D,L-Cystathionine

Also known as: Cystathionine, S-(2-Amino-2-carboxyethyl)homocysteine, DL-Allocystathionine, 2-Amino-4-((2-amino-2-carboxyethyl)thio)butanoic acid, Homocysteine, S-(2-amino-2-carboxyethyl)-

D,L-Cystathionine (CAS 535-34-2) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C7H14N2O4S and a molecular weight of 222.26200 g/mol. Key properties include a melting point of 281ºC, a boiling point of 481ºC at 760 mmHg, a density of 1.43 g/cm3 and a flash point of 244.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 535-34-2
Jingsj CID: J-39117-1
Molecular Formula: C₇H₁₄N₂O₄S
Molecular Weight: 222.26200 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	281ºC
Boiling Point	481ºC at 760 mmHg
Density	1.43 g/cm3
Flash Point	244.7ºC
Exact Mass	222.06700
PSA	151.94000
LogP	0.33410
Refractive Index	1.592
Storage Conditions	2-8°C

Activity & Biological Data

Additional Information	[1]. P W Wong, et al. Tissue cystathionine in mice treated with cysteine and homoserine. Pediatr Res. 1972 Mar;6(3):172-81.

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. 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 D,L-Cystathionine?

The CAS number of D,L-Cystathionine is 535-34-2.

What are the molecular formula and molecular weight of D,L-Cystathionine?

D,L-Cystathionine has molecular formula C7H14N2O4S and molecular weight 222.26200 g/mol.

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. "D,L-Cystathionine (CAS 535-34-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39117-1 (accessed 2026-11-07).

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