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VendorInvestigator Independent Testing Bureau · Public Records Division
DOCKET YEAR 2026 · VOL. II
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Compound Evidence File
#EC-2026-0134

Masteron P (Drostanolone P)

Filed under Injectable Oils. The bureau holds 150 laboratory returns for this compound from 62 distinct subjects. Scores below are per-subject aggregates; open a subject row for the underlying evidence.

Cross-Index

Subjects Shipping This Compound

62 SUBJECTS
SubjectGradeSamplesMeanMinMaxFirst seenLast seen
HomopeptideCASE #VI-2026-0760 A 7 10.0 9.9 10.0 23 May 2026 23 May 2026
Tianjin Finder Chemical TFCCASE #VI-2026-0693 A 6 10.0 9.9 10.0 14 Nov 2025 16 Apr 2026
WuXi TIDESCASE #VI-2026-0335 A 4 10.0 9.9 10.0 14 Feb 2026 10 Jul 2026
Hybio PharmaceuticalCASE #VI-2026-0065 A 4 10.0 9.9 10.0 8 Mar 2026 24 Jun 2026
AmbioPharmCASE #VI-2026-0177 A 4 10.0 9.9 10.0 11 Apr 2026 12 Aug 2026
Sangon BioCASE #VI-2026-0671 A 3 10.0 10.0 10.0 24 Jan 2026 14 Jun 2026
BachemCASE #VI-2026-0314 A 3 10.0 10.0 10.0 6 Apr 2026 19 May 2026
Mokemei BiotechnologyCASE #VI-2026-0540 A 3 10.0 9.9 10.0 11 Apr 2026 1 Jul 2026
AsymchemCASE #VI-2026-0091 A 3 10.0 9.9 10.0 22 Feb 2026 12 Jun 2026
Shanghai Wibson BiotechnologyCASE #VI-2026-0379 A 2 10.0 10.0 10.0 23 Mar 2026 3 Jun 2026
Chinese Peptide CompanyCASE #VI-2026-0184 A 2 10.0 10.0 10.0 17 Feb 2026 2 Jun 2026
PeptiLab ResearchCASE #VI-2026-0267 X 1 10.0 10.0 10.0 14 Jan 2025 14 Jan 2025
Shanghai ERP BiotechnologyCASE #VI-2026-0936 A 4 9.9 9.9 10.0 19 Mar 2026 4 Jul 2026
QYAOBIOCASE #VI-2026-0861 A 4 9.9 9.9 10.0 12 Nov 2025 6 Jul 2026
Kerui PeptidesCASE #VI-2026-0626 A 4 9.9 9.9 10.0 14 Mar 2026 25 Jun 2026
Flourishglobal PeptideCASE #VI-2026-0630 A 3 9.9 9.9 10.0 27 Nov 2025 1 May 2026
Shanghai Sigma AudleyCASE #VI-2026-0505 A 3 9.9 9.9 10.0 7 May 2026 7 Jul 2026
SinoPepCASE #VI-2026-0387 A 3 9.9 9.9 10.0 22 Apr 2026 19 Aug 2026
JEEP PeptidesCASE #VI-2026-0457 A 2 9.9 9.9 10.0 13 Jan 2026 7 Jul 2026
Hubei JianxiangCASE #VI-2026-0048 A 2 9.9 9.9 9.9 12 Jan 2026 11 Apr 2026
GenScript PeptidesCASE #VI-2026-0860 A 2 9.9 9.9 10.0 9 May 2026 24 Jun 2026
Sigma-AldrichCASE #VI-2026-0829 A 2 9.9 9.9 10.0 25 Jun 2026 9 Jul 2026
PolyPeptide GroupCASE #VI-2026-0143 A 2 9.9 9.9 10.0 6 Jan 2026 25 Feb 2026
Thermo Fisher ScientificCASE #VI-2026-0142 A 2 9.9 9.9 9.9 12 Jan 2026 15 Aug 2026
HazelCASE #VI-2026-0392 X 1 9.8 9.8 9.8 11 Jun 2025 11 Jun 2025
Glbiochem (Shanghai)CASE #VI-2026-0704 A 5 9.4 8.0 10.0 24 May 2026 24 May 2026
Bulk Peptide WholesaleCASE #VI-2026-0319 X 1 9.4 9.4 9.4 21 May 2025 21 May 2025
Dankang BioHealthCASE #VI-2026-0775 X 1 8.7 8.7 8.7 28 Mar 2025 28 Mar 2025
Shanghai Sigma Audley SSACASE #VI-2026-0486 A 3 8.6 8.5 8.8 24 May 2026 24 May 2026
OmegAminoCASE #VI-2026-0014 X 1 8.6 8.6 8.6 27 Feb 2025 27 Feb 2025
Wuhan Wansheng Bio (WWB)CASE #VI-2026-0594 A 5 8.5 8.0 9.2 24 May 2026 24 May 2026
Nantong Guangyuan Chemical GYCCASE #VI-2026-0284 A 7 8.4 7.9 9.5 24 May 2026 24 May 2026
Qingdao Sigma Chemical QSCCASE #VI-2026-0538 A 2 8.4 7.4 9.4 21 May 2026 21 May 2026
BfflinkCASE #VI-2026-0212 X 1 8.4 8.4 8.4 11 Jun 2025 11 Jun 2025
InjectifyCASE #VI-2026-0387 X 2 8.2 8.0 8.4 8 Jul 2025 21 May 2026
Rayshine Peptide BiochemicalsCASE #VI-2026-0545 X 1 8.1 8.1 8.1 3 Jun 2025 3 Jun 2025
Reta-PeptideCASE #VI-2026-0756 X 4 8.0 7.2 8.8 2 Jul 2025 26 Jan 2026
Kits4lessCASE #VI-2026-0744 X 1 7.8 7.8 7.8 13 Jun 2025 13 Jun 2025
NextGen HealthCASE #VI-2026-0604 X 1 7.6 7.6 7.6 11 Jun 2025 11 Jun 2025
Pura PeptidesCASE #VI-2026-0307 X 1 7.4 7.4 7.4 3 Jun 2025 3 Jun 2025
Shandong Shengyuan Peptide TechnologyCASE #VI-2026-0634 X 2 7.3 6.9 7.7 13 Jun 2025 21 May 2026
Shandong Aishi BiotechnologyCASE #VI-2026-0308 X 3 7.2 5.7 9.4 13 Jun 2025 23 May 2026
Shenzhen Loga Tech LG LOGACASE #VI-2026-0920 X 2 7.2 6.7 7.6 28 Mar 2025 17 May 2026
Top PeptideCASE #VI-2026-0721 X 2 7.2 5.9 8.4 3 Jun 2025 21 May 2026
Amino LairCASE #VI-2026-0413 X 1 6.8 6.8 6.8 3 Jul 2025 3 Jul 2025
Peptide SciencesCASE #VI-2026-0867 X 6 6.5 4.6 7.7 20 Jun 2025 24 May 2026
ZZQ PeptidesCASE #VI-2026-0550 X 1 6.3 6.3 6.3 13 Jun 2025 13 Jun 2025
OupeptideCASE #VI-2026-0435 X 4 6.1 4.1 7.4 27 Feb 2025 19 Jan 2026
Hangzhou Youngpeptide Biotechnology HYBCASE #VI-2026-0347 X 1 6.0 6.0 6.0 24 Apr 2025 24 Apr 2025
Astro PeptidesCASE #VI-2026-0424 X 1 5.7 5.7 5.7 9 Jun 2025 9 Jun 2025
Shaanxi Dideu MedichemCASE #VI-2026-0499 X 1 5.6 5.6 5.6 24 Apr 2025 24 Apr 2025
UWA Elite PeptidesCASE #VI-2026-0130 X 1 5.4 5.4 5.4 17 Dec 2024 17 Dec 2024
Suaway Lab ResearchCASE #VI-2026-0488 X 3 4.9 4.0 5.9 3 Jun 2025 26 Jan 2026
Xingtai Lesda TechnologyCASE #VI-2026-0381 X 1 4.9 4.9 4.9 3 Jun 2025 3 Jun 2025
Elite Research USACASE #VI-2026-0267 X 2 4.5 1.7 7.2 2 Jul 2025 21 May 2026
Prime PeptidesCASE #VI-2026-0696 X 1 4.3 4.3 4.3 20 Jun 2025 20 Jun 2025
Oasis PeptidesCASE #VI-2026-0404 X 1 3.6 3.6 3.6 2 Jul 2025 2 Jul 2025
Liberty PeptidesCASE #VI-2026-0416 X 1 3.6 3.6 3.6 7 May 2025 7 May 2025
Modern AminosCASE #VI-2026-0635 X 1 2.7 2.7 2.7 13 Jun 2025 13 Jun 2025
PRIVATECASE #VI-2026-0635 X 1 0.7 0.7 0.7 27 Feb 2025 27 Feb 2025
Zhuoyue BiotechnologyCASE #VI-2026-0632 X 1 0.2 0.2 0.2 6 May 2025 6 May 2025
Wuhan Newtop BiotechCASE #VI-2026-0676 X 1 0.0 0.0 0.0 13 Jun 2025 13 Jun 2025

Open any subject to view the batch-level evidence for Masteron P (Drostanolone P) alone.