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

  • Leflunomide
    Chemical name : 5-methyl-N-[4-(trifluoromethyl)phenyl]-1,2-oxazole-4-carboxamide
    CAS Number : 75706-12-6
    Mol. Formula : C12H9F3N2O2
    Mol. Weight : 270.211 g/mol
    • Leflunomide EP Impurity A (USP RC A)
      Code : L140001
      Chemical name : 4-(trifluoromethyl)aniline
      Unit : 10mg, 20mg, 50mg,100mg,
    • Leflunomide EP Impurity B (USP RC B) (Teriflunomide)
      Code : L500007 (L500002)
      Chemical name : (2z)-2-Cyano-3-Hydroxy-N-[4-(Trifluoromethyl)phenyl]but-2-Enamide
      Unit : 10mg, 20mg, 50mg,100mg,
    • Leflunomide EP impurity C (RC C)
      Code : L500003
      Chemical name : 5-methyl-N-[3-(trifluoromethyl)phenyl]-1,2-oxazole-4-carboxamide
      Unit : 10mg, 20mg, 50mg,100mg,
    • Leflunomide EP Impurity D
      Code : L500010
      Chemical name : 5-methyl-1,2-oxazole-4-carboxylic acid
      Unit : 10mg, 20mg, 50mg,100mg,
    • Leflunomide EP impurity E
      Code : L500005
      Chemical name : 3-methyl-N-(4-(trifluoromethyl)phenyl)isoxazole-4-carboxamide
      Unit : 10mg, 20mg, 50mg,100mg,
    • Leflunomide EP Impurity F (RC F)
      Code : L500027
      Chemical name : 5-methyl-N-[2-(trifluoromethyl)phenyl]-1,2-oxazole-4-carboxamide
      Unit : 10mg, 20mg, 50mg,100mg,
    • Leflunomide EP impurity G
      Code : SP120500
      Chemical name : 5-methyl-N-(4-methylphenyl)-1,2-oxazole-4-carboxamide
      Unit : 10mg, 20mg, 50mg, 100mg
    • Leflunomide EP Impurity H (RC H)
      Code : L500006
      Chemical name : 2-cyano-N-[4-(trifluoromethyl)phenyl]acetamide
      Unit : 10mg, 20mg, 50mg, 100mg
    • Leflunomide Impurity (Ethyl 5-methylisoxazole-4-carboxylate)
      Code : L500001
      Chemical name : ethyl 5-methyl-1,2-oxazole-4-carboxylate
      Unit : 10mg, 20mg, 50mg, 100mg
  • Leflunomide D4
    • Leflunomide D4
      Code : L500026
      Chemical name : 5-Methylisoxazole-4-[4-trifluoromethylcarboxanilide]-d4
      Unit : 10mg, 20mg, 50mg,100mg,
    • Leonurine
      Chemical name : 4-(diaminomethylideneamino)butyl 4-hydroxy-3,5-dimethoxybenzoate
      Unit : 10mg, 20mg, 50mg,100mg,
  • Leonurine
    • Leonurine
      Chemical name : 4-(diaminomethylideneamino)butyl 4-hydroxy-3,5-dimethoxybenzoate
      Unit : 10mg, 20mg, 50mg,100mg,
  • Leonurine Hydrochloride
    • Leonurine Hydrochloride
      Code : QP0358
      Chemical name : 4-(diaminomethylideneamino)butyl 4-hydroxy-3,5-dimethoxybenzoate;hydrochloride
      Unit : 10mg, 20mg, 50mg,100mg,
  • Lercanidipine
    Chemical name : 5-O-[1-[3,3-diphenylpropyl(methyl)amino]-2-methylpropan-2-yl] 3-O-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
    CAS Number : 100427-26-7
    Mol. Formula : C36H41N3O6
    Mol. Weight : 611.739 g/mol
    • Lercanidipine Hydrochloride
      Chemical name : 5-O-[1-[3,3-diphenylpropyl(methyl)amino]-2-methylpropan-2-yl] 3-O-methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate;hydrochloride
      Unit : 10mg, 20mg, 50mg,100mg,
    • Lercanidipine Impurity Impurity A
      Chemical name : 1-[(3,3-Diphenyl-propyl)-methyl-amino]-2-methyl-propane-2-ol
      Unit : 10mg, 20mg, 50mg,100mg,
    • Lercanidipine Impurity Impurity C
      Chemical name : 3-Amino-but-2-enoic acid2-[(3,3-diphenyl-propyl)-methyl-amino]-1,1-dimethyl-ethyl ester
      Unit : 10mg, 20mg, 50mg,100mg,
    • Lercanidipine Impurity Impurity D (Dehydro Lercanidipine)
      Chemical name : 3-O-[1-[3,3-diphenylpropyl(methyl)amino]-2-methylpropan-2-yl] 5-O-methyl 2,6-dimethyl-4-(3-nitrophenyl)pyridine-3,5-dicarboxylate
      Unit : 10mg, 20mg, 50mg,100mg,
    • Lercanidipine Impurity Impurity E
      Chemical name : 2-[(3-nitrophenyl)methylene]-3-oxobutanoic acid,methyl ester
      Unit : 10mg, 20mg, 50mg,100mg,
    • Lercanidipine Impurity Impurity F
      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
      Unit : 10mg, 20mg, 50mg,100mg,
    • Lercanidipine Impurity Impurity G
      Chemical name : 2-(3-Nitro-phenyl)-4-hydroxy-4-methyl-6-oxo-cyclohexane-1,3-dicarboxylic acid dimethyl ester
      Unit : 10mg, 20mg, 50mg,100mg,
    • Lercanidipine Impurity Impurity H
      Chemical name : 2,6-Dimethyl-5-methoxycarbonyl-4-(3-nitrophenyl)-1,4-dihydro-pyridine-3-carboxylic acid
      Unit : 10mg, 20mg, 50mg,100mg,
  • Lercanidipine Dimethyl Ester Impurity
    • Lercanidipine Dimethyl Ester Impurity (M-Nifedipine)
      Chemical name : dimethyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate
      Unit : 10mg, 20mg, 50mg,100mg,
  • Letrozole
    Chemical name : 4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]benzonitrile
    CAS Number : 112809-51-5
    Mol. Formula : C17H11N5
    Mol. Weight : 285.31 g/mol
    • Letrozole EP Impurity A (RC A) (RC B)
      Code : LU1356971
      Chemical name : 4,4′-(4H-1,2,4-Triazol-4-yl methylene) dibenzonitrile.
      Unit : 10mg, 20mg, 50mg,100mg,
    • Letrozole EP Impurity B
      Chemical name : 4,4′,4′′-methanetriyltribenzonitrile
      Unit : 10mg, 20mg, 50mg,100mg,
    • Letrozole Impurity C
      Chemical name : 4-(1,2,4-triazol-1-ylmethyl)benzonitrile
      Unit : 10mg, 20mg, 50mg,100mg,
    • Letrozole Bromo Impurity
      Chemical name : 4-[(4-bromophenyl)-(1,2,4-triazol-1-yl)methyl]benzonitrile
      Unit : 10mg, 20mg, 50mg,100mg,
    • Letrozole-d4
      Chemical name : 4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]-2,3,5,6-tetradeuteriobenzonitrile
      Unit : 10mg, 20mg, 50mg,100mg,
  • Leuconolam
    • Leuconolam
      Code : QP0880
      Chemical name : Leuconolam
      Unit : 10mg, 20mg, 50mg,100mg,
  • Leucovorin
    • Leucovorin
      Chemical name : (2S)-2-[[4-[(2-amino-5-formyl-4-oxo-1,6,7,8-tetrahydropteridin-6-yl)methylamino]benzoyl]amino]pentanedioic acid
      Unit : 10mg, 20mg, 50mg,100mg,
  • Leucovorin Calcium
    • Leucovorin Calcium
      Code : LU1358004
      Chemical name : calcium;(2S)-2-[[4-[(2-amino-5-formyl-4-oxo-1,6,7,8-tetrahydropteridin-6-yl)methylamino]benzoyl]amino]pentanedioate
      Unit : 10mg, 20mg, 50mg,100mg,
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