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Sildenafil Impurity 20
[CAS# 372089-76-4]

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Name Sildenafil Impurity 20
Synonyms 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide
Molecular Structure CAS # 372089-76-4, Sildenafil Impurity 20, 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonamide
Molecular Formula C17H21N5O4S
Molecular Weight 391.44
CAS Registry Number 372089-76-4
Solubility 63.09 mg/L (25 ºC water)
Density 1.5±0.1 g/cm3, Calc.*
Index of Refraction 1.680, Calc.*
Melting point 288.15 ºC
Boiling Point 661.75 ºC, 649.3±65.0 ºC (760 mmHg), Calc.*
Flash Point 346.5±34.3 ºC, Calc.*
* Calculated using Advanced Chemistry Development (ACD/Labs) Software.
Safety Data
Hazard Symbols symbol   GHS07 Warning    Details
Hazard Statements H302+H312+H332-H315-H319    Details
Precautionary Statements P261-P271-P280-P302+P352-P305+P351+P338    Details
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