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(4S,2RS)-2-Methylthiazolidine-4-carboxylic acid

(4S,2RS)-2-甲基噻唑烷-4-羧酸

Also known as: (4S)-2-methyl-1,3-thiazolidine-4-carboxylic acid, (4S,2RS)-2-Methylthiazolidine-4-carboxylic acid, 97%, 4-Thiazolidinecarboxylic acid, 2-methyl-, (4S)-, 4-Thiazolidinecarboxylicacid,2-methyl-,(4S)-(9CI)

(4S,2RS)-2-Methylthiazolidine-4-carboxylic acid (CAS 205985-91-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H9NO2S and a molecular weight of 147.19500 g/mol. It is also known as (4S)-2-methyl-1,3-thiazolidine-4-carboxylic acid, (4S,2RS)-2-Methylthiazolidine-4-carboxylic acid, 97% and 4-Thiazolidinecarboxylic acid, 2-methyl-, (4S)-. Key properties include a melting point of 180-185ºC, a boiling point of 333ºC at 760 mmHg, a density of 1.263g/cm3 and a flash point of 155.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
205985-91-7
Jingsj CID
J-25565-3
Molecular Formula
C5H9NO2S
Chinese Name
(4S,2RS)-2-甲基噻唑烷-4-羧酸
Molecular Weight
147.19500 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point180-185ºC
Boiling Point333ºC at 760 mmHg
Density1.263g/cm3
Flash Point155.2ºC

Frequently Asked Questions

What is the CAS number of (4S,2RS)-2-Methylthiazolidine-4-carboxylic acid?

The CAS number of (4S,2RS)-2-Methylthiazolidine-4-carboxylic acid is 205985-91-7.

What are the molecular formula and molecular weight of (4S,2RS)-2-Methylthiazolidine-4-carboxylic acid?

(4S,2RS)-2-Methylthiazolidine-4-carboxylic acid has molecular formula C5H9NO2S and molecular weight 147.19500 g/mol.

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

Last updated:

How to cite: Jingsj. "(4S,2RS)-2-Methylthiazolidine-4-carboxylic acid (CAS 205985-91-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25565-3 (accessed 2026-10-23).

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