CAS No: 139755-82-1, Chemical Name: DESMETHYL SILDENAFIL
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139755-82-1 DESMETHYL SILDENAFIL

product Name DESMETHYL SILDENAFIL
Synonyms 5-[2-Ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl- 7H-pyrazolo[4,3-d]pyrimidin-7-one; UK 103320; 5-[2-ethoxy-5-(piperazin-1-ylsulfonyl)phenyl]-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Molecular Formula C21H28N6O4S
Molecular Weight 460.5498
InChI InChI=1/C21H28N6O4S/c1-4-6-16-18-19(26(3)25-16)21(28)24-20(23-18)15-13-14(7-8-17(15)31-5-2)32(29,30)27-11-9-22-10-12-27/h7-8,13,22H,4-6,9-12H2,1-3H3,(H,23,24,28)
CAS Registry Number 139755-82-1
Molecular Structure 139755-82-1 DESMETHYL SILDENAFIL
Density 1.44g/cm3
Melting point 158-160℃
Boiling point 685.7°C at 760 mmHg
Refractive index 1.683
Flash point 368.5°C
Vapour Pressur 1.17E-18mmHg at 25°C
Hazard Symbols
Risk Codes
Safety Description