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Sildenafil Impurity 21
[CAS# 269394-18-5]

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Identification
Name Sildenafil Impurity 21
Synonyms 4-[(2-Hydroxybenzoyl)amino]-1-methyl-3-propyl-1H-pyrazole-5-carboxamide
Molecular Structure CAS # 269394-18-5, Sildenafil Impurity 21, 4-[(2-Hydroxybenzoyl)amino]-1-methyl-3-propyl-1H-pyrazole-5-carboxamide
Molecular Formula C15H18N4O3
Molecular Weight 302.33
CAS Registry Number 269394-18-5
SMILES O=C(c2c(NC(=O)c1ccccc1O)c(nn2C)CCC)N
Properties
Solubility 174.3 mg/L (25 ºC water)
Density 1.3±0.1 g/cm3, Calc.*
Index of Refraction 1.640, Calc.*
Melting point 244.04 ºC
Boiling Point 567.32 ºC, 428.1±45.0 ºC (760 mmHg), Calc.*
Flash Point 212.7±28.7 ºC, Calc.*
* Calculated using Advanced Chemistry Development (ACD/Labs) Software.
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