(4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid

Also known as: (4S,5R)-3-tert-Butoxycarbony-2-(4-anisyl)-4-phenyl-5-oxazolidinecarboxylic acid, (4S,5R)-2-(4-Methoxyphenyl)-4-phenyl-3,5-oxazolidinedicarboxylic acid 3-tert-butyl ester, (4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyl-1,3-oxazolidine-5-carboxylic acid, Side chain of docetaxel, (2*,4S,5R)-N-tert-butoxycarbonyl-2-(4'-methoxy)phenyl-4-phenyl-1,3-oxazolidine-5-formic acid

(4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid (CAS 196404-55-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H25NO6 and a molecular weight of 399.437 g/mol. Key properties include a melting point of 134-138ºC, a boiling point of 573.8±50.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 300.8±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 196404-55-4
Jingsj CID: J-1511509-0
Molecular Formula: C₂₂H₂₅NO₆
Molecular Weight: 399.437 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	134-138ºC
Boiling Point	573.8±50.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	300.8±30.1 °C
Exact Mass	399.168182
PSA	85.30000
LogP	4.20
Vapor Pressure	0.0±1.7 mmHg at 25°C
Refractive Index	1.568
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of (4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid?

The CAS number of (4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid is 196404-55-4.

What are the molecular formula and molecular weight of (4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid?

(4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid has molecular formula C22H25NO6 and molecular weight 399.437 g/mol.

What are the upstream and downstream products of (4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid?

For (4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid, Upstream Products: Di-tert-butyl dicarbonate, Methyl (2R,3S)-N-tert-butoxycarbonyl-3-phenylisoserinate; Downstream Products: Cabazitaxel.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(4S,5R)-3-(tert-Butoxycarbonyl)-2-(4-methoxyphenyl)-4-phenyloxazolidine-5-carboxylic acid (CAS 196404-55-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511509-0 (accessed 2026-11-09).

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