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

  • Enalapril Maleate (EP)
    Chemical name : (2S)-1-[(2S)-2-[[(1S)-1-(Ethoxy carbonyl)-3-phenylpropyl]amino] propanoyl]pyrrolidine-2-carboxylic acid (Z)-butenedioate
    Mol. Formula : C20H28N2O5,C4H4O4
    Mol. Weight : 492.5 g/mol
    • Enalapril EP Imp A
      Code : VE010001
      Chemical name : (2S)-1-[(2S)-2-[[(1R)-1-(ethoxycarbonyl)-3-phenylpropyl]amino]propanoyl] pyrrolidine-2-carboxylic acid
    • Enalapril EP Imp B
      Code : VE010002
      Chemical name : (2S)-2-[[(1S)-1-(ethoxycarbonyl)-3-phenylpropyl]amino]propanoic acid
    • Enalapril EP Imp C
      Code : VE010003
      Chemical name : (2S)-1-[(2S)-2-[[(1S)-1-carboxy-3-phenylpropyl]amino]propanoyl]pyrrolidine-2- carboxylic acid
    • Enalapril EP Imp D
      Code : VE010004
      Chemical name : ethyl (2S)-2-[(3S,8aS)-3-methyl-1,4-dioxo-octahydropyrrolo[1,2-a]pyrazin-2-yl]-4- phenylbutanoate
    • Enalapril EP Imp E
      Code : VE010005
      Chemical name : (2S)-1-[(2S)-2-[[(1S)-3-phenyl-1-[(2phenylethoxy)carbonyl]propyl]amino]propanoyl] pyrrolidine-2-carboxylic acid
    • Enalapril EP Imp F
      Code : VE010006
      Chemical name : (2S)-1-[(2S)-2-[[(1S)-1-butoxycarbonyl) -3-phenylpropyl]amino]propanoyl]pyrrolidine-2- carboxylic acid
    • Enalapril EP Imp G
      Code : VE010007
      Chemical name : (2S)-2-[[(1S)-3-cyclohexyl-1-(ethoxycarbonyl)propyl]amino]propanoic acid
    • Enalapril EP Imp H
      Code : VE010008
      Chemical name : (2S)-1-[(2S)-2-[[(1S)-3-cyclohexyl-1-(ethoxycarbonyl)propyl]amino]propanoyl]pyrrolidine- 2-carboxylic acid
    • Enalapril EP Imp I
      Code : VC080004
      Chemical name : 1H-imidazole
    • Enalaprilat-d5 Sodium Salt
      Code : VE010011
      Chemical name : N-[(1S)-1-(Carboxy)-(3-phenyl-d5)propyl]-L-alanyl]-L-proline Dihydrate; Enalaprilic Acid-d5;
  • Entacapone
    Chemical name : (2E)-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethylprop-2-enamide
    Mol. Formula : C14H15N3O5
    Mol. Weight : 305.29 g/mol
    • Cis-Entacapone: (Entacapone Z Isomer) (Entacapone EP Imp A)
      Code : VE020001
      Chemical name : (2Z)-2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-diethyl-2-propenamide
    • Entacapone Imp C Entacapone Methoxy Impurity)
      Code : VE020002
      Chemical name : N,N-Diethyl-2-Hydroxy-3-Methoxy Phenyl Propenamide
    • Entacapone Benzaldehyde Impurity : (Entacapone EP Imp C)
      Code : VE020004
      Chemical name : 3,4-dihydroxy-5-nitro benzaldehyde
    • Entacapone -d10 (Trans)
      Code : VE020005
      Chemical name : (2E)-2-Cyano-3-(3,4-dihydroxy-5-nitrophenyl)-N,N-di-(ethyl-d5)-2-propenamide
  • Esomeprazole Magnesium Trihydrate
    Chemical name : 5-methoxy-2-[(4-methoxy-3,5-dimethyl-2-pyridyl)methylsulfinyl]benzimidazol-1-ide
    Mol. Formula : C34H36MgN6O6S2.3H2O
    Mol. Weight : 767.17 g/mol
    • Esomeprazole Magnesium Trihydrate EP Impurity-A: (Omeprazole EP Imp A (USP RC B)
      Code : VO040001
      Chemical name : 5-methoxy-1H-benzimidazole-2-thiol
    • Esomeprazole Magnesium Trihydrate EP Impurity-B (Desmethoxy Omeprazole): (Omeprazole EP Imp B)
      Code : VO040002
      Chemical name : 2-[(RS)-[(3,5-dimethylpyridin-2-yl)methyl]sulphinyl]-5-methoxy-1Hbenzimidazole
    • Esomeprazole Magnesium Trihydrate EP Impurity-C: (Ufiprazole) (Omeprazole EP Imp C)
      Code : VO040003
      Chemical name : 5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphanyl]-1H- benzimidazole (ufiprazole)
    • Esomeprazole Magnesium Trihydrate EP Impurity-D (USP RC A) (Omeprazole Sulfone)
      Code : VO040004
      Chemical name : 5-methoxy-2-[[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphonyl]-1H-benzimidazole (omeprazole sulphone),
    • Esomeprazole Magnesium Trihydrate EP Impurity – E : (Omeprazole – N-Oxide)
      Code : VO040005
      Chemical name : 4-Methoxy-2-[[(RS)-(5-methoxy- 1H-benzimidazol-2-yl)sulfinyl]methyl]-3,5-dimethylpyridine 1-oxide
    • Esomeprazole N-Oxide: (Esomeprazole Imp 4) (V2 Chempharma)
      Code : VE030007
      Chemical name : 6-mthoxy-1-benzimidazole n-oxide
    • Esomeprazole Impurity: (V2 Chempharma)
      Code : VE030008
      Chemical name : 4-methoxy-3,5-dimethylpyridin-2-yl) methanethiol
    • Esomeprazole Magnesium Enantiomer
      Code : VE030009
      Chemical name : 5-Methoxy-2-[(R)-[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulphinyl]-1H-benzimidazole
    • Esomeprazole Impurity : (V2 Chempharma)
      Code : VNA
      Chemical name : 2-((3,5-dimethylpyridin-2-yl)methylsulfinyl)-6-methoxy-1H-benzo[d]imidazole
  • Etodolac
    Chemical name : 2-[(1RS)-1,8-Diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl]acetic acid.
    Mol. Formula : C17H21NO3
    Mol. Weight : 287.35 g/mol
    • Etodolac EP Imp C(USP RC A)
      Code : VE040001
      Chemical name : 2-[(1RS)-8-ethyl-1-methyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl]acetic acid (1-methyl etodolac)
    • Etodolac EP Imp H :(7-Ethyltryptophol)
      Code : VE040002
      Chemical name : 2-(7-ethyl-1H-indol-3-yl)ethanol
    • Etodolac Impurity I
      Code : VE040024
      Chemical name : (3RS) -3-[7-ethyl-3-(2-hydroxyethyl)-1H-indol-2-yl]-3-(7-ethyl-1H-indol-3- yl)pentanoic acid
    • Etodolac EP Imp J
      Code : VE040003
      Chemical name : (1RS)-1,8-diethyl-1-methyl-1,3,4,9-tetrahydropyrano[3,4-b]indole (decarboxy etodolac)
    • Etodolac Imp K
      Code : VE040004
      Chemical name : methyl 2-[(1RS)-1,8-diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indol-1-yl]acetate (etodolac methyl ester)
    • Etodolac Impurity LEtodolac Impurity L
      Code : VE040025
      Chemical name : 3-(7-Ethyl-3-(2-hydroxyethyl)-1H-indol-2-yl)pent-2-enoic Acid
  • Ethinyl Estradiol
    Chemical name : 19-Nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17-diol
    Mol. Formula : C20H24O2
    Mol. Weight : 296.40 g/mol
    • Ethinyl Estradiol EP Impurity B
      Code : VE050003
      Chemical name : (17α)-19-Norpregna-1,3,5(10),9(11)-tetraen-20-yne-3,17-diol
    • Ethinyl Estradiol EP Impurity C: (Estrone)
      Code : VE050001
      Chemical name : 1,3,5(10)-Estratrien-3-ol-17-one; 3-Hydroxy-1,3,5(10)-estratrien-17-one
    • Ethinyl Estradiol EP Impurity F
      Code : VE050004
      Chemical name : 6β-Hydroxy-ethynyl estradiol
    • Ethinyl Estradiol EP Impurity I
      Code : VE050002
      Chemical name : Delta-6(7)-ethinyl estradiol
    • Ethinyl Estradiol EP Impurity K
      Code : VE050005
      Chemical name : R1 = CH3, R2 = R3 = R4 = R5 = H, R6 = C≡CH, R7 = OH: 4-methyl-19-nor-17α-pregna-1,3,5(10)-trien-20-yne-3,17-diol (4-methyl-ethinylestradiol),
    • Ethinylestradiol-d4
      Code : VE050006
      Chemical name : 17α-Ethynylestradiol-2,4,16,16-d4
    • Estrone-d4
      Code : VE050007
      Chemical name : 3-Hydroxyestra-1,3,5(10)-trien-17-one-d4
    • 17ß- Estradiol 16,16,17-d3 (Estradiol-d3)
      Code : VE050008
      Chemical name : (17β)-Estra-1,3,5(10)-triene-3,17-diol-d3; 3,17-Epidihydroxyestratriene-d3
    • 2-Methyl-3,17ß-estradiol
      Code : VE050009
      Chemical name : (17β)-2-Methylestra-1,3,5(10)-triene-3,17-diol
    • Ehinylestradiol EP Imp D (ß-Estradiol)
      Code : VE050010
      Chemical name : (17β)-estra-1,3,5(10)-triene-3,17-diol
    • Estradiol-d4
      Code : VE050011
      Chemical name : 17ß-Estradiol-2,4,16,16-d4
    • 17β-Ethynyl-3-17α Estradiaol
      Code : VE050012
      Chemical name : 17-epi-Ethynyl Estradiol
    • 17α Estradiaol
      Code : VE050013
      Chemical name : 17α)-Estra-1,3,5(10)-triene-3,17-diol; 1,3,5-Estratriene-3,17α-diol;
    • 17β-estardiol sodium sulphate (Conjugated Estrogens EP IMP –F)
      Code : VE050014
      Chemical name : 17b-hydroxyestra-1,3,5(10),6,8-pentaen-3-yl sodium sulfate
    • Estrone Acetate
      Code : VE050021
      Chemical name : 17-Oxoestra-1(10),2,4-trien-3-yl acetate
    • Estradiol 3-Enanthate
      Code : VE050023
      Chemical name : Estradiol 3-Enanthate
    • Estradiol Enanthate
      Code : VE050025
      Chemical name : 3-Hydroxyestra-1,3,5(10)-trien-17β-ylEster Heptanoic Acid, 17-Heptanoate Estradiol
  • Escitalopram Oxalate
    Chemical name : S-(+)-1-[3-(Dimethylamino)propyl]-1-(p-fluorophenyl)-5-phthalancarbonitrile oxalate
    Mol. Formula : C20H21FN2O.C2H2O4
    Mol. Weight : 414.43 g/mol
    • Escitalopram R Isomer
      Code : VE060001
      Chemical name : R-(-)-1-[3-(diMethylaMino)propyl]-1-(p-fluorophenyl)-5-phthalancarbonitrile oxalate;
    • N-Chloromethyl Escitalopram Impurity
      Code : VE060002
      Chemical name : N-(Chloromethyl)3-[5-cyano-1-(4-Fluorophenyl)-1,3-dihydro-2-benzofuran-1-yl]-N,N dimethylpropan-1-aminium;
  • Ebastine
    Chemical name : 1-[4-(1,1-Dimethylethyl)phenyl]-4-[4-(diphenylmethoxy)piperidin-1-yl]butan-1-one
    Mol. Formula : C32H39NO2.
    Mol. Weight : 469.7 g/mol
    • Ebastine Impurity B (USP RC B)
      Code : VE070001
      Chemical name : 1-[4-(1,1-dimethylethyl) phenyl] ethanone (4’-tert-Butylacetophenone)
  • Erythromycin
    Chemical name : (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-dideoxy-3-C-methyl-3-Omethyl-a-L-ribo- hexo pyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11, 13-hexamethyl-6-[(3,4,6-trideoxy-3-dimethyl amino-b-D-xylo-hexopyranosyl)-oxy]oxacyclotetradecane-2,10-dione
    Mol. Formula : C37H67NO13
    Mol. Weight : 733.93 g/mol
    • Erythromycin Estolate
      Code : VE080001
      Chemical name : (3R,4S,5S,6R,7R,9R,11R,12R,13S, 14R)-4-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo hexopyranosyl)oxy]-14-ethyl-7,12,13- trihydroxy-3,5,7, 9, 11,13-hexamethyl-6-[[3,4,6-trideoxy-3-(dimethyl amino)-2-Opropionyl-β-D-xylo-hexo pyranosyl]oxy] oxacyclotetradecane-2,10-dione dodecyl sulphate (erythromycin A 2-propionate dodecyl sulphate)
    • Erythromycin A Imino Ether
      Code : VE080002
      Chemical name : Erythromycin A 6,9 Imino Ether
    • Erythromycin Stearate
      Code : VE080003
      Chemical name : octadecanoate of (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-dideoxy-3-C- methyl-3-O-methyl-a-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9, 11,13-hexa methyl -6-[[3,4,6-trideoxy-3-(dimethylamino)-b-D-xylo- hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione
    • Erythromycin Imp F
      Code : VE080006
      Chemical name : Pseudo Erythromycin A Enol Ether
    • Erythromycin Ethylsuccinate Imp G
      Code : VE080004
      Chemical name : (3R,4S,5S,6R,7R,9R,11R,12R, 13S,14R) -4-[(2,6-dideoxy-3-C-methyl-3-O- methyl-a-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13- hexamethyl-6-[[3,4,6-trideoxy-3-[(4-ethoxy-4-oxobutanoyl)methylamino]-b-D-xylo- hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione (Erythromycin-N-ethylsuccinate).
    • Erythromycin Imp G (N-oxide)
      Code : VE080005
      Chemical name : [(2S,3R,4S,6R)-2-[[(3R,4S,5S,6R,7R,9R,11R,12R,13R,14R)-14-ethyl-7,12,13-trihydroxy-4-[(2S,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyl-oxan-2-yl]oxy-3,5,7,9,11,13-hexamethyl-2,10-dioxo-1-oxacyclotetradec-6-yl]oxy]-3-hydroxy-6-methyl-oxan-4-yl]-dimethyl-oxido-azanium
    • Erythromycin A oxime
      Code : VE080007
      Chemical name : 9-Erythromycin 9-Oxime
    • Erythromycin B
      Code : VE080008
      Chemical name : 12-Deoxyerythromycin
    • Erythromycin EP Impurity E(erythromycin A enol ether)
      Code : VE080012
      Chemical name : (2R,3R,4S,5R,8R,9S,10S,11R,12R)-9-[(2,6-dideoxy-3-C-methyl-3-O-methyl-a-L-ribo-hexopyranosyl)oxy]-5-ethyl-3,4-dihydroxy-2,4,8,10,12,14- hexamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-b-D-xylo-hexopyranosyl]oxy]-6, 15-dioxabicyclo[10.2.1]pentadec-1(14)-en-7-one
    • Erythromycin EP Impurity B
      Code : VE080011
      Chemical name : (3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-dideoxy-3-C-methyl-3-O- methyl--L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13- hexamethyl-6-[[3,4,6-trideoxy-3-(methylamino)--D-xylo- hexopyranosyl]oxy]oxacyclotetradecane-2,10-dione
    • Erythromycin EP Impurity D
      Code : VE080010
      Chemical name : (1S,2R,3R,4S,5R,8R,9S,10S,11R,12R,14R)-9-[(2,6-dideoxy-3-C-methyl-3-O- methyl-a-L-ribo-hexopyranosyl)oxy]-5-ethyl-3-hydroxy-2,4,8,10,12,14-hexamethyl- 11-[[3,4,6-trideoxy-3-(dimethylamino)-b-D-xylo-hexopyranosyl]oxy]-6,15,16- trioxatricyclo[10.2.1.11,4]hexadecan-7-one (anhydroerythromycin A),
  • Esmolol Hydrochloride
    Chemical name : methyl (RS)-3-{4-[2-hydroxy-3-(propan-2-ylamino)propoxy]phenyl}propanoate) hydrochloride
    Mol. Formula : C16H26ClNO4
    Mol. Weight : 331.874 g/mol
  • Ethambutol Hydrochloride
    Chemical name : (2S,2’S)-2,2’-(ethylenediimino) dibutan -1-ol dihydrochloride
    Mol. Formula : C10H26Cl2N2O2
    Mol. Weight : 277.2 g/mol
    • Ethambutol Meso Isomer
      Code : VE100001
      Chemical name : R = CH2-OH, R’ = H: (2R,2’S)-2,2’-(ethylenediimino)dibutan-1-ol (meso-ethambutol),
    • Ethambutol EP Imp A
      Code : VE100002
      Chemical name : 2-aminobutan-1-ol
    • Ethambutol Metabolite
      Code : VE100003
      Chemical name : 2,2’-(Ethylenediimino)dibutyric acid
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