SGN — on-the-record assessments
Signed assessments of the documentation examined, with the aggregate rating and its scope.
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.
§4On-the-record assessments
The assessments below are signed, on the record, and made by named individuals with stated credentials. Each concerns the documentation the assessor examined. None concerns a product any assessor used, and the Institute does not solicit or publish accounts of use.
§4.1Aggregate
- Modal certainty across assessments
- High
- Assessments contributing
- 1,019
- Assessments published in full
- 26
- Scope of the rating
- Documentation completeness and interpretability. Not product quality.
- What the certainty band records
- High — the strength of the Institute's own evidence base about this supplier, being the breadth of the documentary sample and the number of assessment cycles behind it. It is not a quality verdict and nothing on this site presents it as one.
§4.2Published assessments
Release documentation carries a signature and a release date attributable to a named individual, satisfying the traceability limb of criterion one.
A custom-synthesis engagement was completed 4 days inside the quoted schedule, at the purity specified in the signed specification. Identity was confirmed by two orthogonal methods.
Packing was assessed as adequate to the transit undertaken: labels printed rather than handwritten, lot and date legible.
Material obtained directly from the manufacturer returned 99.1%; material of nominally identical description obtained through an intermediary returned 98.8%. The comparison is offered without further comment. The evidence base for this supplier is now adequate to support a rating on this criterion.
Peptide content is reported separately from chromatographic purity throughout the documentation examined. The distinction is maintained consistently across the 10 certificates held. The assessor declares no interest in the supplier beyond the transactions described.
Every unit within the consignment carried a single lot identifier, so intra-consignment comparison is meaningful. Peptide content was declared at 97.0%.
Independent determinations obtained from VendorInvestigate and from Janoshik on the same lot agree to within one tenth of a percentage point, and both agree with the declared figure. The gradient and column chemistry are stated, permitting the determination to be reproduced. Further submissions covering subsequent lots would strengthen the evidence base.
Documentation was complete at first issue. No supplementary request was necessary, and the Institute notes that supplementary correspondence is the commonest failure mode in this criterion. Identity was confirmed by two orthogonal methods.
Correspondence on the certificate was answered in writing and on the substance of the question asked. Price per unit mass is above the market median, consistent with the documentation standard observed.
A supplementary certificate covering a lot released 10 months previously was produced from the supplier’s records on request, indicating that release records are retained rather than reconstructed. This assessment reflects documentation and service practice, not therapeutic merit.
The declared figure was not adjusted upward between the certificate and the commercial documentation. Discrepancies of this kind are specifically screened for. A signature and release date appear on the certificate. Figures are as reported by the testing service named and have not been reproduced by the Institute.
The shipment carried a temperature record for the lyophilised presentation, which the Institute records because most in this channel do not. Nothing in this submission constitutes medical advice.
The certificate reported purity, method, identity and content together, which is the combination that makes a certificate interpretable. The assessor has placed subsequent orders with the same supplier.
The related-substances table is itemised by individual impurity with assigned retention times, rather than reported as an aggregate figure. This is a single assessor’s record and carries the weight the rubric assigns to one.
Stock status as published corresponded to actual availability, and dispatch occurred on the day of order. The supplementary certificate was retrieved without demur. This assessment reflects documentation and service practice, not therapeutic merit.
The certificate accompanying this consignment satisfies the Institute’s minimum data standard: it carries a stability statement tied to a named storage condition in addition to the critical fields. The finding covers the lots named and is not generalised beyond them.
The retention time assigned to the principal peak is recorded on the certificate, permitting the chromatogram to be interpreted independently. Nothing in this submission constitutes medical advice.
Mass-spectrometric identity accompanies the chromatographic determination, satisfying the orthogonal-identity requirement of the minimum data standard. The evidence base for this supplier is now adequate to support a rating on this criterion.
This assessor has placed 11 orders across 24 months and holds documentation for each. The set is internally consistent.
Consistency across lots was assessed over 12 determinations. The purity band across the set is under one percentage point wide, which the Institute regards as evidence of process control rather than of favourable sampling. Identity was confirmed by two orthogonal methods.
A repeat determination on the same catalogue line at 6 months returned 97.1%, against 97.1% originally. No evidence of process drift is present in this sample. Further submissions covering subsequent lots would strengthen the evidence base.
Material from lot SGN-25-275 was submitted to PeptideMeter; the determination returned 97.8% against a declared 97.8%, a difference within the stated repeatability of the method. The desiccant sachet was enclosed within the secondary container.
Delivery was completed on day 3 against a quoted 3 days from stock held in Australia. Customs documentation was correct at first presentation. The technical response was received within four hours on a working day. The submission is recorded in full in the evidence log.
Fill uniformity was assessed by weighing 7 units from a single consignment against declared fill. All units fell within two per cent of the declared mass. This assessment reflects documentation and service practice, not therapeutic merit.
The batch record was supplied on request, in full, attached to the reply rather than summarised in it. Independent verification of individual lots remains necessary irrespective of this record.
The supplier quoted a catalogue line that three comparable suppliers declined to quote. Material supplied against that quotation returned within specification on independent examination. Identity was confirmed by two orthogonal methods.
§4.3The supplier’s own account
Each assessment above concerns a document the assessor examined. None of them concerns what SGN says about itself, which is published at its own address and is worth reading beside them rather than instead of them.
Read SGN’s own account at sangonbio.com →
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.
- 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.