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Product Information
Name:
Sildenafil N-Oxide
Synonyms:
- Sildenafil Citrate Imp. B (EP)
- Sildenafil Imp. B (EP)
- 5-[2-Ethoxy-5-[(4-methyl-4-oxidopiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-propyl-6,7-dihydro-1Hpyrazolo[4,3-d]pyrimidin-7-one
- Sildenafil Citrate Impurity B
- Sildenafil Impurity B
CAS:
Description:
Impurity Sildenafil EP Impurity B
Applications Sildenafil N-Oxide (Sildenafil EP Impurity B) is an impurity of Sildenafil citrate (S435000), as prodrug.
References Bickel, M., et al.: Pharmacol. Rev., 21, 325 (1969),
Brand:
TRC
Long term storage:
Notes:
Chemical properties
Molecular weight:
490.58
Formula:
C22H30N6O5S
Color/Form:
Off-White
InChI:
InChI=1S/C22H30N6O5S/c1-5-7-17-19-20(26(3)25-17)22(29)24-21(23-19)16-14-15(8-9-18(16)33-6-2)34(31,32)27-10-12-28(4,30)13-11-27/h8-9,14H,5-7,10-13H2,1-4H3,(H,23,24,29)
SMILES:
CCCc1nn(C)c2c(=O)[nH]c(-c3cc(S(=O)(=O)N4CC[N+](C)([O-])CC4)ccc3OCC)nc12
MDL:
Melting point:
Boiling point:
Flash point:
Density:
Concentration:
EINECS:
Merck:
HS code:
Technical inquiry about: TR-S435035 Sildenafil N-Oxide
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