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共有 52147 条记录
223776-49-6 (11β,16α,17α)-9-Chloro-17-(2,2-dioxido-5H-1,2-oxathiol-4-yl)-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methyl-androsta-1,4-dien-3-one; (11β,16α,17α)-9-Chloro-17-(2,2-dioxido-5H-1,2-oxathiol-4-yl)-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methyl-androsta-1,4-dien-3-one; 杂质-对照品 (2家)
1351617-74-7 (13alpha,14beta,17alpha,20S,21R,23R,24S)-24,25-环氧基-23-羟基-23-甲氧基-3-氧代羊毛甾-7-烯-21-醛环 21,23-(甲基乙缩醛) 21,23:24,25-Diepoxy-21,23- dimethoxytirucall-7-en-3-one 杂质-对照品 (3家)
1350800-76-8 (1aS,4S,6aR,7aS)-6-Amino-1,1a,4,6a,7,7a-hexahydro-4-(3-hydroxytricyclo[3.3.1.13,7]dec-1-yl)-3H-Cyclopropa[4,5]pyrrolo[1,2-a]pyrazin-3-one (1aS,4S,6aR,7aS)-6-Amino-1,1a,4,6a,7,7a-hexahydro-4-(3-hydroxytricyclo[3.3.1.13,7]dec-1-yl)-3H-Cyclopropa[4,5]pyrrolo[1,2-a]pyrazin-3-one 杂质-对照品 (2家)
171489-59-1 (1R,3R)-Methyl-1,2,3,4-tetrahydro-2-chloroacetyl-1-(3,4-methylenedioxyphenyl)-9H-pyrido[3,4-b]indole-3-carboxylate (Chloropretadalafil) (1R,3R)-Methyl-1,2,3,4-tetrahydro-2-chloroacetyl-1-(3,4-methylenedioxyphenyl)-9H-pyrido[3,4-b]indole-3-carboxylate (Chloropretadalafil) 杂质-对照品 (6家)
1235355-01-7 (1R,5S)-4-[(2-Bromo-4,5-dimethoxyphenyl)methyl]-4-[2-[2-(6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl)ethoxy]ethyl]morpholinium Bromide (1:1) (1R,5S)-4-[(2-Bromo-4,5-dimethoxyphenyl)methyl]-4-[2-[2-(6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl)ethoxy]ethyl]morpholinium Bromide (1:1) 杂质-对照品 (1家)
887130-68-9 Beclometasone Dipropionate EP Impurity E 6α,9-Dichloro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl dipropanoate    Beclometasone Dipropionate EP Impurity E 6α,9-Dichloro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl dipropanoate    杂质-对照品 (4家)
70356-03-5 (monohydrate) 53994-73-3 (anhydrous) Cefaclor (6R,7R)-7-[[(2R)-2-Amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monohydrate Cefaclor (6R,7R)-7-[[(2R)-2-Amino-2-phenylacetyl]amino]-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid monohydrate 杂质-对照品 (2家)
1988791-13-4 Chlorambucil EP Impurity E 4-[4-[[2-[[4-[4-[Bis(2-Chloroethyl)amino]phenyl]-butanoyl]oxy]ethyl](2-chloroethyl)amino]phenyl]butanoic acid Chlorambucil EP Impurity E 4-[4-[[2-[[4-[4-[Bis(2-Chloroethyl)amino]phenyl]-butanoyl]oxy]ethyl](2-chloroethyl)amino]phenyl]butanoic acid 杂质-对照品 (1家)
1186048-34-9 Betamethasone Dipropionate EP Impurity H 6α-Bromo-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl dipropanoate Betamethasone Dipropionate EP Impurity H 6α-Bromo-9-fluoro-11β-hydroxy-16β-methyl-3,20-dioxopregna-1,4-diene-17,21-diyl dipropanoate 杂质-对照品 (1家)
583840-04-4 Sorafenib N-Desmethyl N-Oxide 4-[4-[[[[4-Chloro-3-(trifluoromethyl)phenyl]amino]carbonyl]amino]phenoxy]-1-oxido-2-pyridinecarboxamide   Sorafenib N-Desmethyl N-Oxide 4-[4-[[[[4-Chloro-3-(trifluoromethyl)phenyl]amino]carbonyl]amino]phenoxy]-1-oxido-2-pyridinecarboxamide   杂质-对照品 (1家)
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