(E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-Pyrazole-4-carboxylic Acid Ethyl Ester
- CAS
- 321571-07-7
- Formula
- C12H14N4O4
- MW
- 278.26 g/mol
ZX-020549
API Impurities
Oxypurinol
Reference StandardAvailable on request
Oxypurinol (CAS 2465-59-0) supplier Zemixal. Request a quote with price, lead time and documents. Part of our API Impurities range.
CAS number2465-59-0
FormulaC5H4N4O2
Molar mass152.11 g/mol
Physical formSolid
HS code38229090
InChIKeyHXNFUBHNUDHIGC-UHFFFAOYSA-N
IUPAC name1,7-dihydropyrazolo[5,4-d]pyrimidine-4,6-dione
About Oxypurinol
Zemixal lists Oxypurinol for laboratories that identify, quantify or control Allopurinol and its related substances. For your records (Reference Standard), the material is defined by CAS 2465-59-0, formula C5H4N4O2 and molar mass 152.11 g/mol. It is handled as a solid.
Common uses in the lab and plant
- Analytical method development
- Method validation (AMV)
- QC release testing
- ANDA / DMF filings
Storage and safety notes
It carries the GHS signal word Warning (H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.
Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Reference standards for Allopurinol
See every impurity, metabolite and related compound we list for this API.
Allopurinol standardsTypical uses
- Analytical method development
- Method validation (AMV)
- QC release testing
- ANDA / DMF filings
Applications
Specifications and identifiers
| Product name | Oxypurinol |
|---|---|
| Catalogue number | ZX-020550 |
| CAS number | 2465-59-0 |
| IUPAC name | 1,7-dihydropyrazolo[5,4-d]pyrimidine-4,6-dione |
| Molecular formula | C5H4N4O2 |
| Molar mass | 152.11 g/mol |
| Exact mass | 152.0334 |
| Grade | Reference Standard |
| Physical form | Solid |
| XLogP3 | -0.9 |
| H-bond donors / acceptors | 3 / 3 |
| Topological polar surface area | 86.9 Ų |
| HS code | 38229090 |
| InChIKey | HXNFUBHNUDHIGC-UHFFFAOYSA-N |
| SMILES | C1=NNC2=C1C(=O)NC(=O)N2 |
| PubChem CID | 135398752 |
| Synonyms | Oxipurinol, 1H-Pyrazolo[3,4-d]pyrimidine-4,6-diol, Alloxanthine, Oxoallopurinol, 1H-Pyrazolo[3,4-d]pyrimidine-4,6(5H,7H)-dione, 1H-Pyrazolo(3,4-d)pyrimidine-4,6-diol, 1,2-dihydropyrazolo[3,4-d]pyrimidine-4,6-dione, 1H-Pyrazolo(3,4-d)pyrimidine,4,6(5H,7H)-dione, 1,7-dihydropyrazolo[3,4-d]pyrimidine-4,6-dione, 1H,4H,5H,6H,7H-pyrazolo[3,4-d]pyrimidine-4,6-dione, 1,2-dihydropyrazolo(3,4-d)pyrimidine-4,6-dione, 1,7-dihydropyrazolo(3,4-d)pyrimidine-4,6-dione |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 10 mg | Quoted on request | |
| 25 mg | Quoted on request | |
| 50 mg | Quoted on request | |
| 100 mg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Oxypurinol
Which CAS number identifies Oxypurinol?
Oxypurinol is registered under CAS 2465-59-0. You may also see it listed as Oxipurinol, 1H-Pyrazolo[3,4-d]pyrimidine-4,6-diol, Alloxanthine. Our catalogue number for this item is ZX-020550.
What are the formula and molar mass of Oxypurinol?
For Oxypurinol, its formula is C5H4N4O2 and its molar mass is 152.11 g/mol. The systematic (IUPAC) name is 1,7-dihydropyrazolo[5,4-d]pyrimidine-4,6-dione. InChIKey HXNFUBHNUDHIGC-UHFFFAOYSA-N lets you match it in any structure database.
How is Oxypurinol used in pharmaceutical QC?
Oxypurinol is a characterised reference material linked to Allopurinol. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Oxypurinol?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Oxypurinol?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Oxypurinol to my country?
Yes. Because Oxypurinol is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
More Allopurinol standards
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