479 third-party lab reports published Volume pricing on every peptide, applied automatically in the cart: 3% off 2–3 · 8% off 4–5 · 12% off 6–7 · 15% off 8–9 · 20% off 10–19 · 25% off 20–29 · 30% off 30–39 · 35% off 40+ units · solvents and lab supplies excluded 99.65% median purity across 272 lots 257 / 257 lots pass sterility

‹ Certificates ARA-290 Lot 1679

Lab report (Certificate of Analysis, COA)

ARA-290 · 11 mg

Batch 1679 · tested July 2, 2026 (125 days ago) · released July 9, 2026

All tests passed

Batch
#1679 15 tests
Mass
10 mg · tested 11 mg
Purity
99.70%
Issuing lab accreditation
Vanguard · ISO 17025:2017 / A2LA #6377.01.01

3 units tested for purity: 99.70 / 99.08 / 99.08% · spread 0.62 pt · net peptide content 11.84 / 11.66 / 11.67 mg

Conformity: Caution — every reported unit passed on all 11 test rows · purity spread 0.62 pt (caution) · content spread 1.5% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, 2026-07-02 · QA approval corroborates: Vanguard Laboratory, Tori Johnson, 2026-05-22

Vanguard · issuing labEagle Analytical · sterility

Verified by Vanguard Laboratory

This certificate is also hosted by Vanguard Laboratory — the issuing lab — on its own verification site.

View on VerifiedByVanguard.com
Laboratory ID V260615-8 001

Reports for this lot

  1. Vanguard Laboratory this report · tested July 2, 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 5 vials from this lot (rows are not added together) · every row names the chapter or house rule it follows

✓PurityWithin limits
avg 99.29% · 3 units · USP <621> (procedural chapter)
!Purity consistency between unitsCaution
3 units: 99.70 / 99.08 / 99.08% · spread 0.62 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 11.72 mg · 3 units · USP <621> (procedural chapter)
✓Content consistency between unitsWithin house limit
3 units: 11.84 / 11.66 / 11.67 mg · spread 0.18 mg, 1.5% 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
all 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 <5.00 EU/mg (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
5 of 5 pass · 5 units · USP <71> (procedural 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
!ConformityCaution
every reported unit passed on all 11 test rows · purity spread 0.62 pt (caution) · content spread 1.5% within the house limit · QA approval corroborates: Vanguard Laboratory, Tori Johnson, 2026-07-02 · QA approval corroborates: Vanguard Laboratory, Tori Johnson, 2026-05-22 · 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.

First page of the Combined report · Batch 1679

Combined report · Batch 1679

One file holding the Vanguard Laboratory and Eagle Analytical Services reports for this batch, combined by our system from the labs' own files.

5 pages · Vanguard report V260615-8 001 · Vanguard report V260513-13 001

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Tested by Vanguard Laboratory · Eagle Analytical Services Inc. · Released July 9, 2026 · Verify: go.peptidology.co/daeGw2

Permanent URL: https://peptidology.co/coa/ara-290-lot-1679/

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

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