449 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 99.59% median purity across 254 lots 242 / 242 lots pass sterility

‹ Certificates DSIP Lot 1352

Lab report (Certificate of Analysis, COA)

DSIP · 5 mg

Batch 1352 · tested March 26, 2025 (550 days ago) · released June 6, 2026 Discontinued variant

All tests passed

Batch
#1352 7 tests
Mass
5 mg
Purity
99.21%
Issuing lab accreditation
Vanguard · ISO 17025:2017 / A2LA #6377.01.01

No tier shown — see the tests listed on the report

1 unit tested for purity: 99.21% as printed

Conformity: Not assessable — every reported unit passed on all 4 test rows · QA approval corroborates: Vanguard Laboratory, Tori Johnson, 2025-03-26

Vanguard · issuing lab

Lab report (PDF)
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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 V250311-18 002

Notes

Content audit 9 Sep 2026: lot 1200013-1352 → 1352. Certificate prints: prints compound "DSIP", lot "1200013-1352", lab id "V250311-18 002", content 4.98 mg

Reports for this lot

  1. Vanguard Laboratory this report · tested March 26, 2025 · 4 results · QA approvalVanguard · issuing labAll tests passed

Test by test

4 results on the report · 3 rows computed from the per-unit values · 1 ISO 17025:2017-accredited lab · each test used up to 1 vial from this lot (rows are not added together) · every row names the chapter or house rule it follows

✓PurityWithin limits
99.21% · 1 unit · USP <621> (procedural chapter)
–Purity consistency between unitsSingle measurement
1 unit measured (99.21%) · a between-unit spread needs two or more measured units
✓Net peptide content (assay)Within limits
4.98 mg · 1 unit · USP <621> (procedural chapter)
–Content consistency between unitsSingle measurement
1 unit printed (4.98 mg) · a between-unit spread needs two or more measured units
–Residual solventsNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
–TFA residualNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
✓EndotoxinsWithin limits
all non-detect · 1 unit · USP <85> (procedural chapter) · limit <0.05 EU/mL (the lab's)
–Container closureNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
–SolubilityNot on this lot's panel
not on this report · this batch was tested to our earlier standard; newer batches get all 15 tests
✓SterilityPass
1 of 1 pass · 1 unit · USP <71> (procedural chapter)
–ConformityNot assessable
every reported unit passed on all 4 test rows · QA approval corroborates: Vanguard Laboratory, Tori Johnson, 2025-03-26 · 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 lab report for lot 1352

Certificate PDF — Lot 1352

Signed third-party lab report.

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Tested by Vanguard Laboratory · Released June 6, 2026

Permanent URL: https://peptidology.co/coa/dsip-lot-1200013-1352/

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

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