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

  • Diphenhydramine Hydrochloride
    Chemical name : 2-(Diphenylmethoxy)-N,N-dimethylethanamine hydrochloride
    Mol. Formula : C17H22ClNO
    Mol. Weight : 291.8 g/mol
    • Diphenhydramine EP Impurity B
      Code : VD440003
      Chemical name : (R,S)-N,N-dimethyl-2-(phenyl(p-tolyl)methoxy)ethanamine hydrochloride
    • Diphenhydramine EP Impurity C
      Code : VD440004
      Chemical name : (R,S)-2-((4-bromophenyl)(phenyl)methoxy)-N,N-dimethylethanamine hydrochloride
    • Diphenhydramine EP Imp D(Benzyhydrol)
      Code : VD440001
      Chemical name : diphenylmethanol
    • Diphenhydramine EP Imp E(Benzophenone)
      Code : VB110000
      Chemical name : diphenylmethanone
    • Diphenhydramine USP RC A
      Code : VD440002
      Chemical name : 2-(benzhydryloxy)-N-methylethanamine hydrochloride
  • Dipyridamole
    Chemical name : Natyl;Piroan;Apricor;Anginal
    Mol. Formula : C24H40N8O4
    Mol. Weight : 504.63 g/mol
    • Dipyridamole EP Imp- A
      Code : VD430001
    • Dipyridamole EP Imp- B
      Code : VD430002
    • Dipyridamole EP Imp- C
      Code : VD430003
      Chemical name : 2,2-[[2-Chloro-4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidin-6-yl]nitrilo]diethanol ;
    • Dipyridamole EP Imp- D
      Code : VD430004
    • Dipyridamole EP Imp-E
      Code : VD430005
      Chemical name : 2,4-Di[di(2-hydroxyethyl)amino]-6,8-di(piperidin-1-yl)-pyrimido[5,4-d]pyrimidine ;
    • Dipyridamole EP Imp-F
      Code : VD430006
      Chemical name : 2,6-Di[di(2-hydroxyethyl)amino]-4-(2-hydroxyethyl)amino-8-(piperidin-1-yl)-pyrimido[5,4-d]pyrimidine
    • Dipyridamole EP Imp-G
      Code : VD430007
      Chemical name : 2,6-Dichloro-4,8-di(piperidin-1-yl)-pyrimido[5,4-d]pyrimidine
    • Dipyridamole Imp-I
      Code : VD430009
      Chemical name : 4-(2-((6-(bis(2-hydroxyethyl)amino)-4,8-di(piperidin-1-yl)pyrimido[5,4-d]pyrimidin-2-yl)(2-hydroxyethyl)amino)ethoxy)-2,3-dihydroxy-4-oxobutanoic acid
    • Dipyridamole d20
      Code : VD430010
      Chemical name : 2,2’,2’’,2’’’-[(4,8-Di-1-piperidinyl-d20-pyrimido [5,4-d]pyrimidine-2,6-diyl)dinitrilo]tetrakis-ethanol
  • Dobutamine Hydrochloride
    Chemical name : (RS)-4-[2-[[3-(4-Hydroxyphenyl)-1- methylpropyl]amino]ethyl]benzene-1,2-diol hydrochloride
    Mol. Formula : C18H24ClNO3
    Mol. Weight : 337.84 g/mol
    • Dobutamine EP Imp A
      Code : VD030001
      Chemical name : Dopamine hydrochloride; 4-(2- aminoethyl)benzene-1,2-diol
    • Dobutamine EP Imp B
      Code : VD030002
      Chemical name : 4-(4-hydroxyphenyl)butan-2-one
    • Dobutamine EP Imp C
      Code : VD030003
      Chemical name : (2RS)-N-[2-(3,4-dimethoxyphenyl) ethyl]-4-(4-methoxyphenyl)butan-2-amine
  • Dolasetron
    Chemical name : (3R)-10-oxo-8-azatricyclo[5.3.1.03,8]undec-5-yl 1H-indole-3-carboxylate
    Mol. Formula : C19H20N2O3
    Mol. Weight : 324.374 g/mol
    • Dolasetron intermediate : (3-Cyclopentene-1-carboxylic Acid)
      Code : VD520001
      Chemical name : Cyclopentene-1-Carboxylic acid
  • Domperidone
    Chemical name : 5-Chloro-1-[1-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]piperidin-4-yl]-1,3-dihydro- 2H-benzimidazol-2-one
    Mol. Formula : C22H24ClN5O2
    Mol. Weight : 452.9 g/mol
    • Domperidone EP Impurity A
      Code : VD090001
      Chemical name : 5-chloro-1-(piperidin-4-yl)-1,3-dihydro-2H-benzimidazol-2-one
    • Domperidone EP Impurity B
      Code : VD090002
      Chemical name : 4-(5-chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-formylpiperidine
    • Domperidone EP Impurity C
      Code : VD090003
      Chemical name : cis-4-(5-chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)-1-[3-(2-oxo-2,3-dihydro-1H benzimidazol-1-yl)propyl]piperidine 1-oxide
    • Domperidone EP Impurity D
      Code : VD090004
      Chemical name : 5-Chloro-3-[3-(2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]-1-[1-[3-(2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)propyl]piperidin-4-yl]-1,3-dihydro-2H-benzimidazol-2-one.
    • Domperidone EP Impurity E
      Code : VD090005
      Chemical name : 1-[3-[4-(5-chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl]propyl]-3-[3-(2- oxo-2,3-dihydro-1H-benzimidazol-1-yl)propyl]-1,3-dihydro-2H-benzimidazol-2-one.
    • Domperidone EP Impurity F
      Code : VD090006
      Chemical name : 1,3-bis[3-[4-(5-Chloro-2-oxo-2,3-dihydro-1H-benzimidazol-1-yl)piperidin-1-yl]propyl]-1,3-dihydro-2H-benzimidazol-2-one
    • Domperidone d6
      Code : VD090007
      Chemical name : 5-Chloro-1-[1-[3-(2,3-dihydro-2-oxo-1H-benzimidazol-1-yl)propyl]-4-piperidinyl]-1,3-dihydro-2H-benzimidazol-2-one-d6
    • Domperidone Maleate
      Code : VD090008
      Chemical name : 5-Chloro-1-[1-[3-(2-oxo-1,3-dihydrobenzoimidazol-1-yl)propyl]-4-piperidyl]-1,3-dihydrobenzoimidazol-2-one maleate
  • Donepezil Hydrochloride
    Chemical name : (±)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone hydrochloride
    Mol. Formula : C24H30ClNO3
    Mol. Weight : 415.95g/mol
    • Deoxy Donepezil Hydrochloride: (USP E)
      Code : VD040001
      Chemical name : 4-[(2,3-Dihydro-5,6-dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine Hydrochloride
    • Dehydrodeoxy Donepezil
      Code : VD040002
      Chemical name : 4-[(5,6-Dimethoxy-1H-inden-2-yl)methyl]-1-(phenylmethyl)piperidine; 1-Benzyl-4-(5,6-dimethoxy-1H-2-indenylmethyl)piperidine;
    • Desbenzyl Donepezil: (Donepezil Imp I)
      Code : VD040003
      Chemical name : 5,6-Dimethoxy-2-(piperidine-4-ylmethyl) indan-1-one * Hydrochloride Salt
    • 5-O-Desmethyl Donepezil
      Code : VD040004
      Chemical name : 1-Benzyl-4-[(5-hydroxy-6-methoxy-1- oxo-indan-2-yl)methylpiperidine
    • Donepezil N-Oxide
      Code : VD040005
      Chemical name : (2-[(1-Benzylpiperidin-4-yl)methyl]-5,6-dimethoxyindan-1-one N-oxide)
    • 6-O-Desmethyl Donepezil
      Code : VD040006
      Chemical name : 1-Benzyl-4-[(6-hydroxy-5-methoxy-1-oxo-indan-2-yl)methylpiperidine
    • Donepezil Impurity:(USP Imp b) Donepezil Pyridine Analog Impurity
      Code : VD040007
      Chemical name : 5,6-Dimethoxy-2-(4-pyridylmethyl)-1-indanone
    • Donepezil Impurity
      Code : VD040008
      Chemical name : 2,3-Dihydro-5,6-dimethoxy-2-(4-piperidinylmethylene)-1H-inden-1-one
    • Donepezil Impurity
      Code : VD040009
      Chemical name : 5,6-Dimethoxy-2-[(4-piperidyl)methyl]indane
    • Donepezil Impurity (Indanone Impurity)
      Code : VD040010
      Chemical name : 5,6-dimethoxy-2,3-dihydro-1H-inden-1-one
    • Donepezil Open ring Impurity
      Code : VD040011
      Chemical name : -(3-(1-Benzylpiperidin-4-yl)-2-oxopropyl)-4,5-dimethoxybenzoic Acid
    • Donepezil Benzyl bromide Impurity:(USP c)
      Code : VD040013
      Chemical name : 1,1-Dibenzyl-4-[(5,6-dimethoxy-1-oxo-2,3-dihydro-1H-inden-2yl)methyl]piperidinium bromide
    • Hydroxy Donepezil
      Code : VD040014
      Chemical name : (2-[(1-Benzylpiperidin-4-yl)(hydroxy)methyl]-5,6-dimethoxyindan-1-one)
    • Donepezil
      Code : VD040015
      Chemical name : (±)-2-[(1-Benzyl-4-piperidyl)methyl]-5,6-dimethoxy-1-indanone
    • Donepezil-d4 Hydrochloride
      Code : VD040016
      Chemical name : (±)-Donepezil-d4 Hydrochloride (bis-methylene-d4)
    • Donepezil USP RC A
      Code : VD040021
      Chemical name : ((E)-2-[(1-benzylpiperidin-4-yl)methylene]-5,6-dimethoxyindan-1-one
    • Donapezile unkown Impurity
      Code : VD040022
      Chemical name : (E)-5,6-dimethoxy-2-((1-methylpiperidin-4-yl)methylene)-2,3-dihydro-1H-inden-1-one
    • Donepezil Alkene Pyridine N-oxide
      Code : VD040023
      Chemical name : (E)-4-((5,6-dimethoxy-1-oxo-1H-inden-2(3H)-ylidene)methyl)pyridine 1-oxide
    • 3-Hydroxy Donepezil
      Code : VD040024
      Chemical name : 2-((1-benzylpiperidin-4-yl)methyl)-3-hydroxy-5,6-dimethoxy-2,3-dihydro-1H-inden-1-one
  • Dopamine HCl
    Chemical name : 4-(2-Aminoethyl)benzene-1,2-diol hydrochloride
    Mol. Formula : C8H11NO2,HCl
    Mol. Weight : 189.6 g/mol
    • 3-O-Methyldopamine HCl
      Code : VD460002
      Chemical name : 4-(2-Aminoethyl)-2-methoxyphenol Hydrochloride
    • 4-O-Methyldopamine HCl
      Code : VD460003
      Chemical name : 3-Hydroxy-4-methoxyphenethylamine Hydrochloride
  • Dorzolamide Hydrochloride
    Chemical name : (4S,6S)-4-(Ethylamino)-5,6-dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-Dioxide Hydrochloride;
    Mol. Formula : C10H17ClN2O4S3
    Mol. Weight : 360.9 g/mol 
    • Dorzolamide USP RC A
      Code : VD380001
      Chemical name : (4R,6R)-4-(ethylamino)-6-methyl-4,5,6,7a-tetrahydro-3aH-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide
    • Dorzolamide USP RC B
      Code : VD380003
      Chemical name : ((4R,6S)-4-(Ethylamino)-6-methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-2-sulfonamide 7,7-dioxide hydrochloride
  • Dothiepin (Dosuleptin) Hydrochloride
    Chemical name : (E)-3-(Dibenzo[b,e]thiepin-11(6H)-ylidene)-N,N-dimethylpropan-1-amine hydrochloride
    Mol. Formula : C19H21NSHCl
    Mol. Weight : 331.9 g/mol
    • Dothiepin EP Imp B
      Code : VD350001
      Chemical name : dibenzo[b,e]thiepin-11(6H)-one; 6,11-dihydrodibenzo[b,e]thiepin-11-one
  • Doxazosin Mesilate
    Chemical name : 1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[(2RS)-2,3-dihydro-1,4-benzodioxin-2- ylcarbonyl]piperazine methanesulfonate.
    Mol. Formula : C23H25N5O5,CH3SO3H
    Mol. Weight : 547.6 g/mol 
    • Doxazosin USP RC A
      Code : VD590003
      Chemical name : 1-(2,3-Dihydro-1,4-benzodioxin-2-ylcarbonyl)piperazine hydrochloride
    • Doxazosin USP RC B
      Code : VD590002
      Chemical name : 6,7-Dimethoxy-2,4(1H,3H)-quinazolinedione;
    • Doxazosin USP RC C
      Code : VD590004
      Chemical name : 2-Chloro-6,7-dimethoxy-4-quinazolinamine
    • Doxazosin USP RC D
      Code : VD590001
      Chemical name : 2,3-Dihydro-benzo[1,4]dioxine-2-carboxylic Acid
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