Sildenafil (Viagra)
37
Vendors
111
Samples
5.8
Avg Score
Vendor grade distribution
37 vendors · 1 flagged D–E
28
A
1
B
2
C
0
D
1
E
5
X
| # | Vendor | Rating | Count | Avg | Min | Max | Range 0–10 | Most Recent |
|---|---|---|---|---|---|---|---|---|
| 1 | Tianjin Finder Chemical TFC | A | 5 | 10.0 | 9.9 | 10.0 | 16 Apr 2026 | |
| 2 | WuXi TIDES | A | 5 | 10.0 | 9.9 | 10.0 | 27 Jun 2026 | |
| 3 | Bachem | A | 4 | 10.0 | 10.0 | 10.0 | 1 Jul 2026 | |
| 4 | Sangon Bio | A | 3 | 10.0 | 10.0 | 10.0 | 14 Jun 2026 | |
| 5 | Hubei Jianxiang | A | 3 | 10.0 | 10.0 | 10.0 | 2 Jul 2026 | |
| 6 | Flourishglobal Peptide | A | 3 | 10.0 | 9.9 | 10.0 | 15 Jul 2026 | |
| 7 | Shanghai Wibson Biotechnology | A | 3 | 10.0 | 9.9 | 10.0 | 11 Jun 2026 | |
| 8 | AmbioPharm | A | 3 | 10.0 | 9.9 | 10.0 | 10 Aug 2026 | |
| 9 | QYAOBIO | A | 2 | 10.0 | 10.0 | 10.0 | 7 May 2026 | |
| 10 | Chinese Peptide Company | A | 2 | 10.0 | 10.0 | 10.0 | 6 Apr 2026 | |
| 11 | SinoPep | A | 2 | 10.0 | 10.0 | 10.0 | 22 Apr 2026 | |
| 12 | Homopeptide | A | 7 | 9.9 | 9.9 | 10.0 | 25 May 2026 | |
| 13 | Mokemei Biotechnology | A | 4 | 9.9 | 9.9 | 10.0 | 1 Jul 2026 | |
| 14 | PolyPeptide Group | A | 4 | 9.9 | 9.9 | 10.0 | 27 Jul 2026 | |
| 15 | Shanghai ERP Biotechnology | A | 3 | 9.9 | 9.9 | 10.0 | 24 Jun 2026 | |
| 16 | Hybio Pharmaceutical | A | 3 | 9.9 | 9.9 | 9.9 | 10 Jun 2026 | |
| 17 | Sigma-Aldrich | A | 3 | 9.9 | 9.9 | 10.0 | 15 Jul 2026 | |
| 18 | Thermo Fisher Scientific | A | 3 | 9.9 | 9.9 | 10.0 | 22 Jul 2026 | |
| 19 | JEEP Peptides | A | 2 | 9.9 | 9.9 | 10.0 | 5 Apr 2026 | |
| 20 | Kerui Peptides | A | 2 | 9.9 | 9.9 | 10.0 | 7 Jul 2026 | |
| 21 | Shanghai Sigma Audley | A | 2 | 9.9 | 9.9 | 10.0 | 1 Jun 2026 | |
| 22 | GenScript Peptides | A | 2 | 9.9 | 9.9 | 10.0 | 28 Jul 2026 | |
| 23 | Asymchem | A | 2 | 9.9 | 9.9 | 10.0 | 21 Jul 2026 | |
| 24 | Qingdao Sigma Chemical QSC | A | 2 | 8.9 | 8.3 | 9.6 | 21 May 2026 | |
| 25 | Shanghai Sigma Audley SSA | A | 7 | 8.8 | 7.1 | 9.7 | 24 May 2026 | |
| 26 | Glbiochem (Shanghai) | A | 6 | 8.6 | 7.2 | 9.7 | 24 May 2026 | |
| 27 | Nantong Guangyuan Chemical GYC | A | 2 | 7.8 | 6.7 | 8.9 | 24 May 2026 | |
| 28 | Wuhan Wansheng Bio (WWB) | A | 6 | 7.6 | 6.8 | 8.9 | 24 May 2026 | |
| 29 | Shanghai OuDaXin New Material Technology Center | E | 4 | 6.4 | 5.2 | 7.6 | 20 May 2026 | |
| 30 | Royal Peptides | B | 2 | 8.5 | 7.2 | 9.8 | 24 May 2026 | |
| 31 | Shenzhen Jiechuang Trading | X | 1 | 7.3 | 7.3 | 7.3 | 14 Jan 2025 | |
| 32 | ZhuoYan lab | C | 3 | 6.3 | 5.4 | 7.8 | 25 May 2026 | |
| 33 | Alimo Peptide | X | 1 | 5.7 | 5.7 | 5.7 | 13 Jun 2025 | |
| 34 | HXNet | C | 2 | 5.2 | 4.3 | 6.1 | 24 May 2026 | |
| 35 | Peptidology | X | 1 | 5.0 | 5.0 | 5.0 | 17 Dec 2024 | |
| 36 | Haikou Mingheng Technology | X | 1 | 3.2 | 3.2 | 3.2 | 28 Mar 2025 | |
| 37 | LOOKBiotech | X | 1 | 0.0 | 0.0 | 0.0 | 17 Dec 2024 |