Thiobarbituric acid, GR 99%+

Name: Thiobarbituric acid, GR 99%+
Brand: Vaqora Chemicals
SKU: VQ-012540

About Thiobarbituric acid, GR 99%+

Thiobarbituric acid is a saturated N-heterocycle in AR grade carrying the CAS registry number 504-17-6 with a typical assay of ≥99%. With the molecular formula C4H4N2O2S, it has a molar mass of 144.15 g/mol. The IUPAC name is 2-sulfanylidene-1,3-diazinane-4,6-dione. Common synonyms include 4,6-Dihydroxy-2-mercaptopyrimidine and 4,6-Dihydroxypyrimidine-2-thiol.

It is supplied as a powder. Literature values give a melting point of 245 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span oxidation reactions and organic synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Thiobarbituric acid in 25 g, 100 g, 5 x 1 kg and 4 x 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Oxidation reactions
Organic synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Thiobarbituric acid, GR 99%+
Catalogue No.	VQ-012540
CAS Number	504-17-6
IUPAC name	2-sulfanylidene-1,3-diazinane-4,6-dione
Molecular formula	C₄H₄N₂O₂S
Molecular weight	144.15 g/mol
Exact mass	143.9993
Grade	AR
Purity / assay	≥99%
HSN code	29335200
InChIKey	RVBUGGBMJDPOST-UHFFFAOYSA-N
SMILES	C1C(=O)NC(=S)NC1=O
PubChem CID	2723628

Physical properties
Physical form	Powder
Appearance	Powder
Melting point	245 °C
LogP (XLogP3)	-0.9
H-bond donors / acceptors	2 / 3
TPSA	90.3 Å²
Synonyms	4,6-Dihydroxy-2-mercaptopyrimidine, 4,6-Dihydroxypyrimidine-2-thiol, TBA, Austranal, 4,6(1H,5H)-Pyrimidinedione, dihydro-2-thioxo-, 2-Mercaptobarbituric acid, Barbituric acid, 2-thio-, Dihydro-2-thioxo-4,6(1H,5H)-pyrimidinedione, 2-Mercapto-4,6-dihydroxypyrimidine, 2-sulfanylidenedihydropyrimidine-4,6(1H,5H)-dione, 2-thioxodihydropyrimidine-4,6(1H,5H)-dione, 4,6-Dihydroxy-2-thiopyrimidine

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, 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

Other grades of CAS 504-17-6

Thiobarbituric acid, 99%

CAS: 504-17-6
Formula: C₄H₄N₂O₂S
MW: 144.15 g/mol

VQ-045923

Frequently asked questions

What is the CAS number of Thiobarbituric acid, GR 99%+?

The CAS Registry Number of Thiobarbituric acid, GR 99%+ is 504-17-6. It is also known as 4,6-Dihydroxy-2-mercaptopyrimidine, 4,6-Dihydroxypyrimidine-2-thiol, TBA.

What is the molecular formula and molecular weight of Thiobarbituric acid, GR 99%+?

Thiobarbituric acid, GR 99%+ has the molecular formula C4H4N2O2S and a molecular weight of 144.15 g/mol. Its IUPAC name is 2-sulfanylidene-1,3-diazinane-4,6-dione.

Which grade and pack sizes of Thiobarbituric acid, GR 99%+ can I order?

We supply Thiobarbituric acid, GR 99%+ in AR (≥99%) grade, in 25 g, 100 g, 5 x 1 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Thiobarbituric acid, GR 99%+?

Yes. Every lot of Thiobarbituric acid, GR 99%+ 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 Thiobarbituric acid, GR 99%+ be shipped internationally?

Yes. Thiobarbituric acid, GR 99%+ 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.