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 · §5

Homopeptide — correspondence log

Every enquiry the Institute made, why it made it, and the outcome, including enquiries that received no answer.

Document identifier
CEI-SD-08/5
Series
Supplier dossier
Version
1.3
Published
07 Mar 2026
Last reviewed
07 Jun 2026
Next review
07 Jun 2027
Identifier
10.71829/cei.supp.8
Certainty
Not rated
Cycle
2026 Q1
Assessment score
93.0 / 100
Conformance
A

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.

§5Correspondence log

The Institute records every enquiry it makes to a supplier and the outcome of each, including enquiries that received no answer. A dossier that reports only the information a supplier chose to supply presents the supplier's disclosure decision as the Institute's assessment.

§5.1Enquiry log

Table 3. Correspondence between the Institute and Homopeptide, in date order.

SentSubjectWhy the Institute askedOutcomeDays to reply
07 Dec 2025Request for counter-ion and water determination on a named batchWithout both, a mass balance cannot be formed and the delivered peptide mass cannot be established.Answered in full14
21 Jan 2026Request for the batch identifier linking a certificate to supplied materialA certificate that cannot be linked to material in hand is a specimen document.Answered in full18
11 Mar 2026Request for an orthogonal identity confirmationRetention-time correspondence alone does not distinguish a deletion sequence or a stereochemical variant.Answered in part4
3 enquiries recorded. Correspondence was conducted by the Institute's secretariat in writing. The Institute holds no telephone contact and uses no messaging channel.

§5.2Right of reply

Hunan Aslsen Technology Co., Ltd. was sent this dossier in draft and given twenty-eight days to respond before publication. A response is published in the supplier's own words where one is received. The Institute corrects errors of fact on evidence and does not alter a judgement because a supplier disagrees with it; a disagreement is published alongside the judgement so that a reader can weigh both.[1]

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 Organization for Standardization. ISO/IEC 17025:2017 General Requirements for the Competence of Testing and Calibration Laboratories. ISO/IEC Standard 2017;3rd edition. 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.