L-(+)-Cystathionine

About L-(+)-Cystathionine

L-(+)-Cystathionine is an organosulfur compound carrying the CAS registry number 56-88-2. The compound has the formula C7H14N2O4S, corresponding to a molecular weight of 222.26 g/mol. The IUPAC name is (2S)-2-amino-4-[(2R)-2-amino-2-carboxyethyl]sulfanylbutanoic acid. It is also known as Cystathionine, L- or (R)-S-(2-Amino-2-carboxyethyl)-L-homocysteine.

Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span organic synthesis and API synthesis. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 100 mg, 250 mg, 1 g and 5 g packs, L-(+)-Cystathionine is dispatched with a Certificate of Analysis (COA) to destinations worldwide. SDS and detailed specification sheets can be requested with your quotation. Custom pack sizes, bulk quantities and specific analytical data can be arranged on request.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	L-(+)-Cystathionine
Catalogue No.	VQ-040155
CAS Number	56-88-2
IUPAC name	(2S)-2-amino-4-[(2R)-2-amino-2-carboxyethyl]sulfanylbutanoic acid
Molecular formula	C₇H₁₄N₂O₄S
Molecular weight	222.26 g/mol
Exact mass	222.0674
InChIKey	ILRYLPWNYFXEMH-WHFBIAKZSA-N
SMILES	C(CSC[C@@H](C(=O)O)N)[C@@H](C(=O)O)N
PubChem CID	439258

Physical properties
Physical form	Other
LogP (XLogP3)	-6
H-bond donors / acceptors	4 / 7
TPSA	152 Å²
Synonyms	S-[(2R)-2-Amino-2-carboxyethyl]-L-homocysteine, Cystathionine, L-, (2S)-2-amino-4-{[(2R)-2-amino-2-carboxyethyl]sulfanyl}butanoic acid, Butanoic acid, 2-amino-4-((2-amino-2-carboxyethyl)thio)-, (R-(R,S))-, (2S)-2-amino-4-((2R)-2-amino-2-carboxyethyl)sulfanylbutanoic acid, (2S)-2-amino-4-(((2R)-2-amino-2-carboxyethyl)sulfanyl)butanoic acid, Butanoic acid, 2-amino-4-[(2-amino-2-carboxyethyl)thio]-, [R-(R,S)]-, (2S)-2-azaniumyl-4-((2R)-2-azaniumyl-2-carboxylatoethyl)sulfanylbutanoate, (R)-S-(2-Amino-2-carboxyethyl)-L-homocysteine, Cystathionine, L- (8CI), L-Homocysteine, S-(2-amino-2-carboxyethyl)-, (R)-

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of L-(+)-Cystathionine?

The CAS Registry Number of L-(+)-Cystathionine is 56-88-2. It is also known as S-[(2R)-2-Amino-2-carboxyethyl]-L-homocysteine, Cystathionine, L-, (2S)-2-amino-4-{[(2R)-2-amino-2-carboxyethyl]sulfanyl}butanoic acid.

What is the molecular formula and molecular weight of L-(+)-Cystathionine?

L-(+)-Cystathionine has the molecular formula C7H14N2O4S and a molecular weight of 222.26 g/mol. Its IUPAC name is (2S)-2-amino-4-[(2R)-2-amino-2-carboxyethyl]sulfanylbutanoic acid.

Which grade and pack sizes of L-(+)-Cystathionine can I order?

We supply L-(+)-Cystathionine, in 100 mg, 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with L-(+)-Cystathionine?

Yes. Every lot of L-(+)-Cystathionine is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can L-(+)-Cystathionine be shipped internationally?

Yes. L-(+)-Cystathionine is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.