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Oxytetracycline EP Impurity A/4-epi-Oxytetracycline/(4R,4aR,5S,5aR,6S,12aS)-4-(Dimethylamino)-3,5,6,10,12,12a-hexahydroxy-6-methyl- 1,11-dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide 14206-58-7 马上询价
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Oxytetracycline EP Impurity B/Tetracycline/(4S,4aS,5aS,6S,12aS)-4-(Dimethylamino)-3,6,10,12,12a-pentahydroxy-6-methyl-1,11- dioxo-1,4,4a,5,5a,6,11,12a-octahydrotetracene-2-carboxamide 60-54-8 马上询价
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Oxytetracycline EP Impurity C/α-Apo-Oxytetracycline/(4S,4aR,5S,5aR,6R,12aS)-2-Acetyl-4-(dimethylamino)-3,5,10,12,12a-pentahydroxy-6-methyl-4a,5a,6,12a-tetrahydrotetracene-1,11(4H,5H)-dione 6542-44-5 马上询价
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Oxytetracycline EP Impurity D/(3S,4S,5S)-4-((R)-4,5-dihydroxy-9-methyl-3-oxo-1,3-dihydronaphtho[2,3-c]furan-1-yl)-3-(dimethylamino)-2,5-dihydroxy-6-oxocyclohex-1-enecarboxamide 18695-01-7 马上询价
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Oxytetracycline EP Impurity E/β-Apo-Oxytetracycline/(3S,4S,5R)-4-[(1R)-4,5-Dihydroxy-9-methyl-3-oxo-1,3-dihydronaphtho[2,3-c]furan-1-yl]-3-(dimethylamino)-2,5-dihydroxy-6-oxocyclohex-1-enecarboxamide 18751-99-0 马上询价
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Anhydro Abiraterone/17-(Pyridin-3-yl)androsta-3,5,16-triene 154229-20-6 马上询价
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Abiraterone Acetate 5,6-Epoxide/(3β,5α,6α)-5,6-epoxy-17-(3-pyridinyl)-3-androst-16-en-3-ol-3-acetate 1868064-50-9 马上询价
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Abiraterone 5,6-Dihydro Impurity/17-(3-Pyridinyl)-(3β,5α)-Androst-16-en-3-ol 219843-75-1 马上询价
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Abiraterone Acetate 5,6-Dihydro Impurity/17-(3-Pyridinyl)-(3β,5α)-Androst-16-en-3-ol acetate 219843-76-2 马上询价
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Abiraterone 3-Oxo 4,5-Dihydro Impurity/(8R,9S,10R,13S,14S)-10,13-Dimethyl-17-(pyridin-3-yl)-1,7,8,9,10,11,12,13,14,15-decahydro-2H-cyclopenta[a]phenanthren-3(6H)-one 154229-21-7 马上询价
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Paclitaxel impurity 21/10-Deacetyl Cephalomannine/(αR,βS)-α-Hydroxy-β-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]amino]benzenepropanoic Acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-(Acetyloxy)-12-(benzoyloxy)- 2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,6,11- 76429-85-1 马上询价
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Paclitaxel impurity 22/10-Deacetyl-2-Debenzoyl-2-Tigloyl-Baccatin III/(2E)-2-Methyl-2-butenoic Acid (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)- 12b-(acetyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,6,9,11-tetrahydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11- 171926-87-7 马上询价
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Paclitaxel impurity 23/10-Deacetyl-13-Oxo-Baccatin III/10-Deacetyl-13-oxobaccatin III/(2aR,4S,4aS,6R,11S,12S,12aR,12bS)-12b-(Acetyloxy)-12-(benzoyloxy)-2a,4,4a,10,11,12,12a,12b-octahydro-4,6,11-trihydroxy-4a,8,13,13-tetramethyl-7,11-methano-1H-cyclodeca[3 92950-42-0 马上询价
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Paclitaxel impurity 24/7,10,13-Tri-O-trichloroethoxycarbonyl-10-deacetyl Baccatin III 110258-92-9 马上询价
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Paclitaxel impurity 4/10-Deacetyl Paclitaxel Ethyl Analogue/N-Debenzoyl-N-propanoyl-10-deacetylpaclitaxel/(2aR,4S,4aS,6R,9S,11S,12S, 12aR,12bS)-12b-Acetoxy-4,6,11-trihydroxy-9-(((2R,3S)-2-hydroxy-3-phenyl-3-propionamidopropanoyl)oxy)-4a,8,13,13-tetramethy 173101-59-2 马上询价
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Paclitaxel impurity 5/10-Deacetyl Paclitaxel Propyl Analogue/N-Debenzoyl-N-butanoyl-10-deacetylpaclitaxel/(2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-12b-Acetoxy-9-(((2R,3S)-3-butyramido-2-hydroxy-3-phenylpropanoyl)oxy)-4,6,11-trihydroxy-4a,8,13,13-tetramethyl-5 173101-47-8 马上询价
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