13-Acetyl-9-dihydrobaccatin III

13-乙酰基-9-羟基巴卡丁III

Also known as: 9-Dihydro-13-acetylbaccatin III, 9-DHAB III, 13-Acetyl-9-dihydrobacatin-Ⅲ, Cabazitaxel Impurity 55, Cephalomannine Impurity 1, 19-DHB, 7,9-Dideacetylbaccatin VI, (2aR,4S,4aS,5R,6R,9S,11S,12S,12aR,12bS)-12-(benzoyloxy)-4,5,11-trihydroxy-4a,8,13,13-tetramethyl-3,4,4a,5,6,9,10,11,12,12a-decahydro-1H-7,11-methanocyclodeca[3,4]benzo[1,2-b]oxete-6,9,12b(2ah)-triyl triacetate, (1β,5β,7β,9α,10β,13α)-1,7,9-Trihydroxy-5,20-epoxytax-11-ene-4,10,13-triyl triacetate

13-Acetyl-9-dihydrobaccatin III (CAS 142203-65-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C33H42O12 and a molecular weight of 630.68 g/mol. It is also known as 9-Dihydro-13-acetylbaccatin III, 9-DHAB III and 13-Acetyl-9-dihydrobacatin-Ⅲ. Key properties include a boiling point of 601.4±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 193.0±25.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
142203-65-4
Jingsj CID
J-1504-0
Molecular Formula
C33H42O12
Chinese Name
13-乙酰基-9-羟基巴卡丁III
Molecular Weight
630.68 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point601.4±55.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point193.0±25.0 °C

Frequently Asked Questions

What is the CAS number of 13-Acetyl-9-dihydrobaccatin III?

The CAS number of 13-Acetyl-9-dihydrobaccatin III is 142203-65-4.

What are the molecular formula and molecular weight of 13-Acetyl-9-dihydrobaccatin III?

13-Acetyl-9-dihydrobaccatin III has molecular formula C33H42O12 and molecular weight 630.68 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "13-Acetyl-9-dihydrobaccatin III (CAS 142203-65-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504-0 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.