Allopurinol EP Impurity E
[CAS# 31055-19-3]

Identification

• Classification: Analytical chemistry >> Standard >> Pharmacopoeia standards and magazine standards
• Name: Allopurinol EP Impurity E
• Synonyms: Ethyl 5-(formylamino)-1H-pyrazole-4-carboxylate
• Molecular Formula: C₇H₉N₃O₃
• Molecular Weight: 183.16
• CAS Registry Number: 31055-19-3
• EC Number: 641-606-0
• SMILES: CCOC(=O)C1=C(NN=C1)NC=O

Properties

• Density: 1.4±0.1 g/cm³, Calc.^*
• Index of Refraction: 1.596, Calc.^*
• Boiling Point: 483.2±30.0 ºC (760 mmHg), Calc.^*
• Flash Point: 246.0±24.6 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07 Warning
• Hazard Statements: H315-H319-H335
• Precautionary Statements: P261-P264-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P321-P332+P313-P337+P313-P362-P403+P233-P405-P501