A retail vial is also a test of the label. Declared claim 10 mg against what the gravimetry recovers is a question only a purchased vial can answer honestly.
label_claim
Declared mass versus recovered mass. The gap is bigger than people think.
Section 1
Contribution
Both submits records and annotates other people's.
Records submitted
6
n=6
Annotations
142
n=142
Median purity submitted
99.13%
n=6
Suppliers covered
6
n=6
Section 2
Records submitted
A submitter chose to buy this material and to pay for this assay. That choice is the selection mechanism behind the whole index and it is not random.
| Report | Compound | Supplier | Lot | Lab | Quarter | Purity % | Water % | Recovery % | Provenance | Flags | Result |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AX-2026-041617 | TB-500 | FGP | FGP-2512-Y7789 | VendorInvestigate | 2026-Q2 | 99.57 | 4.49 | 99.6 | Buyer-sourced | 0 | PASS |
| AX-2026-043027 | Ipamorelin | KP | KP-2512-X4745 | Janoshik | 2026-Q1 | 99.01 | 2.91 | 89.6 | Supplier-supplied | 1 | MARGINAL |
| AX-2025-018975 | Oxytocin | ASY | ASY-{CAT}-1898 | PeptideMeter | 2025-Q4 | 99.93 | 3.12 | — | Buyer-sourced | 0 | PASS |
| AX-2025-020921 | PT-141 (Bremelanotide) | WXT | WXT-2410-M2421 | Janoshik | 2025-Q1 | 99.11 | 4.78 | — | Supplier-supplied | 0 | PASS |
| AX-2024-004496 | Semaglutide | HYB | HYB-2407-V6435 | Medutest | 2024-Q4 | 99.01 | 4.29 | 103.4 | Buyer-sourced | 0 | PASS |
| AX-2024-004604 | 5-Amino-1MQ | TFC | TFC-2406-A1769 | Janoshik | 2024-Q4 | 99.14 | 2.23 | 102.0 | Buyer-sourced | 1 | FAIL |
Section 3
Annotations
Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.
A retail vial is also a test of the label. Declared claim 5 mg against what the gravimetry recovers is a question only a purchased vial can answer honestly.
A retail vial is also a test of the label. Declared claim 0.1 mg against what the gravimetry recovers is a question only a purchased vial can answer honestly.
A retail vial is also a test of the label. Declared claim 600 mg against what the gravimetry recovers is a question only a purchased vial can answer honestly.
A retail vial is also a test of the label. Declared claim 2 mg against what the gravimetry recovers is a question only a purchased vial can answer honestly.
Nothing outstanding on this record. Balance closed, recovery computed, purity and identity both determined.
Recovered mass follows from the balance and nothing else. 1.82 mg against 2 mg is 91.1 %, and every term in that is a measured quantity on this record.
26.79 mg recovered against a 30 mg claim is 89.3 %. Three contributions: purity at 98.57 %, content at 84.55 %w/w and water at 4.12 %. Content is doing most of the work, as it usually is.
Everything on this record reconciles: gross fill, target content, recovered mass and claim. The gap is explained by the arithmetic rather than left as a discrepancy.
A closed balance is what converts a purity figure into a mass. 88.32 %w/w target content on a 2 mg claim gives 2.09 mg recovered, and every step of that is on the record.
A retail vial is also a test of the label. Declared claim 50 mg against what the gravimetry recovers is a question only a purchased vial can answer honestly.
Purity at 98.18 % and recovery at 89.0 % are independent findings. High purity and low recovery is a formulation and fill result, not a synthesis one.
Showing 12 distinct comments of 142 annotations by this handle.