9H-Purine-6-thiol

Name: 9H-Purine-6-thiol
Brand: Vaqora Chemicals
SKU: VQ-047506

About 9H-Purine-6-thiol

Listed under CAS 157930-14-8, 9H-Purine-6-thiol is an impurity of Azathioprine available from Vaqora Chemicals. Formula C5H4N4S, molecular weight 152.18 g/mol. The IUPAC name is 3,7-dihydropurine-6-thione. Common synonyms include 6-Mercaptopurine and mercaptopurine.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

This Azathioprine impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 9H-Purine-6-thiol is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Azathioprine

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

Azathioprine impurities

Specifications & identifiers

Chemical identifiers
Product name	9H-Purine-6-thiol
Catalogue No.	VQ-047506
CAS Number	157930-14-8
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, mercaptopurine, Mercapurin, 6-Thiopurine, 6-Thioxopurine, 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 9H-Purine-6-thiol?

The CAS Registry Number of 9H-Purine-6-thiol is 157930-14-8. It is also known as 6-Mercaptopurine, mercaptopurine, Mercapurin.

What is the molecular formula and molecular weight of 9H-Purine-6-thiol?

9H-Purine-6-thiol 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 9H-Purine-6-thiol used for?

9H-Purine-6-thiol is supplied as a characterised reference material related to Azathioprine. 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 9H-Purine-6-thiol can I order?

We supply 9H-Purine-6-thiol 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 9H-Purine-6-thiol?

Yes. Every lot of 9H-Purine-6-thiol 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 9H-Purine-6-thiol be shipped internationally?

Yes. 9H-Purine-6-thiol 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.