L-Lysine S-(Carboxymethyl)-L-Cysteine

Name: L-Lysine S-(Carboxymethyl)-L-Cysteine
Brand: Vaqora Chemicals
SKU: VQ-044239

About L-Lysine S-(Carboxymethyl)-L-Cysteine

L-Lysine S-(Carboxymethyl)-L-Cysteine is an impurity of Lysine carrying the CAS registry number 49673-81-6. Formula C11H23N3O6S, molecular weight 325.38 g/mol. It is also known as carbocysteine lysine or S-Carboxymethyl-L-cysteine lysinate.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Lysine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies L-Lysine S-(Carboxymethyl)-L-Cysteine in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Lysine

View every impurity, metabolite and intermediate we list for Lysine.

Lysine impurities

Specifications & identifiers

Chemical identifiers
Product name	L-Lysine S-(Carboxymethyl)-L-Cysteine
Catalogue No.	VQ-044239
CAS Number	49673-81-6
IUPAC name	(2R)-2-amino-3-(carboxymethylsulfanyl)propanoic acid;(2S)-2,6-diaminohexanoic acid
Molecular formula	C₁₁H₂₃N₃O₆S
Molecular weight	325.38 g/mol
Exact mass	325.1308
Grade	Reference Standard
HSN code	38229090
InChIKey	SAGXGPWVLUSDSQ-RVZXSAGBSA-N
SMILES	C(CCN)C[C@@H](C(=O)O)N.C([C@@H](C(=O)O)N)SCC(=O)O
PubChem CID	6452154

Physical properties
Physical form	Solid
H-bond donors / acceptors	6 / 10
TPSA	215 Å²
Synonyms	carbocysteine lysine, L-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1), S-Carboxymethyl-L-cysteine lysinate, (R)-2-Amino-3-((carboxymethyl)thio)propanoic acid,(S)-2,6-diaminohexanoic acid, S-(Carboxymethyl)cysteine--lysine (1/1), S-(Carboxymethyl)-L-cysteine--L-lysine (1/1)

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-Lysine S-(Carboxymethyl)-L-Cysteine?

The CAS Registry Number of L-Lysine S-(Carboxymethyl)-L-Cysteine is 49673-81-6. It is also known as carbocysteine lysine, L-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1), S-Carboxymethyl-L-cysteine lysinate.

What is the molecular formula and molecular weight of L-Lysine S-(Carboxymethyl)-L-Cysteine?

L-Lysine S-(Carboxymethyl)-L-Cysteine has the molecular formula C11H23N3O6S and a molecular weight of 325.38 g/mol.

What is L-Lysine S-(Carboxymethyl)-L-Cysteine used for?

L-Lysine S-(Carboxymethyl)-L-Cysteine is supplied as a characterised reference material related to Lysine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of L-Lysine S-(Carboxymethyl)-L-Cysteine can I order?

We supply L-Lysine S-(Carboxymethyl)-L-Cysteine in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with L-Lysine S-(Carboxymethyl)-L-Cysteine?

Yes. Every lot of L-Lysine S-(Carboxymethyl)-L-Cysteine 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-Lysine S-(Carboxymethyl)-L-Cysteine be shipped internationally?

Yes. We export L-Lysine S-(Carboxymethyl)-L-Cysteine worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.