의약품용 유연물질, 표준품 전문업체
Specialty of Pharmaceutical Impurity & Reference Standard

  • Leflunomide
    Chemical name : 5-Methyl-N-[4-(trifluoro methyl)phenyl]isoxazole-4-carboxamide
    Mol. Formula : C12H9F3N2O 2
    Mol. Weight : 270.2
    • Leflunomide Impurity A (EP)
      Code : VL140001
      Chemical name : 4-(Trifluoromethyl)aniline
  • Lumefentrine
    Chemical name : 2-(dibutylamino)-1-[(9Z)-2,7-dichloro-9-(4-chlorobenzylidene)-9H-fluoren-4-yl]ethanol
    Mol. Formula : C30H32Cl3NO
    Mol. Weight : 528.94
    • Lumefentrine D9
      Code : VL130001
      Chemical name : 2-(dibutylamino-d9)-1-[(9Z)-2,7-dichloro-9-(4-chlorobenzylidene)-9H-fluoren-4-yl]ethanol
    • Lumefentrine Keto Impurity
      Code : VL130002
      Chemical name : 9-Des[(4-chlorophenyl)methylene]-9-oxo Lumefantrine
  • Lamivudin
    Chemical name : 4-Amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1H)-one
    Mol. Formula : C8H11N3O3S
    Mol. Weight : 229.3
    • Lamivudin Impurity C (EP)
      Code : VL120001
      Chemical name : 2-Hydroxybenzoic acid
    • Lamivudin Impurity E (EP)
      Code : VL120002
      Chemical name : 4-aminopyrimidin-2(1H)-one
    • Lamivudin Impurity F (EP)
      Code : VL120003
      Chemical name : pyrimidine-2,4(1H,3H)-dionene
  • Lercanidipine Hydrochloride
    Chemical name : 2[(3,3-diphenylpropyl)(methyl) amino]-1,1-dimethylethyl methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
    Mol. Formula : C36H42ClN3O6
    Mol. Weight : 648.19
    • Lercanidipine Impurity A
      Code : VL110001
      Chemical name : 1-[(3,3-Diphenyl-propyl)-methyl-amino]-2-methyl-propane-2-ol
    • Lercanidipine Impurity C
      Code : VL110002
      Chemical name : 3-Amino-but-2-enoic acid2-[(3,3-diphenyl-propyl)-methyl-amino]-1,1-dimethyl-ethyl ester
    • Lercanidipine Impurity D
      Code : VL110003
      Chemical name : 2,6-Dimethyl-4-(3-nitro-phenyl) pyridine-3,5-dicarboxylic acid-2[N-(3,3-diphenyl-propyl)-N-methylamino]-1,1-dimethyl ethylmethyl-5 methyl ester
    • Lercanidipine Impurity E
      Code : VL110004
      Chemical name : 2-(3-Nitro-benzylidene)-3-oxo-butyricacid methyl ester
    • Lercanidipine Impurity F
      Code : VL110005
      Chemical name : 2,6-Dimethyl-4-(3-nitrophenyl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid dimethyl ester 1-[(3,3-Diphenyl-propyl)-methyl-amino]-2-methyl-propane-2-ol
    • Lercanidipine Impurity G
      Code : VL110006
      Chemical name : 2-(3-Nitro-phenyl)-4-hydroxy-4-methyl-6-oxo-cyclohexane-1,3-dicarboxylic acid dimethyl ester
    • Lercanidipine Impurity H
      Code : VL110007
      Chemical name : 2,6-Dimethyl-5-methoxycarbonyl-4-(3-nitrophenyl)-1,4-dihydro-pyridine-3-carboxylic acid
  • Lacosamide
    Chemical name : N2-acetyl-N-benzyl-D-homoserinamid
    Mol. Formula : C13H18N2O3
    Mol. Weight : 250.29
    • Lacosamide Impurity A
      Code : VL100001
      Chemical name : (R)-N-Benzyl-2-N-Boc-amino-3-methoxypropionamide
    • Lacosamide Impurity B
      Code : VL100002
      Chemical name : (R)-2-Amino-N-benzyl-3-methoxypropionamide
    • Lacosamide Impurity C
      Code : VL100003
      Chemical name : (R)-2-Amino-N-benzyl-3-methoxypropionamide
    • Lacosamide Impurity D
      Code : VL100004
      Chemical name : 2(R)-Acetamido-N-benzyl-3-hyoxypropionamide
    • Lacosamide Impurity E
      Code : VL100005
      Chemical name : 2(R)-(Acetylamino)-3-(benzylamino)-3-oxopropyl acetate
    • Lacosamide Impurity F
      Code : VL100006
      Chemical name : 2(R)-Propionylamino-N-benzyl-3-methoxypropionamide
    • Lacosamide Impurity G
      Code : VL100007
      Chemical name : 1,3-Diisopropylurea
    • Lacosamide Impurity H
      Code : VL100008
      Chemical name : 2(S)-Acetamido-N-benzyl-3-methoxypropionamide
  • Loxoprofen
    Chemical name : (RS)-2-{4-[(2-oxocyclopentyl)methyl]phenyl}propanoic acid
    Mol. Formula : C15H18O3
    Mol. Weight : 246.3
    • Mefenamic acid Impurity –A(EP)
      Code : VM090001
      Chemical name : 2,3-Dimethylaniline
    • Mefenamic acid Impurity –B
      Code : VM090002
      Chemical name : N-(2,3-Dimethylphenyl)- 2-[(2,3-dimethylphenyl)amino]benzamide
    • Mefenamic acid Impurity –C
      Code : VM090003
      Chemical name : 2-Chlorobenzoic Acid
    • Mefenamic acid Impurity –D
      Code : VE150001
      Chemical name : Benzoic Acid
    • Loxoprofen Impurity A
      Code : VL090001
      Chemical name : 2-(4-Bromomethyl)phenylpropionic acid
    • Loxoprofen Impurity B
      Code : VL090002
      Chemical name : Methyl 2-oxocyclopentanecarboxylate
    • Loxoprofen Impurity C
      Code : VL090003
      Chemical name : methyl 1-[4-(1-methoxy-1-oxopropan-2-yl)benzyl]-2-oxocyclopentanecarboxylate
  • Loperamide Hydrochloride
    Chemical name : 4-[4-(4-chlorophenyl)-4-hydroxy piperidin-1-yl]- N,N-dimethyl-2,2-diphenyl butanamide hydrochloride
    Mol. Formula : C29H33ClN2O2.HCl
    Mol. Weight : 513.5
    • Meloxicam Impurity A(EP) (USP RC A)
      Code : VM080001
      Chemical name : ethyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1-dioxide,
    • Meloxicam Impurity-B (EP)
      Code : VM080002
      Chemical name : 5-Methylthiazole-2-amine
    • Meloxicam Impurity-C (EP)
      Code : VM080003
      Chemical name : N-[(2Z)-3,5-dimethyl-1,3-thiazol-2(3H)-ylidene]-4-hydroxy-2-methyl-2H-1,2-benzo thiazine-3-carboxamide-1,1-dioxide
    • Meloxicam Impurity-D
      Code : VM080004
      Chemical name : N-[(2Z)-3,ethyl-5-methyl-1,3-thiazol-2(3H)-ylidene]-4-hydroxy-2-methyl-2H-1,2- benzothiazine-3-carboxamide 1,1-dioxide
    • Desmethyl Meloxicam
      Code : VM080005
      Chemical name : 4-Hydroxy-2-methy-(5-methyl-1,3-thiazol-2-yl)-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide
    • Meloxicam Iso Propyl Ester
      Code : VM080006
      Chemical name : Isopropyl 4-Hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide
    • Meloxicam EP Impurity E
      Code : VM080007
      Chemical name : methyl 4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxylate 1,1- dioxide,
    • Loperamide Impurity B (EP)
      Code : VL080001
      Chemical name : 4-(4-chlorophenyl)-1,1-bis[4-(dimethylamino)-4-oxo-3,3-diphenylbutyl]-4-hydroxypiperidinium
    • Loperamide Impurity C (EP)
      Code : VL080002
      Chemical name : 4-(4-chlorophenyl)piperidin-4-ol
    • Loperamide Impurity D (EP)
      Code : VL080003
      Chemical name : 4-(4-hydroxy-4-phenylpiperidin-1-yl)-N,N-dimethyl-2,2-diphenylbutanamide
    • Loperamide Impurity E (EP)
      Code : VL080004
      Chemical name : 4-(4-chlorophenyl)-1-[4-[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]-2,2-diphenylbutanoyl] piperidin-4-ol
    • Loperamide Impurity G (EP)
      Code : VL080005
      Chemical name : 4-[cis-4-(4-chlorophenyl)-4-hydroxy-1-oxidopiperidin-1-yl]-N,N-dimethyl-2,2-diphenyl butanamide
    • Loperamide Impurity H (EP)
      Code : VL080006
      Chemical name : 4-[4-(4-chlorophenyl)-3,6-dihydropyridin-1(2H)-yl]-N,N-dimethyl-2,2-diphenylbutanamide
    • Loperamide Tetrahydrate
      Code : VL080007
      Chemical name : 4-[4-(4-chlorophenyl)-4-hydroxypiperidin-1-yl]- N,N-dimethyl-2,2-diphenylbutanamide
  • Losartan
    Chemical name : 1H-Imidazole-5-methanol, 2-butyl-4-chloro-1-[[2¢-(lH-tetrazol-5-yl)[1,1¢-biphenyl]-4-yl]methyl]-
    Mol. Formula : C22H23ClN6O
    Mol. Weight : 422.92
    • Mycophenolate Di-Mofetil: (Morpholinomethoxy Analog of Mycophenolate)
      Code : VM070001
      Chemical name : 2-Morpholinoethyl (E)-6-[1,3-dihydro-4-(2-morpholinoethoxy)-6-methoxy-7-methyl-3-oxo-5-isobenzofuranyl]-4-methyl-4-hexenoate
    • Mycophenolate Mofetil Impurity-A(EP): (O-Desmethyl Mycophenolate Mofetil)
      Code : VM070002
      Chemical name : 2-(morpholin-4-yl)ethyl (4E)-6-(4,6-dihydroxy-7-methyl-3-oxo-1,3-dihydroisobenzofuran-5-yl)-4-methylhex-4-enoate
    • Mycophenolate EP Impurity B
      Code : VM070003
      Chemical name : 2-(morpholin-4-yl)ethyl (4E)-6-[(1RS)-4-hydroxy-6-methoxy-7-methyl-1-[2-(morpholin-4-yl) ethoxy]-3-oxo-1,3-dihydroisobenzofuran-5-yl]-4-methylhex-4-enoate
    • Mycophenolate EP Impurity C: (Mycophenolate cis Mofetil)
      Code : VM070004
      Chemical name : 2-(morpholin-4-yl)ethyl (4Z)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro isobenzofuran-5-yl)-4-methylhex-4-enoate
    • Mycophenolate EP Impurity-D: (O-Methyl Mycophenolate Mofetil)
      Code : VM070005
      Chemical name : 2-(morpholin-4-yl)ethyl (4E)-6-(4,6-dimethoxy-7-methyl-3-oxo-1,3-dihydroisobenzo furan-5-yl)-4-methylhex-4-enoate
    • Mycophenolate EP Impurity-E
      Code : VM070006
      Chemical name : methyl (4E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydroisobenzofuran-5-yl)-4-methylhex-4-enoate
    • Mycophenolate EP Impurity-F
      Code : VM070007
      Chemical name : (4E)-6-(4-hydroxy-6-methoxy-7-ethyl-3-oxo1,3-dihydroisobenzofuran-5-yl)-4-methylhex-4-enoic acid (mycophenolic acid)
    • Mycophenolate EP Impurity-G: (Mycophenolate Mofetil N-Oxide)
      Code : VM070008
      Chemical name : 2-(morpholin-4-yl)ethyl (4E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydro isobenzofuran-5-yl)-4-methylhex-4-enoate N-oxide
    • Mycophenolate EP Impurity-H: (USP RC B) (Mycophenolic Lactone)
      Code : VM070009
      Chemical name : 7-hydroxy-5-methoxy-4-methyl-6-[2-[(2RS)-2-methyl-5-oxotetrahydrofuran-2-yl]ethyl] isobenzofuran-1(3H)-one
    • O-Desmethyl Mycophenolic Acid
      Code : VM070010
      Chemical name : (4E)-6-(1,3-Dihydro-4,6-dihydroxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoic Acid
    • O-Methyl Mycophenolic Acid
      Code : VM070011
      Chemical name : Mycophenolic Acid O-Methyl
    • O-Desmethyl Mycophenolic Acid Methyl Ester
      Code : VM070012
      Chemical name : (4E)-6-(1,3-Dihydro-4,6-dihydroxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoic Acid Methyl Ester
    • Mycophenolic Hydroxy Lactone
      Code : VM070013
      Chemical name : (RS)-7-Hydroxy-5-methoxy-4-methyl-6-[2-hydroxy-2-(5-methyl-2-oxo-tetrahydro-furan-5-yl)-ethyl]-3H-isobenzofuranyl-1-one
    • O-Methyl Mycophenolic Acid Methyl Ester
      Code : VM070014
      Chemical name : (4E)-6-(1,3-Dihydro-4,6-dimethoxy-7-methyl-3-oxo-5-isobenzofuranyl)-4-methyl-4-hexenoic Acid Methyl Ester
    • Mycophenolic Acid Sodium Salt
      Code : VM070015
      Chemical name : (4E)-6-(4-Hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydroisobenzofuran-5-yl)-4-methylhex-4-enoic acid sodium salt
    • Mycophenolic Lactone Ether
      Code : VM070016
      Chemical name : Mycophenolic Lactone Ether
    • Mycophenolate Dimethylamide
      Code : VM070017
      Chemical name : (E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydroisobenzofuran-5-yl)-N,N,4-trimethylhex-4-enamide
    • Mycophenolate Dimer
      Code : VM070018
      Chemical name : Mycophenolate Mofetil Mycophenolic Ester
    • O-Desmethyl Mycophenolate Ether
      Code : VM070019
      Chemical name : Mycophenolate O-Desmethyl Ether
    • Mycophenolate Methyl Ester (Mycophenolate EP Imp E)
      Code : VM070020
      Chemical name : methyl (4E)-6-(4-hydroxy-6-methoxy-7-methyl-3-oxo-1,3-dihydroisobenzofuran-5-yl)-4-methylhex-4-enoate
    • Losartan Impurity A (EP)
      Code : VL070001
      Chemical name : 2-Butyl-4-chloro-1H-imidazole-5-methanol
    • Losartan Impurity B (EP)
      Code : VL070002
      Chemical name : p-(o-1H-tetrazol-5-ylphenyl)benzyl alcohol
    • Losartan Impurity C (EP)
      Code : VL070003
      Chemical name : 2-Butyl-5-chloro-1-[p-(o-1H-tetrazol-5-ylphenyl)benzyl]imidazole-4-methanol
    • Losartan Impurity D (EP)
      Code : VL070004
      Chemical name : 2-Butyl-4-chloro-1H-imidazole-5-carbaldehyde
    • Losartan Impurity E (EP)
      Code : VL070005
      Chemical name : 5-(4'-Methyl-(1,1'-biphenyl)-2-yl)-1H-tetrazole
    • Losartan Impurity F (EP)
      Code : VL070006
      Chemical name : Losartan Isopropyl Ether
    • Losartan Impurity G (EP)
      Code : VL070007
      Chemical name : Triphenyl methanol
    • Losartan Impurity H (EP)
      Code : VL070008
      Chemical name : N1-Trityl Losartan ; N1-Triphenyl methyl Losartan
    • Losartan Impurity I (EP)
      Code : VL070009
      Chemical name : O-Trityl Losartan ; Losartan Trityl ether
    • Losartan Impurity J (EP)
      Code : VL070010
      Chemical name : 2-Butyl-4-chloro-1-[[2’-(2H-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1Himidazole-5-methanol-5-Acetate
    • Losartan Impurity K (EP)
      Code : VL070011
      Chemical name : 2-Butyl-4-chloro-1-[[2’-(2H-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1Himidazole-5-caboxy aldehyde
    • Losartan Carboxylic Acid
      Code : VL070012
      Chemical name : 2-Butyl-4-chloro-1-[[2’-(1H-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1H-imidazole-5-carboxylic Acid
    • Losartan Monopotassium Salt
      Code : VL070013
      Chemical name : 2-Butyl-4-chloro-1-{[2′-(1H-tetrazol-5-yl)(1,1′-biphenyl)-4-yl]methyl}-1H-imidazole-5-methanol monopotassium salt
    • Losartan Impurity-Trityl Methyl Ether
      Code : VL070014
      Chemical name : Methyl triphenylmethyl ether
    • Losartan Bromo N1 Trityl Impurity
      Code : VL070015
      Chemical name : 5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-1,-trityl-1H-tetrazole
    • N1,O-Ditrityl Losartan
      Code : VL070016
      Chemical name : 2-Butyl-4-chloro-1-[[2'-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1'-biphenyl-4-yl]methyl]-1H-imidazole-5-(trityloxy)methyl ether
  • Lisinopril
    Chemical name : (2S)-1-[(2S)-6-Amino-2-[[(1S)-1-carboxy-3-phenylpropyl]amino]hexanoyl]pyrrolidine-2-carboxylic acid dihydrate
    Mol. Formula : C21H35N3O7
    Mol. Weight : 441.52
    • Moxifloxacin Hydrochloride Impurity-A(EP)(USP RC A): (8-Desmethoxy-8-fluoro Moxifloxacin)
      Code : VM060001
      Chemical name : 1-cyclopropyl-6,8-difluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6- yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
    • Moxifloxacin Hydrochloride Impurity-B (EP)
      Code : VM060002
      Chemical name : 1-cyclopropyl-6,8-dimethoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin -6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
    • Moxifloxacin Hydrochloride Impurity-C (EP)
      Code : VM060003
      Chemical name : 1-cyclopropyl-8-ethoxy-6-fluoro-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
    • Moxifloxacin Hydrochloride Impurity-D(EP)
      Code : VM060004
      Chemical name : 1-cyclopropyl-8-fluoro-6-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo [3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid dihydrochloride
    • Moxifloxacin Hydrochloride Impurity-E (EP)
      Code : VM060005
      Chemical name : 1-cyclopropyl-6-fluoro-8-hydroxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3, 4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
    • Moxifloxacin R,R-Isomer : (Moxifloxacin Enantiomer)
      Code : VM060006
      Chemical name : 1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(4aR,7aR)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinolinecarboxylic Acid
    • Moxifloxacin Methyl Ester Impurity
      Code : VM060007
      Chemical name : methyl 1-cyclopropyl-6-fluoro-1,4-dihydro-7-((4aS,7aS)-octahydropyrrolo[3,4-b]pyridin-6-yl)-8-methoxy-4-oxoquinoline-3-carboxylate
    • Decarboxylated Moxifloxacin Impurity
      Code : VM060008
      Chemical name : 1-cyclopropyl-6-fluoro-7-(4aS,7aS)-octahydropyrrolo[3,4-b]pyridine-6-yl)-8-methoxy quinolin-4(1H)-one
    • Moxifloxacin Methoxy Quinolin Impurity : (Moxifloxacin Difluoro methoxy Impurity)
      Code : VM060010
      Chemical name : 1-Cyclopropyl-6,7-difluoro-8-methoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic Acid
    • 8-Hydroxy Quinolinic Acid : (Moxifloxacin Difluro Hydroxy Impurtiy)
      Code : VM060011
      Chemical name : 1-cyclopropyl-6,7-difluoro-8-hydroxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
    • Moxifloxacin Quinelonic Ethyl Ester Impurity
      Code : VM060012
      Chemical name : 1-Cyclopropyl-6,7-difluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic Acid Ethyl Ester
    • 7-Amino Moxifloxacin Impurity
      Code : VM060013
      Chemical name : 7-Amino-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo-3-quinolinecarboxylic Acid
    • Moxifloxacin
      Code : VM060014
      Chemical name : 1-Cyclopropyl-6-fluoro-8-methoxy-7-[(4aS,7aS)-octahydro-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
    • N-Methyl Moxifloxacin Hydrochloride
      Code : VM060015
      Chemical name : 1-Cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-7-[(4aS,7aS)-octahydro-1-methyl-6H-pyrrolo[3,4-b]pyridin-6-yl]-4-oxo-3-quinoline carboxylic acid hydrochloride
    • Lisinopril Impurity A (EP)
      Code : VL060001
      Chemical name : (2RS)-2-amino-4-phenylbutanoic acid
    • Lisinopril Impurity B (EP)
      Code : VL060002
      Chemical name : 4-methylbenzenesulphonic acid
    • Lisinopril Impurity C (EP)
      Code : VL060003
      Chemical name : (2S)-2-[(3S,8aS)-3-(4-aminobutyl)-1,4-dioxohexahydropyrrolo[1,2-a]pyrazin-2(1H)-yl]-4-phenyl butanoic acid
    • Lisinopril Impurity D (EP)
      Code : VL060004
      Chemical name : (2S)-2-[(3S,8aR)-3-(4-aminobutyl)-1,4-dioxohexahydropyrrolo[1,2-a]pyrazin-2(1H)-yl]-4-phenylbutanoic acid
    • Lisinopril Impurity E (EP)
      Code : VL060005
      Chemical name : (2S)-1-[(2S)-6-amino-2-[[(1R)-1-carboxy-3-phenylpropyl]amino]hexanoyl]pyrrolidine-2-carboxylic acid
    • Lisinopril Impurity F (EP)
      Code : VL060006
      Chemical name : (2S)-1-[(2S)-6-amino-2-[[(1S)-1-carboxy-3-yclohexylpropyl]amino]hexanoyl]pyrrolidine-2-carboxylic acid
  • Levofloxacin
    Chemical name : (S)-9-fluoro-2,3-dihydro-3-methyl-10-(4-methylpiperazin-1-yl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid hemihydrate
    Mol. Formula : C18H20FN3O4.1/2H2O
    Mol. Weight : 370.37
    • Montelukast (Acid)
      Code : VM050001
      Chemical name : (S,E)-2-(1-((1-(3-(2-(7-chloro quinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl) propylthio)methyl)cyclopropyl)acetic acid
    • Montelukast Mercapto Impurity
      Code : VM050002
      Chemical name : 3-(Mercaptomethyl)cyclopropane acetic acid
    • Montelukast Sulfoxide Impurity-A:(EP Impurity C/USP a)
      Code : VM050005
      Chemical name : [1-[[[1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydrox-ypropan-2-yl)phenyl] propyl]sulfinyl]methyl]cyclopropyl]acetic acid
    • Montelukast Impurity B: (Montelukast Hydroxy Impurity)
      Code : VM050003
      Chemical name : 2-[3-(S)-[3-(2-(7-Chloro-2-quinolinyl) ethenyl)phenyl]-3-hydroxypropyl]phenyl-2-propanol
    • Montelukast Imp C (Methyl styrene Impurity)(EP Imp B, USP RC F)
      Code : VM050008
      Chemical name : 2-[1-[[(1R)-1-[3-[(E)-2-(7-chloro-2-quinolyl)vinyl]phenyl]-3-(2-isopropenylphenyl) propyl]sulfanylmethyl]cyclopropyl]acetic acid
    • Montelukast Impurity E(Michael Adduct mixture of Distereoisomers)
      Code : VM050017
      Chemical name : 1-[[[(1R)-1-[3-[(1R)-1-[[[1-(Carboxy methyl)cyclopropyl]methyl]thio]-2-(7-chloro-2-quino linyl) ethyl]phenyl]-3-[2-(1-hydroxy-1-methyl ethyl) phenyl]propyl]thio]methyl]cyclopropaneacetic Acid
    • Montelukast Imp F (Montelukast Methylketone Impurity)(EP Impurity F, USP e)
      Code : VM050007
      Chemical name : 1-[[[(1R)-3-(2-Acetylphenyl)-1-[3-[(1E)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]propyl] thio] methyl]cyclopropaneacetic Acid
    • Montelukast Imp G (cis Montelukast)
      Code : VM050010
      Chemical name : [R)]-1-[3-[(1Z)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic Acid
    • Montelukast Imp G (Racemic Montelukast)
      Code : VM050010A
      Chemical name : [RS-(E)]-1-[3-[(1Z)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic Acid
    • Montelukast EP Impurirty I
      Code : VM050020
      Chemical name : [1-[1-[[[(1R)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropyl](hydroxy)acetic Acid
    • Montelukast 3-Oxo Impurity
      Code : VM050004
      Chemical name : 2-[3-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-oxopropyl]benzoic Acid Methyl Ester
    • Montelukast 3-Hydroxy Impurity
      Code : VM050006
      Chemical name : Methyl [E]-2-[3-(S)-[3-[2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-hydroxypropyl] benzoate
    • Montelukast Disulfide Impurity
      Code : VM050009
      Chemical name : 1-[1-Carboxymethyl-cyclopropyl methyl disulfanylmethyl) cyclopropyl] acetic acid
    • Montelukast Dicyclohexylamine
      Code : VM050011
      Chemical name : [RS-(E)]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid sodium salt
    • Montelukast Sulfone
      Code : VM050012
      Chemical name : 1-[[[1-[3-[2-(7-Chloro-2-quinolinyl) ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl) phenyl] propyl]sulfonyl]methyl]cyclopropaneacetic Acid
    • Montelukast Lactone
      Code : VM050013
      Chemical name : (3S)-3-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-4,5-dihydro-2-benzoxepin-1(3H)-one
    • Montelukast Ether Impurity
      Code : VM050014
      Chemical name : 7-Chloro-2-[2-[3-(1,3,4,5-tetrahydro-1,1-dimethyl-2-benzoxepin-3-yl)phenyl]ethenyl] quinoline
    • Montelukast Dihydro Impurity
      Code : VM050015
      Chemical name : 1-[[[(1R)-1-[3-[2-(7-Chloro-2-quinolinyl)ethyl]phenyl]-3-[2-(1-hydroxy-1-methyl ethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic acid sodium salt
    • Montelukast Ester Impurity
      Code : VM050016
      Chemical name : 2-[1-[1-[3-[2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(methoxycarbonyl)phenyl]propylsulfanyl methyl]cyclopropyl]acetic acid
    • ent-Montelukast Sodium
      Code : VM050018
      Chemical name : 1-[[[(1S)-1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methyl ethyl)phenyl]propyl]thio]methyl]cyclopropaneacetic Acid Sodium Salt
    • Montelukast Sodium D6 salt
      Code : VM050021
      Chemical name : montelukast-d6, sodium salt
    • Montelukast acid impurity (Disodium Salt)
      Code : VM050022
      Chemical name : 2((3R)-3-({[1-(carboxylatomethyl)cyclopropyl]methyl} thio)-3-{3-[(E)-2-(7-Chloroquinolin-2-yl)vinyl]phenyl}propyl)benzoated disodium salt.
    • Montelukast Chloro alcohol Impurity
      Code : VM050023
      Chemical name : 2-[2-[3S-[3(E)-[2-(7-Chloroquinoline-2-yl) ethenyl]phenyl]-3-chloropropyl]phenyl]- 2-propanol.
    • N-Desmethyl Levofloxacin
      Code : VL050001
      Chemical name : (S)-9-fluoro-2,3-dihydro-3-methyl-10-(piperazin-1-yl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid
    • Levofloxacin N-Oxide Impurity
      Code : VL050002
      Chemical name : (S)-4-(6-carboxy-9-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido-[1,2,3-de][1,4]benzoxazine-10-yl)-1-mthyl-piperazine-1-oxide
    • Levofloxacin 9-Piperazine Isomer
      Code : VL050003
      Chemical name : (S)-9-Fluoro-2,3-dihydro-3-methyl-10-(piperazin-1-yl)-7-oxo-7H-pyrido[1,2,3-de][1,4]benzoxazine-6-carboxylic acid
    • Levofloxacin Diamine Impurity
      Code : VL050004
      Chemical name : N,N-Didesethylene Levofloxacin Hydrochloride
    • 9-Desfluoro Levofloxacin
      Code : VL050005
      Chemical name : (3S)-2,3-Dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid
    • Descarboxyl Levofloxacin Impurity
      Code : VL050006
      Chemical name : (3S)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7H-pyrido[1,2,3-de]-1,4-benzoxazin-7-one
    • Levofloxacin USP B
      Code : VL050007
      Chemical name : 9,10-Difluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid
    • Dextro Isomer of Levofloxacin
      Code : VL050008
      Chemical name : (+)-(R)-9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic acid
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