DL-Cystine-D6

Name: DL-Cystine-D6
Brand: Vaqora Chemicals
SKU: VQ-047902

About DL-Cystine-D6

DL-Cystine-D6 (CAS 352431-53-9) is a stable isotope labelled analogue related to Cystine offered by Vaqora Chemicals. With the molecular formula C6H12N2O4S2, it has a molar mass of 246.3 g/mol. The IUPAC name is 2-amino-3-[(2-amino-2-carboxy-1,1,2-trideuterioethyl)disulfanyl]-2,3,3-trideuteriopropanoic acid. It is also known as Cystine-2,2',3,3,3',3'-d6 (9CI).

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

This isotope-labelled compound is used as an internal standard for LC-MS and LC-MS/MS quantitation of Cystine and related analytes in bioanalytical, pharmacokinetic and impurity studies. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies DL-Cystine-D6 in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

LC-MS/MS internal standard
Bioanalytical quantitation
Pharmacokinetic studies

Industries

Related to Cystine

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

Cystine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	DL-Cystine-D6
Catalogue No.	VQ-047902
CAS Number	352431-53-9
IUPAC name	2-amino-3-[(2-amino-2-carboxy-1,1,2-trideuterioethyl)disulfanyl]-2,3,3-trideuteriopropanoic acid
Molecular formula	C₆H₁₂N₂O₄S₂
Molecular weight	246.3 g/mol
Exact mass	246.0615
Grade	Reference Standard
HSN code	38229090
InChIKey	LEVWYRKDKASIDU-UFSLNRCZSA-N
SMILES	[2H]C([2H])(C([2H])(C(=O)O)N)SSC([2H])([2H])C([2H])(C(=O)O)N
PubChem CID	102601776

Physical properties
Physical form	Solid
LogP (XLogP3)	-6.3
H-bond donors / acceptors	4 / 8
TPSA	177 Å²

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 DL-Cystine-D6?

The CAS Registry Number of DL-Cystine-D6 is 352431-53-9. It is also known as Cystine-2,2',3,3,3',3'-d6 (9CI).

What is the molecular formula and molecular weight of DL-Cystine-D6?

DL-Cystine-D6 has the molecular formula C6H12N2O4S2 and a molecular weight of 246.3 g/mol. Its IUPAC name is 2-amino-3-[(2-amino-2-carboxy-1,1,2-trideuterioethyl)disulfanyl]-2,3,3-trideuteriopropanoic acid.

What is DL-Cystine-D6 used for?

DL-Cystine-D6 is supplied as a characterised reference material related to Cystine. 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 DL-Cystine-D6 can I order?

We supply DL-Cystine-D6 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 DL-Cystine-D6?

Yes. Every lot of DL-Cystine-D6 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 DL-Cystine-D6 be shipped internationally?

Yes. We export DL-Cystine-D6 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.