Mercaptopurine

Name: Mercaptopurine
Brand: Vaqora Chemicals
SKU: VQ-026610

About Mercaptopurine

Listed under CAS 50-44-2, Mercaptopurine is a high-purity reference standard of Mercaptopurine available from Vaqora Chemicals. Its molecular formula is C5H4N4S and its molecular weight is 152.18 g/mol. Systematically, it is named 3,7-dihydropurine-6-thione. Alternative names: 6-Mercaptopurine and Mercapurin.

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. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Laboratories use this Mercaptopurine standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Mercaptopurine is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Mercaptopurine

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

Mercaptopurine impurities

Specifications & identifiers

Chemical identifiers
Product name	Mercaptopurine
Catalogue No.	VQ-026610
CAS Number	50-44-2
IUPAC name	3,7-dihydropurine-6-thione
Molecular formula	C₅H₄N₄S
Molecular weight	152.18 g/mol
Exact mass	152.0157
Grade	Reference Standard
HSN code	38229090
InChIKey	GLVAUDGFNGKCSF-UHFFFAOYSA-N
SMILES	C1=NC2=C(N1)C(=S)N=CN2
PubChem CID	667490

Physical properties
Physical form	Solid
H-bond donors / acceptors	2 / 2
TPSA	85.2 Å²
Synonyms	6-Mercaptopurine, Mercapurin, 6-Thiopurine, 6-Thioxopurine, 9H-Purine-6-thiol, 6-Mercaptopurin, Puri-Nethol, 6-Thiohypoxanthine, 1,9-dihydro-6H-purine-6-thione, Mercaptopurin, Hypoxanthine, thio-, 1,7-Dihydro-6H-purine-6-thione

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H302Harmful if swallowed
H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P264, P270, P280, P301 + P316, P301 + P317, P318, P321, P330, 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 Mercaptopurine?

The CAS Registry Number of Mercaptopurine is 50-44-2. It is also known as 6-Mercaptopurine, Mercapurin, 6-Thiopurine.

What is the molecular formula and molecular weight of Mercaptopurine?

Mercaptopurine has the molecular formula C5H4N4S and a molecular weight of 152.18 g/mol. Its IUPAC name is 3,7-dihydropurine-6-thione.

What is Mercaptopurine used for?

Mercaptopurine is supplied as a characterised reference material related to Mercaptopurine. 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 Mercaptopurine can I order?

We supply Mercaptopurine 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 Mercaptopurine?

Yes. Every lot of Mercaptopurine 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 Mercaptopurine be shipped internationally?

Yes. Mercaptopurine 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.