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Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate

Also known as: Bz-RS-iSer(3-Ph)-OMe, Methyl (2R,3S)-N-benzoyl-3-phenylisoserinate, Methyl (-)-(2R,3S)-3-benzoylamino-2-hydroxy-3-phenylpropionate, PACLITAXEL SIDE CHAIN 4, PACLITAXEL SIDE CHAIN NO 4, C-13 SIDE CHAIN FOR PACLITAXEL II, MFCD00673331

Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate (CAS 32981-85-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C17H17NO4 and a molecular weight of 299.321 g/mol. Key properties include a boiling point of 540.3±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 280.6±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
32981-85-4
Jingsj CID
J-1972966-9
Molecular Formula
C17H17NO4
Molecular Weight
299.321 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point540.3±50.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point280.6±30.1 °C
Exact Mass299.115753
PSA75.63000
LogP2.90
Vapor Pressure0.0±1.5 mmHg at 25°C
Refractive Index1.588
Storage Conditions-20℃

Activity & Biological Data

Additional Information[1]. Krawczyk E, et al. Cytotoxic, antiviral (in-vitro and in-vivo), immunomodulatory activity and influence on mitotic divisions of three taxol derivatives: 10-deacetyl-baccatin III, methyl (N-benzoyl-(2'R,3'S)-3'-phenylisoserinate) and N-benzoyl-(2'R,3'S)-3'-phenylisoserine. J Pharm Pharmacol. 2005;57(6):791‐797.

Customs & Trade Information

HS Code2924299090
Summary2924299090. other cyclic amides (including cyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate?

The CAS number of Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate is 32981-85-4.

What are the molecular formula and molecular weight of Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate?

Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate has molecular formula C17H17NO4 and molecular weight 299.321 g/mol.

What are the upstream and downstream products of Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate?

For Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate, Upstream Products: Benzoyl chloride, Diazomethane, (2R,3S)-3-Benzamido-2-hydroxy-3-phenylpropanoic acid; Downstream Products: Paclitaxel, Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate, (2R,3S)-3-Benzamido-2-hydroxy-3-phenylpropanoic acid.

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

Last updated:

How to cite: Jingsj. "Methyl (2R,3S)-3-(benzoylamino)-2-hydroxy-3-phenylpropanoate (CAS 32981-85-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1972966-9 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.