Bismerthiazol

Name: Bismerthiazol
Brand: Vaqora Chemicals
SKU: VQ-040597

About Bismerthiazol

Vaqora Chemicals supplies Bismerthiazol, a high-purity reference standard of Allopurinol registered under CAS number 79319-85-0. With the molecular formula C5H6N6S4, it has a molar mass of 278.4 g/mol. The IUPAC name is 5-[[(2-sulfanylidene-3H-1,3,4-thiadiazol-5-yl)amino]methylamino]-3H-1,3,4-thiadiazole-2-thione. Alternative names: Chuan HUA 018 and bismerthianol.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

As a reference sample of Allopurinol, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

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

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Allopurinol

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

Allopurinol impurities

Specifications & identifiers

Chemical identifiers
Product name	Bismerthiazol
Catalogue No.	VQ-040597
CAS Number	79319-85-0
IUPAC name	5-[[(2-sulfanylidene-3H-1,3,4-thiadiazol-5-yl)amino]methylamino]-3H-1,3,4-thiadiazole-2-thione
Molecular formula	C₅H₆N₆S₄
Molecular weight	278.4 g/mol
Exact mass	277.9537
Grade	Reference Standard
HSN code	38229090
InChIKey	RSNWORHVUOZYLT-UHFFFAOYSA-N
SMILES	C(NC1=NNC(=S)S1)NC2=NNC(=S)S2
PubChem CID	3035829

Physical properties
Physical form	Solid
LogP (XLogP3)	1.3
H-bond donors / acceptors	4 / 6
TPSA	188 Å²
Synonyms	N,N'-methylene-bis(2-amino-5-mercapto-1,3,4-thiadiazole), 5,5'-(Methylenebis(azanediyl))bis(1,3,4-thiadiazole-2(3H)-thione), Chuan HUA 018, 1,3,4-Thiadiazole-2(3H)-thione, 5,5'-(methylenediimino)bis-, bismerthianol, N,N'-Methylene-bis(2-amino-5-sulfhydryl-1,3,4-thiadiazole), Thrill 20WP, bismerthiazol [ISO], 5,5'-(methylenediimino)bis(1,3,4-thiadiazole-2-thiol), 4-thiadiazole-2(3h)-thione,5,5'-(methylenediimino)bis-3, 3,4-Thiadiazole-2(3H)-thione,5,5'-(methylenediimino)bis-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 Bismerthiazol?

The CAS Registry Number of Bismerthiazol is 79319-85-0. It is also known as N,N'-methylene-bis(2-amino-5-mercapto-1,3,4-thiadiazole), 5,5'-(Methylenebis(azanediyl))bis(1,3,4-thiadiazole-2(3H)-thione), Chuan HUA 018.

What is the molecular formula and molecular weight of Bismerthiazol?

Bismerthiazol has the molecular formula C5H6N6S4 and a molecular weight of 278.4 g/mol. Its IUPAC name is 5-[[(2-sulfanylidene-3H-1,3,4-thiadiazol-5-yl)amino]methylamino]-3H-1,3,4-thiadiazole-2-thione.

What is Bismerthiazol used for?

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

We supply Bismerthiazol 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 Bismerthiazol?

Yes. Every lot of Bismerthiazol 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 Bismerthiazol be shipped internationally?

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