Clarion LaboratoriesCertificate verification

Verification result

Genuine certificate

Report CL-26-00002 matches the laboratory's record. It was issued on 24 September 2026 and has not been withdrawn.

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Report number
CL-26-00002
Verification key
D5YX-SGY4-5VBN
Issued
24 September 2026
Client
Hughes Research
Sample
Retatrutide 10mg
Analysis
GLP-1 analogue analysis

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Clarion Laboratories

Certificate of Analysis

CL-26-00002

Issued 24 September 2026

Clarion Laboratories · CLARION LABS LTD · Company number 16827922 · info@clarionlaboratories.co.uk · clarionlaboratories.co.uk

Sample and client

Client
Hughes Research
Sampleas labelled
Retatrutide 10mg
Batch or lot
RT-0926
Label claim
10 mg
Report number
CL-26-00002
Order reference
CO-26-00002
Sample ID
S-26-00002
Order placed
15 September 2026
Received at lab
18 September 2026
Analysis completed
23 September 2026
Description
Lyophilised powder, 3 ml vial, grey cap.
Analysis requested
GLP-1 analogue analysis

Summary of results

Compound identified

Retatrutide

Purity

97.96%

Content per vial

9.68mg

Results

  • Compound identifiedRetatrutide

    Method: LC-MS (ESI+)

    Observed 4731.4 Da, expected 4731.3 Da

  • Purity97.96%

    Method: HPLC-UV, 214 nm, peak area

  • Content per vial9.68mg

    Method: HPLC-UV against reference standard

    96.8% of the 10 mg label claim

Authorisation

Analysed by

Test Analyst

Analyst

23 September 2026

Signed electronically

Reviewed and approved by

Test Reviewer

Senior analyst

24 September 2026

Approved electronically

Verify this report

Scan the code with a phone camera, or go to clarionlaboratories.co.uk/verify and enter the report number shown here.

Report number
CL-26-00002
Verification key
D5YX-SGY4-5VBN

Only trust results shown on clarionlaboratories.co.uk.

Clarion Laboratories | Report CL-26-00002 | Page 1 of 2clarionlaboratories.co.uk

Analytical data

Certificate of Analysis CL-26-00002

Chromatogram

Chromatogram, UV 214 nm, run RUN-260921-02024681012141618200100200300400Retention time (min)Absorbance (mAU)Retatrutide13.18 min13

UV 214 nm chromatogram from run RUN-260921-02: 1001 recorded points from 0 to 20 minutes. 3 integrated peaks. Main peak 2 (Retatrutide) at 13.18 minutes, 97.96% of total peak area.

Figure 1. UV 214 nm chromatogram. Run RUN-260921-02, acquired 21 September 2026.

Peak table

PeakRT (min)AreaArea %
112.3670.61.28
2Retatrutide13.185380.597.96
313.7141.50.76
Total5492.6100.00

Main peak: peak 2 (Retatrutide). Its area % (97.96 %) is the purity reported on page 1. The total row adds up the values in this table.

Method and instrument

Instrument
HPLC-UV (test record)
Column
C18 reversed phase (test record)
Detector
UV 214 nm
Compound identified
LC-MS (ESI+)
Purity
HPLC-UV, 214 nm, peak area
Content per vial
HPLC-UV against reference standard

Data integrity

Instrument export file
2026-09-21_S-26-00002_inj1.csv
SHA-256 of export file
ed280fe0c9fcf8adcb8416907a13ef4546bceeaf9e0b4030c4db04454a355334
Run ID
RUN-260921-02
Acquired
21 Sept 2026, 12:05

The figure and peak table are drawn from this file as exported by the instrument. Nothing is smoothed, re-integrated or edited.

Statements

  • Results relate only to the sample as received by the laboratory.
  • This report may only be reproduced in full.
  • For research use only.
  • This report is not a certificate of conformity.
  • Check any copy of this report at clarionlaboratories.co.uk/verify.
Clarion Laboratories | Report CL-26-00002 | Page 2 of 2clarionlaboratories.co.uk

Sample photographs

The vial as the laboratory received it. Each picture is marked with this report's number and verification key, so the same picture on any other report would show the wrong number.

Checking for photographs

Data integrity

Fingerprints that let anyone check the files have not changed.

Certificate PDF

SHA-256 fingerprint
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Instrument data

Instrument export file
2026-09-21_S-26-00002_inj1.csv
SHA-256 of export file
ed280fe0c9fcf8adcb8416907a13ef4546bceeaf9e0b4030c4db04454a355334
Run ID
RUN-260921-02

The chromatogram and peak table are drawn only from the instrument's own export file. Its fingerprint is recorded when the file is stored, so any later change to the file would show.

Release record

Who analysed the sample and who approved the certificate.

Analysed by
Test Analyst, AnalystAnalysis completed 23 September 2026
Reviewed and approved by
Test Reviewer, Senior analyst
Issued at
24 Sept 2026, 12:20 (UK time)

Two different people sign off every certificate: the analyst who records the results, and a second analyst who reviews them before release.