Cephalomannine

三尖杉宁碱

Also known as: Taxol B, NSC 318735, Paclitaxel EP Impurity B, Paclitaxel Related Compound A, (2α,5β,7β,10β,13α)-4,10-Diacetoxy-1,7-dihydroxy-13-{[(2R,3S)-2-hydroxy-3-{[(2E)-2-methyl-2-butenoyl]amino}-3-phenylpropanoyl]oxy}-9-oxo-5,20-epoxytax-11-en-2-yl benzoate, Benzenepropanoic acid, α-hydroxy-β-[[(2E)-2-methyl-1-oxo-2-buten-1-yl]amino]-, (2aR,4S,4aS,6R,9S,11S,12S,12aR,12bS)-6,12b-bis(acetyloxy)-12-(benzoyloxy)-2a,3,4,4a,5,6,9,10,11,12,12a,12b-dodecahydro-4,11-dihydroxy-4a,8,13,13-tetramethyl-5-oxo-7,11-methano-1H-cyclodeca[3,4]benz[1,2-b]oxet-9-yl ester, (αR,βS)-

Cephalomannine (CAS 71610-00-9) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C45H53NO14 and a molecular weight of 831.901 g/mol. It is also known as Taxol B, NSC 318735 and Paclitaxel EP Impurity B. Key properties include a melting point of 139-141ºC, a boiling point of 929.5±65.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 516.0±34.3 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

71610-00-9

Jingsj CID

J-1959756-2

Molecular Formula

C₄₅H₅₃NO₁₄

Chinese Name

三尖杉宁碱

Molecular Weight

831.901 g/mol

Category

Organic Bases

Last updated

8/21/2026