Independent · non-commercial · publishes on a quarterly cycle|Current cycle 2026 Q3
Compound Evidence InstituteEvidence synthesis · established 2023Graded assessments of compounds, trials, methods and supply
Document set current to 30 July 2026
Supplier dossier · §2

GGPeps — scoring against the rubric

Criterion-by-criterion scoring with the rubric anchors reproduced.

Document identifier
CEI-SD-14/2
Series
Supplier dossier
Version
1.2
Published
05 May 2026
Last reviewed
05 May 2026
Next review
05 May 2027
Identifier
10.71829/cei.supp.14
Certainty
Not rated
Cycle
2026 Q2
Assessment score
65.0 / 100
Conformance
C

The Institute assesses documentation, not product. It has purchased nothing, tested nothing and inspected nothing. Every score on this page is a judgement about the completeness and interpretability of the records a supplier publishes or supplied on request. A high score means that a supplier documents its material well. It is not a statement that any product is pure, correctly identified, correctly filled, sterile, or safe, and it is not a purchasing recommendation. The Institute makes no purchasing recommendations.

§2Scoring against the rubric

The rubric is published in full so that a reader can check a judgement rather than take it. Each criterion is scored on an anchored zero-to-five scale, and the anchors are reproduced below alongside the score awarded, with the point on the scale the Institute judged this supplier to occupy.

§2.1Certificate-of-analysis completeness (25 % weight)

Assessed against the Institute's COA minimum data standard (CEI-MS-14). Full marks require identity by two orthogonal methods, purity by a stability-indicating chromatographic method with the method stated, peptide content, water content, counter-ion identity and content, and batch traceability.

Table 2. Anchors for certificate-of-analysis completeness, with the point awarded to GGPeps marked.

PointAnchor
0No certificate, or a certificate with no method information
1Purity percentage only, no method, no batch link
2Purity with method named; no content or counter-ion
3Purity, method and mass-spectrometric identity; content absentAwarded
4All critical fields present; one or two recommended fields absent
5Every critical and recommended field present with traceable batch linkage
Score awarded: 3 of 5, contributing 15.0 of a possible 25 points to the total.

§2.2Independent third-party testing record (25 % weight)

Frequency, breadth and verifiability of testing by a laboratory independent of the supplier. Reports must be attributable to a named laboratory and a named batch.

Table 3. Anchors for independent third-party testing record, with the point awarded to GGPeps marked.

PointAnchor
0No independent testing published
1Isolated reports, batch not identified
2Occasional reports for a small part of the catalogue
3Regular reports across a substantial part of the catalogue
4Systematic per-batch reporting for the principal product linesAwarded
5Systematic per-batch reporting across the catalogue with verifiable laboratory attribution
Score awarded: 4 of 5, contributing 20.0 of a possible 25 points to the total.

§2.3Identity confirmation practice (15 % weight)

Whether identity is confirmed by an orthogonal method rather than inferred from a single chromatographic retention time, and whether investigational compounds with contested sequences are addressed.

Table 4. Anchors for identity confirmation practice, with the point awarded to GGPeps marked.

PointAnchor
0No identity method reported
1Retention time only
2Mass spectrometry reported without resolution or expected-mass statement
3Mass spectrometry with expected mass statedAwarded
4High-resolution mass spectrometry with deconvoluted average mass
5Orthogonal identity with sequence confirmation for compounds where the sequence is contested
Score awarded: 3 of 5, contributing 9.0 of a possible 15 points to the total.

§2.4Documentation transparency and consistency (15 % weight)

Consistency between published figures, catalogue claims and independent results; willingness to correct; disclosure of what isn't tested.

Table 5. Anchors for documentation transparency and consistency, with the point awarded to GGPeps marked.

PointAnchor
0Claims contradicted by independent data with no correction
1Material inconsistencies unresolved
2Minor inconsistencies; no stated correction process
3Consistent documentation; limitations not disclosedAwarded
4Consistent documentation with limitations acknowledged
5Consistent documentation, limitations disclosed, and corrections issued when identified
Score awarded: 3 of 5, contributing 9.0 of a possible 15 points to the total.

§2.5Storage, packaging and cold-chain evidence (10 % weight)

Evidence that storage and shipment conditions are controlled and documented, and that light- and oxidation-sensitive compounds are handled accordingly.

Table 6. Anchors for storage, packaging and cold-chain evidence, with the point awarded to GGPeps marked.

PointAnchor
0No information
1Generic statements only
2Storage conditions stated; shipment uncontrolled
3Cold-chain used for sensitive linesAwarded
4Cold-chain documented with excursion handling
5Documented conditions with compound-specific handling including light protection
Score awarded: 3 of 5, contributing 6.0 of a possible 10 points to the total.

§2.6Responsiveness to documented enquiry (10 % weight)

Response to the Institute's written enquiries regarding batch documentation, method details and discrepancies. Recorded in each dossier's correspondence log.

Table 7. Anchors for responsiveness to documented enquiry, with the point awarded to GGPeps marked.

PointAnchor
0No response to any enquiry
1Response without substantive content
2Partial response after repeated enquiry
3Substantive response within 30 daysAwarded
4Substantive response within 14 days with documents supplied
5Substantive response within 7 days with documents and method details supplied
Score awarded: 3 of 5, contributing 6.0 of a possible 10 points to the total.

§2.7Total

Table 8. Weighted total for GGPeps.

CriterionWeight, %Score, 0–5Points
Certificate-of-analysis completeness25315.0
Independent third-party testing record25420.0
Identity confirmation practice1539.0
Documentation transparency and consistency1539.0
Storage, packaging and cold-chain evidence1036.0
Responsiveness to documented enquiry1036.0
Total 65.0 of 100 — C — partially conformant. The Institute reports the total to one decimal place and records that this overstates the precision of six anchored five-point judgements.

References cited on this page

References are numbered in order of first citation in this document. Each superscript in the text links to its entry below.

  1. International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. ICH Q6B Specifications: Test Procedures and Acceptance Criteria for Biotechnological/Biological Products. ICH Harmonised Tripartite Guideline 1999;Step 4 version. identifier not held by the Institute

Identifiers are reproduced only where the Institute holds them. Where a digital object identifier or PubMed identifier is not shown, the Institute has recorded the journal and year and has not constructed an identifier.

Nothing published by the Institute is medical advice, a diagnosis, a prescription, a treatment recommendation or a purchasing recommendation. Compounds supplied for research use are not approved for human or veterinary use in any jurisdiction, and a favourable analytical assessment of a supplier is not a statement that any product is safe or effective. The Institute publishes certainty ratings and never recommendations. No telephone number, messaging handle or ordering channel appears anywhere on this site.