About Allopurinol impurity B
Allopurinol impurity B European Pharmacopoeia (EP) Reference Standard Synonym: 3-(Formylamino)-1H-pyrazole-4-carboxamide, 5-(Formylamino)-1H-pyrazole-4-carboxamide CAS Number 22407-20-1 Empirical Formula (Hill Notation) C5H6N4O2 Molecular Weight 154.13 Properties form neat format neat Description General description This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia . Other Notes Sales restrictions may apply.
FAQs of Allopurinol impurity B:
Q: What is the recommended storage condition for Allopurinol impurity B?
A: Allopurinol impurity B should be stored in a hygroscopic environment at -20C in a freezer and under an inert atmosphere.
Q: What solvents can Allopurinol impurity B be dissolved in?
A: Allopurinol impurity B is slightly soluble in DMSO and methanol.
Q: What is the molecular weight of Allopurinol impurity B?
A: The molecular weight of Allopurinol impurity B is 154.13 grams (g).
Q: What is the melting point of Allopurinol impurity B?
A: The melting point of Allopurinol impurity B is greater than 200C (with decomposition).
Q: What is the purity level of Allopurinol impurity B?
A: Allopurinol impurity B has a purity level of 99%.