QSC RESEARCH GRADE
≥99% HPLC PurityMS ConfirmedJanoshik COAIn-House SPPS5-Region Domestic Shipping
What is Sildenafil?
Sildenafil Citrate (Sildenafil) is a pde5 inhibitor, formula C28H38N6O11S, MW 666.7. Research use only.
Quick Specs
| Form | Lyophilized powder |
| Purity | ≥99% by HPLC — every batch |
| CAS Number | 171599-83-0 |
| Molecular Formula | C28H38N6O11S, MW 666.7 |
| Identity | MS molecular weight confirmed — every batch |
| Compound Type | PDE5 Inhibitor |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house Fmoc SPPS — Qingdao, China |
| Storage | -20°C sealed | 2–8°C reconstituted (2–4 weeks) |
| Shelf Life | 24 months (unopened) |

