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Sitagliptin impurity 18/(S)-Sitagliptin N-Boc-Acid Impurity/(S)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic acid 922178-94-7 马上询价
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Sitagliptin impurity 19/(R)-Sitagliptin N-Boc-Acid Impurity/(R)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic acid 486460-00-8 马上询价
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Sitagliptin impurity 20/(R)-3-Boc-amino-4-phenylbutyric acid 101555-61-7 马上询价
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Sitagliptin impurity 21/(R)-Sitagliptin Methyl-Ester Impurity/methyl (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoate 881995-69-3 马上询价
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Sitagliptin impurity 22(R)-3-(tert-Butoxycarbonylamino)-4-(3,4-difluorophenyl)butanoic acid 269396-59-0 马上询价
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Sitagliptin impurity 23/(3R,3'R)-N,N'-(Ethane-1,2-diyl)bis(3-amino-4-(2,4,5-trifluorophenyl)butanamide) 1608491-98-0 马上询价
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Sitagliptin impurity 24/3-Amino-4-(2,4,5-trifluorophenyl)butanyl Sitagliptin/(R)-3-amino-N-((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)-4-(2,4,5-trifluorophenyl)butanamide 2072867-07-1 马上询价
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Sitagliptin impurity 25/3-amino-4-(3,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one hydrochloride 1334244-24-4 马上询价
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Sitagliptin impurity 26/Sitagliptin Desfluoro Impurity/3-amino-4-(2-fluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one 945261-45-0 马上询价
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Sitagliptin impurity 27/3-amino-4-(3-fluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one hydrochloride 945261-46-1 马上询价
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Sitagliptin impurity 28 945261-47-2 马上询价
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Sitagliptin impurity 32 1840966-95-1 马上询价
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Sitagliptin impurity 33 1879926-11-0 马上询价
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Sitagliptin impurity 35/5-(2-(2,5-difluorophenyl)-1-hydroxyethylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione 764667-66-5 马上询价
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Sitagliptin impurity 37/(R)-3-Amino-4-(2,4,5-trifluorophenyl)butyric acid hydrochloride 1204818-19-8 马上询价
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Sitagliptin impurity 38/(E)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a] pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-3-en-1-one 1675201-14-5 马上询价
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