PHR2005

Allopurinol Related Compound A

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(s): 3-Amino-4-pyrazolecarboxamide hemisulfate salt
• Linear Formula: (C₄H₆N₄O)₂ · H₂SO₄
• CAS Number: 27511-79-1
• Molecular Weight: 350.31
• MDL number: MFCD00013093
• UNSPSC Code: 41116107
• NACRES: NA.24

Properties

• grade: certified reference material; pharmaceutical secondary standard
• Quality Level: 300
• agency: traceable to BP 831; traceable to Ph. Eur. A0350010; traceable to USP 1013024
• API family: allopurinol
• form: solid
• CofA: current certificate can be downloaded
• packaging: pkg of 50 mg
• mp: 224 °C (dec.) (lit.)
• application(s): pharmaceutical
• storage temp.: 2-8°C
• SMILES string: OS(O)(=O)=O.NC(=O)c1c[nH]nc1N.NC(=O)c2c[nH]nc2N
• InChI: 1S/2C4H6N4O.H2O4S/c2*5-3-2(4(6)9)1-7-8-3;1-5(2,3)4/h2*1H,(H2,6,9)(H3,5,7,8);(H2,1,2,3,4)
• InChI key: UMPKASYMNORSRO-UHFFFAOYSA-N

Description

General description

Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards

Application

Reactant involved in synthesis of:

• Triazines and their phosphorus analogs
• Pyrazolo[3,4-d]pyrimidines for use as cyclin-dependent kinase 2 inhibitors

Analysis Note

These secondary standards offer multi-traceability to the USP, EP and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAB6412 in the Documents slot below. This is an example certificate only and may not be the lot that you receive.

Recommended products

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable