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‹ Certificates PGL-GI1 Lot 1798

Lab report (Certificate of Analysis, COA)

PGL-GI1 · 10.88 mg

Batch 1798 · tested October 1, 2026 (9 days ago) · released October 7, 2026 Discontinued variant

All tests passed

Batch
#1798 14 of 15 tests
Mass
10 mg · tested 10.88 mg
Purity
99.80%
Issuing lab accreditation
Vanguard · ISO 17025:2017 / A2LA #6377.01.01

3 units tested for purity: 99.80 / 99.80 / 99.80% · spread 0.00 pt · net peptide content 10.92 / 10.83 / 10.9 mg

Conformity: Units agree — every reported unit passed on all 11 test rows · purity spread 0.00 pt within the house limit · content spread 0.8% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-10-01

Vanguard · issuing labEagle Analytical · sterility

Reports for this lot

  1. Vanguard Laboratory this report · tested October 1, 2026 · 11 results · QA approvalVanguard · issuing labEagle Analytical · sterilityAll tests passed

Test by test

11 results on the report · 3 rows computed from the per-unit values · 2 labs · each test used up to 3 vials from this lot (rows are not added together) · every row names the chapter or house rule it follows

✓IdentityPass
1 of 1 pass · 1 unit · USP <621> (procedural chapter)
✓PurityWithin limits
avg 99.80% · 3 units · USP <621> (procedural chapter)
✓Purity consistency between unitsWithin house limit
3 units: 99.80 / 99.80 / 99.80% · spread 0.00 pt · house limit · caution past 0.50 pt, outside past 1.00 pt · per-unit USP <621> results
✓Net peptide content (assay)Within limits
avg 10.88 mg · 3 units · USP <621> (procedural chapter)
✓Content consistency between unitsWithin house limit
3 units: 10.92 / 10.83 / 10.9 mg · spread 0.09 mg, 0.8% of the mean · house check · caution past 5%, outside past 10% · USP <905> is the compendial reference for between-unit uniformity (10 units; not claimable on 3)
✓Heavy metalsWithin limits
5 elements non-detect · 2 units · dose-scaled limits derived from USP <232> (limits chapter)

✓Residual solventsWithin limits
all non-detect · 1 unit · USP <467> (procedural chapter)
✓Trifluoroacetic acidWithin limits
all non-detect · 1 unit · house limit · ion chromatography, the lab's method; no compendial chapter for the method run · limit <0.10% (the lab's)
✓EndotoxinsPass
3 of 3 pass · 3 units · USP <85> (procedural chapter) · limit <10.00 EU/Vial (the lab's)
✓Container closurePass
3 of 3 pass · 3 units · USP <1207> (informational chapter (1000-series))
✓SolubilityPass
3 of 3 pass · 3 units · house check · no compendial chapter
✓SterilityPass
1 of 1 pass · 1 unit · USP <71> (reference) · a rapid viability test used as an alternative to the USP <71> growth test; USP <1223> is the validation framework (informational chapter) · at Eagle Analytical
✓Other · Adulterant screenWithin limits
all non-detect · 1 unit · no chapter named in the record; a screen
✓ConformityUnits agree
every reported unit passed on all 11 test rows · purity spread 0.00 pt within the house limit · content spread 0.8% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, Operations Manager, 2026-10-01 · house check · agreement across all tests, unit to unit; QA approval corroborates

A chapter number names the method or limit a result follows; it does not describe the product. Chapters below 1000 are procedures or limits; 1000-series chapters are informational. USP <905> is the compendial test for between-unit uniformity: it assays 10 units, so a 3-unit certificate cannot yield its acceptance value — the content row is a house check with <905> named as the reference only.

Tested by Vanguard Laboratory · Eagle Analytical Services Inc. · Released October 7, 2026 · Verify: go.peptidology.co/uaCgcF

Permanent URL: https://peptidology.co/coa/pgl-gi1-size-10-88mg-batch-1798-lot-1798/

For research use only. Not intended for diagnostic or therapeutic use.

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