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

  • Clonazepam
    Chemical name : 5-(2-Chlorophenyl)-7-nitro-1,3-dihydro-2H-1,4-benzodiazepin-2-one
    Mol. Formula : C15H10ClN3O3
    Mol. Weight : 315.7 g/mol
    • Clonazepam USP Related Compound A (EP Imp B)
      Code : VC190001
      Chemical name : 3-Amino-4-(2-chlorophenyl)-6-nitro quinolin-2(1H)-one
    • Clonazepam USP Related Compound B (EP Imp. A)
      Code : VC190002
    • Clonazepam USP Related Compound C
      Code : VC190003
      Chemical name : 2-bromo-N-[2-(2-chlorobenzoyl)-4-nitrophenyl]acetamide
  • Candesartan
    Chemical name : 2-ethoxy-1-({4-[2-(2H-1,2,3,4-tetrazol-5-yl)phenyl]phenyl}methyl)-1H-1,3-benzodiazole-6-carboxylic acid
    Mol. Formula : C24H20N6O3
    Mol. Weight : 440.45 g/mol
    • Candesartan Cilexetil
      Code : VC180001
    • Candesartan Cilexetil Impurity C
      Code : VC180002
      Chemical name : (1RS)-1-[[(cyclohexyloxy)carbonyl]oxy] ethyl 3-[[2-(1-ethyl-1H-tetrazol-5-yl)biphenyl-4-yl] methyl]-2-oxo-2,3-dihydro-1H-benzimidazole-4-carboxylate
    • Candesartan Cilexetil Impurity D
      Code : VC180003
      Chemical name : (1RS)-1-[[(cyclohexyloxy)carbonyl]oxy] ethyl 3-[[2-(2-ethyl-2H-tetrazol-5-yl)biphenyl-4-yl] methyl]-2-oxo-2,3-dihydro-1H-benzimidazole-4-carboxylate
    • Candesartan Cilexetil N1-Ethyl Impurity: (1H-1-Ethyl Candesartan Cilexetil) (Candesartan Cilexetil EP Imp E)
      Code : VC180004
      Chemical name : 2-ethoxy-1-[[2’-(1-ethyl-1H-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic Acid 1-[[(Cyclohexyloxy)carbonyl]oxy]ethyl Ester
    • Trityl Cilexetil Candesartan Impurity (EP Imp. H)(CandesartanCiliexetil N1-Trytil Analog)
      Code : VC180005
    • Candesartan Ethyl Ester Impurity (EP Imp A)
      Code : VC180006
      Chemical name : 2-Ethoxy-1-[[2-[1-(triphenylmethyl)-1H-tetrazol-5-yl][1,1?-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic Acid ethyl ester
    • Candesartan Desethyl Analog
      Code : VC180007
      Chemical name : 2,3-Dihydro-2-oxo-3-[[2’-(2H-tetrazol -5-yl)[1,1’-biphenyl]- 4-yl]methyl]-1H-benzimidazole-4-carboxylic acid
    • Candesartan EP Impurity I
      Code : VC180008
      Chemical name : methyl 2-ethoxy-1-[[2¢-(1H-tetrazol-5-yl)biphenyl-4-yl]methyl]-1H-benzimidazole- 7-carboxylate.
    • Candesartan-d4
      Code : VC180009
      Chemical name : 2-ethoxy-1-({4-[2-(2H-1,2,3,4-tetrazol-5-yl)phenyl-d4]phenyl}methyl)-1H-1,3-benzodiazole-6-carboxylic acid
    • N- Cilexetil Candesartan Ethyl Ester
      Code : VC180010
    • Candesartan EP Imp B (Candesartan Ketone Cilexetil)
      Code : VC180011
    • Candesartan Imp F ( 2H-2-Ethyl Candesartan Cilexetil)
      Code : VC180012
      Chemical name : 2-Ethoxy-1-[[2’-(2-ethyl-2H-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1H-benzimidazole-7-carboxylic Acid 1-[[(Cyclohexyloxy)carbonyl]oxy]ethyl
    • Candesartan Methyl Ester Desethyl Analog
      Code : VC180013
      Chemical name : 2,3-Dihydro-2-oxo-3-[[2’-(2H-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1H-benzimidazole-4-carboxylic acid methyl ester
    • Candesartan Ethyl Ester Desethyl Analog
      Code : VC180014
      Chemical name : 2,3-Dihydro-2-oxo-3-[[2’-(2H-tetrazol-5-yl)[1,1’-biphenyl]-4-yl]methyl]-1H-benzimidazole-4-carboxylic acid ethyl ester
    • Candesartan N1-Trityl Impurity
      Code : VC180017
  • Cyproterone Acetate
    Chemical name : 6-Chloro-3,20-dioxo-1β,2β-dihydro-3′H-cyclopropa[1,2]pregna-1,4,6-trien-17-yl acetate
    Mol. Formula : C22H29ClO4
    Mol. Weight : 416.9g/mol
    • Cyproterone Impurity I
      Code : VC170001
      Chemical name : 6-chloro-3,20-dioxopregna-1,4,6-trien-17-yl acetate (delmadinone acetate).
    • Cyproterone Impurity F
      Code : VC170002
      Chemical name : 6-chloro-17-hydroxy-1b,2b-dihydro-3¢H-cyclopropa[1,2]pregna-1,4,6-trien-3,20-dione
  • Cinnarizine (EP/BP)
    Chemical name : (E)-1-(Diphenylmethyl)-4-(3-phenylprop-2-enyl)piperazine
    Mol. Formula : C26H28N2
    Mol. Weight : 368.514 g/mol
    • Cinnarizine Impurity-A(EP/BP):(Benzhydrylpiperazine)
      Code : VC160001
      Chemical name : 1-(diphenylmethyl)piperazine
    • Cinnarizine Impurity-C(EP/BP)
      Code : VC160002
      Chemical name : (4-(Diphenylmethyl)-1,1-bis[(E)- 3-phenylprop-2-enyl]piperazinium Chloride
    • Cinnarizine Impurity-E(EP/BP)
      Code : VC160003
      Chemical name : 1,4-Bis(diphenylmethyl)piperazine Hydrochloride Salt
    • Cinnarizine Impurity-B(EP/BP)
      Code : VC160004
      Chemical name : (Z)-1-(diphenylmethyl)-4-(3-phenylprop-2-enyl)piperazine
  • Cycloserine
    Chemical name : (4R)-4-amino-1,2-oxazolidin-3-one
    Mol. Formula : C3H6N2O2
    Mol. Weight : 102.09 g/mol
    • D - Serine
      Code : VC150001
      Chemical name : D-2-Amino-3-hydroxypropanoic acid (D-Serine)
    • D – Serine Methyl Ester Hydrochloride
      Code : VC150002
      Chemical name : D-2-Amino-3-hydroxypropanoic acid methyl ester hydrochloride
    • Cycloserine Dimer: (Cycloserine Diketo-piperazine)
      Code : VC150003
      Chemical name : 3,6-bis[(aminooxy)methyl]piperazine-2,5-dione
    • L-Cycloserine
      Code : VC150005
      Chemical name : (S)-4-Amino-3-isoxazolidone
    • Cycloserine 3-Chloro-D-alanine methyl ester hydrochloride
      Code : VC150006
      Chemical name : β-Chloro-D-alanine methyl ester hydrochloride
  • Cyproheptadine Hydrochloride (Cycloheptadiene)
    Chemical name : 4-(5H-dibenzo[a,d]cyclohepten-5-ylidene)-1-methylpiperidine hydrochloride
    Mol. Formula : C21H21N,HCl,1½H2O
    Mol. Weight : 350.9 g/mol
    • Cyproheptadine EP Impurity A:(USP RC A)
      Code : VC140001
      Chemical name : 5H-dibenzo[a,d][7] annulene (Dibenzocycloheptane)
    • Cyproheptadine EP Impurity B
      Code : VC140002
      Chemical name : 10,11-dihydro-5H-dibenzo[a,d][7]annulen-5-one
    • Cyproheptadine EP Impurity C*(USP RC C*)
      Code : VC140003
      Chemical name : 5-(1-methylpiperidin-4-yl)-5H-dibenzo[a,d][7]annulen-5-ol hydrochloride
    • Cyproheptadine Hydrochloride Impurity
      Code : VC140004
      Chemical name : 5H-dibenzo[a,d][7]annulen-5-one
  • Carisoprodol (BP/EP)
    Chemical name : 2-{[(aminocarbonyl)oxy]methyl}-2-methylpentyl isopropylcarbamate
    Mol. Formula : C12H24N2O4
    Mol. Weight : 260.33 g/mol
    • Carisoprodol impurity-C
      Code : VC130002
      Chemical name : 2-methyl-2-propylpropane-1,3-diol
    • Carisoprodol impurity-D(BP/EP)
      Code : VC130001
      Chemical name : [2-(carbamoyloxymethyl)-2-methyl-pentyl] carbamate or (meprobamate)
  • Clonidine Hydrochloride
    Chemical name : 2-(2,6-dichlorophenylamino)-2-imidazoline hydrochloride
    Mol. Formula : C9H9Cl2N3, HCl
    Mol. Weight : 266.6 g/mol
    • Clonidine Impurity-A(BP)
      Code : VC120001
      Chemical name : 1-acetylimidazolidin-2-one
    • Clonidine Impurity-B(BP): (USP RCA)(Acetylclonidine)
      Code : VC120002
      Chemical name : 1-{4-[(2,6-dichlorophenyl)amino]-2,5-dihydro-1H-imidazol-1-yl}ethanone; 1-acetyl-2-[(2,6-dichlorophenyl)amino]-4,5-dihydro-1H-imidazole
    • Clonidine Impurity-C(BP)
      Code : VC120003
      Chemical name : 2,6-dichloroaniline
    • N-(2,6-dichlorophenyl)formamide
      Code : VC120005
    • Clonidine Impurity
      Code : VC120006
      Chemical name : (2,6-dichlorophenyl)- Carbonimidic dichloride
  • Cyclobenzaprine HCl
    Chemical name : 3-(5H-dibenzo[a,d]cyclohepten-5-ylidene)- N,N-dimethyl-1-propanamine
    Mol. Formula : C20H21N.HCl
    Mol. Weight : 311.85 g/mol
    • Cyclobenzaprine Impurity-A
      Code : VC110001
      Chemical name : 5H-dibenzo[a,d][7]annulen-5-one
    • Cyclobenzaprine Impurity-C: (Dibenzosuberone)
      Code : VC110002
      Chemical name : 10,11-dihydro-5H-dibenzo[a,b][7]annulen-5-one
    • Cyclobenzaprine Impurity-D
      Code : VC110003
      Chemical name : 3-(10,11-dihydro-5H-ibenzo[a,d][7] annulen-5-ylidene)-N,N-dimethylpropan-1-amine HCl
    • Cyclobenzaprine-d3 Hydrochloride
      Code : VC110004
      Chemical name : 3-(5H-Dibenzo[a,d]cyclohepten-5-ylidene)-N-methyl-N-(methyl-d3)-1-propanamine Hydrochloride
    • N-desmethyl cyclobenzaprine HCl (USP RCB)
      Code : VC110005
      Chemical name : 3-(5H-Dibenzo[a,d]cyclohepten-5-ylidene)-N-methyl-1-propanamine hydrochloride
  • Cetirizine(EP/BP)
    Chemical name : (±)-[2-[4-[(4-chlorophenyl) phenylmethyl]-1- piperazinyl]ethoxy]acetic acid
    Mol. Formula : C21H25ClN2O3
    Mol. Weight : 388.89 g/mol
    • Cetirizine Impurity-A(EP/BP)
      Code : VC100001
      Chemical name : (RS)-1-[(4-chlorophenyl)phenyl methyl]piperazine
    • Cetirizine Impurity-B(EP/BP)
      Code : VC100002
      Chemical name : (RS)-2-[4-[(4-chlorophenyl)phenyl methyl]piperazin-1-yl]acetic acid
    • Cetirizine Impurity-C(EP/BP)
      Code : VC100003
      Chemical name : (RS)-2-[2-[4-[(2-chlorophenyl) phenylmethyl] piperazin-1-yl]ethoxy]acetic acid
    • Cetirizine Impurity-D(EP/BP)
      Code : VC100004
      Chemical name : 1,4-bis[(4-chlorophenyl) phenylmethyl] piperazine
    • Cetirizine Impurity-E(EP/BP)
      Code : VC100005
      Chemical name : (RS)-2-[2-[2-[4-[(4-chloro phenyl) phenyl methyl]piperazin-1-yl] ethoxy acetic acid (ethoxycetirizine)
    • Cetirizine Impurity-F(EP/BP): (Deschloro Cetrizine Dihydrochloride)
      Code : VC100006
      Chemical name : [2-[4-(diphenylmethyl) piperazin-1-yl]ethoxy]acetic acid,
    • Cetirizine Lactose Ester
      Code : VC100007
      Chemical name : Cetirizine Lactose Ester (α/β-mixture, mixture of diastereomers)
    • Cetirizine Ethyl Ester (USP RC A)
      Code : VC100008
      Chemical name : (RS)-2-[2-[4-[(4-Chlorophenyl) phenylmethyl]piperazin-1-yl]ethoxy]acetic acid ethyl ester dihydrochloride
    • Cetirizine Methyl Ester
      Code : VC100009
      Chemical name : Methyl 2-[2-[4-[(4-Chlorophenyl) phenylmethyl]-1-piperazinyl]ethoxy]acetate
    • 4-Chlorobenzophenone
      Code : VC100010
      Chemical name : p-Chlorobenzophenone
    • 4-Chlorobenzhydrol
      Code : VC100011
      Chemical name : p-chloro benzhydrol
    • Cetirizine N-Oxide
      Code : VC100013
      Chemical name : 2-(2-{4-[(4-chlorophenyl) (phenyl) methyl]piperazin-1-yl}ethoxy)acetic acid n-oxide
    • Cetirizine 3-Chloro Impurity
      Code : VC100014
      Chemical name : -(2-(4-((3-chlorophenyl)(phenyl)methyl)piperazin-1-yl)ethoxy)acetic acid hydrochloride
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