Allopurinol

Name: Allopurinol
Brand: Vaqora Chemicals
SKU: VQ-004116

About Allopurinol

Vaqora Chemicals supplies Allopurinol (IP/BP/USP grade), a metabolic / hormonal API registered under CAS number 315-30-0. The compound has the formula C5H4N4O, corresponding to a molecular weight of 136.11 g/mol. Systematically, it is named 1,5-dihydropyrazolo[5,4-d]pyrimidin-4-one. It is also known as 4-Hydroxypyrazolopyrimidine or 1H-Pyrazolopyrimidin-4-ol.

The product is provided as a powder. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

As an active pharmaceutical ingredient within our antidiabetic, hormone and metabolic APIs range, it is offered in IP/BP/USP grade for formulation development, generic drug programmes and commercial manufacturing. Typical end-use sectors are pharmaceutical manufacturing.

We offer Allopurinol in 1 kg, 5 kg and 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Pharmaceutical formulation
Generic drug development

Industries

Related to Allopurinol

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

Allopurinol impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Allopurinol
Catalogue No.	VQ-004116
CAS Number	315-30-0
IUPAC name	1,5-dihydropyrazolo[5,4-d]pyrimidin-4-one
Molecular formula	C₅H₄N₄O
Molecular weight	136.11 g/mol
Exact mass	136.0385
Grade	IP/BP/USP
HSN code	2933
InChIKey	OFCNXPDARWKPPY-UHFFFAOYSA-N
SMILES	C1=NNC2=C1C(=O)NC=N2
PubChem CID	135401907

Physical properties
Physical form	Powder
LogP (XLogP3)	-0.7
H-bond donors / acceptors	2 / 3
TPSA	70.1 Å²
Synonyms	4-Hydroxypyrazolopyrimidine, 1H-Pyrazolopyrimidin-4-ol, HPP, 1H-Pyrazolo[3,4-d]pyrimidin-4-ol, Zyloric, Suspendol, Takanarumin, Urbol, Ketobun-A, Aluline, Dabrosin, Urobenyl

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H317May cause an allergic skin reaction

Precautionary statements: P261, P264, P270, P272, P280, P301 + P316, P302 + P352, P321, P330, P333 + P317, P362 + P364, 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 Allopurinol?

The CAS Registry Number of Allopurinol is 315-30-0. It is also known as 4-Hydroxypyrazolopyrimidine, 1H-Pyrazolopyrimidin-4-ol, HPP.

What is the molecular formula and molecular weight of Allopurinol?

Allopurinol has the molecular formula C5H4N4O and a molecular weight of 136.11 g/mol. Its IUPAC name is 1,5-dihydropyrazolo[5,4-d]pyrimidin-4-one.

What is Allopurinol used for?

Allopurinol 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 Allopurinol can I order?

We supply Allopurinol in IP/BP/USP grade, in 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Allopurinol?

Yes. Every lot of Allopurinol 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 Allopurinol be shipped internationally?

Yes. Allopurinol 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.