Chemical Name: 5-(4H-1,2,4-Triazol-4-yl)-1H-pyrazole-4-carboxamide (as per EP & USP)
Synonym: Allopurinol USP Related Compound C
Smiles: O=C(C1=C(N2C=NN=C2)NN=C1)N
Inchi: InChI=1S/C5H6N4O2/c6-4(11)3-1-8-9-5(3)7-2-10/h1-2H,(H2,6,11)(H2,7,8,9,10)
Automated fluorimetric determination of the genotoxic impurity hydrazine in allopurinol pharmaceuticals using zone fluidics and on-line solid phase extraction
Paraskevas D. Tzanavaras a,∗, Stefanos Themistokleous a, Constantinos K. Zacharis
Journal of Pharmaceutical and Biomedical Analysis 177 (2020) 112887
A Validated Stability Indicating RP-UPLC Method for the Quantitative Determination of Potential Impurities of Allopurinol
Sajan PG*1, Rohith T1, Santosh Patil2, Mantelingu K3, Rangappa K S3, Kumara M N
Am. J. Pharm Health Res 2014;2(10)
Development Of A Stability Indicating RP-RRLC Method For Determination Of Allopurinol And Its Degradation Products In Solid Oral Dosage
Sukhdev Singh1*, Zakir Gadhawala
Int.J.PharmTech Res.2013,5(1), pp 44-53