Detection:UV-DAD at 220 nm (bandwidth 4 nm, ref. 360 nm)
Injection:20 μL, sample conc. 0.5 mg/mL in 0.1% TFA/H₂O
Data Processing:Agilent OpenLAB CDS ChemStation Rev. C.01.10
2. System Suitability Test (SST)
Parameter
Acceptance Criteria
Result
Status
Theoretical Plates (N)
≥ 2000
17949
PASS
Tailing Factor (T)
0.8 – 1.5
1.01
PASS
Repeatability RSD (n=6)
≤ 1.0%
0.45%
PASS
Resolution (Rs)
≥ 1.5
3.5
PASS
3. Purity & Assay Results
Test Item
Specification
Result
Status
Appearance
White to off-white lyophilized powder
Conforms
PASS
Identification (FTIR)
Consistent with reference spectrum
Consistent
PASS
Purity (RP-HPLC, area%)
≥98%
98.8%
PASS
Assay (Potentiometric Titration)
98.0% – 102.0%
100.6%
PASS
Moisture (Karl Fischer, V-30S)
≤ 1.0%
0.46%
PASS
Largest Single Impurity
≤ 0.50%
0.23%
PASS
Total Impurities
≤ 2.0%
1.20%
PASS
Specific Rotation [α]²⁰D
Literature value ± 2.0°
−12.4° (c=1, DMF)
PASS
Residual Solvents (GC-FID/HS, per ICH Q3C R8)
DMF (Class 2)
≤ 880 ppm
89 ppm
PASS
DCM (Class 2)
≤ 600 ppm
28 ppm
PASS
Methanol (Class 2)
≤ 3000 ppm
317 ppm
PASS
Acetonitrile (Class 2)
≤ 410 ppm
15 ppm
PASS
Ethyl Acetate (Class 3)
≤ 5000 ppm
122 ppm
PASS
4. HPLC Chromatogram
Fig. 1: RP-HPLC chromatogram of Collagen Peptides Type II Raw Powder (Batch: COA-RP0091-5469). Main peak RT = — min, Area% = 98.8%. UV detection at 220 nm.
1. Analytical Method & Instrumentation
Standard:ICP-MS per ICH Q3D(R2) / USP <232> <233>
Instrument:Agilent 7900 ICP-MS (SN: JP15935) with He collision mode
Sample Preparation:Closed-vessel microwave digestion (CEM MARS 6): 35.3 mg + 5 mL HNO₃ (suprapure) + 1 mL H₂O₂ (30%)
Digestion Program:Ramp 20 min → 200°C, hold 15 min, cool to RT, dilute to 50.0 mL (Milli-Q)
Stability Conclusion: This product remains within all specifications under both accelerated conditions (40°C/75% RH) and long-term conditions (25°C/60% RH). Recommended shelf life: 24 months when stored at -20°C, desiccated, protected from light.
GMP
★P.R. CHINAGMP
Good Manufacturing Practice Certificate
Certificate of GMP Compliance
Cert. No.: CN-GMP-HN-244325-2026
This is to certify that
Hunan Aslsen Technology Co., Ltd. (Homopeptide)
Address: High-Tech Industrial Development Zone, Changsha, Hunan Province, 410205, P.R. China
Following inspection, the above facility is certified to be in compliance with the Good Manufacturing Practice for Pharmaceutical Products (2010 Revision) for the manufacture of active pharmaceutical ingredients (APIs).
Scope: Active Pharmaceutical Ingredients (Synthetic Peptides, Peptide APIs, Research-Grade Peptides, Chemical Synthesis Intermediates)
Issue Date:2024-03-15
Valid Until:2029-03-14
Audit Body:National Medical Products Administration (NMPA)
Audit Ref.:NMPA-GMP-2875-2024
NMPA
★
GMP Certified
Dr. J. Chen
Lead Auditor, NMPA
Auditor No.: NMPA-AUD-8414
ISO
SGS
QUALITY MANAGEMENT SYSTEM
ISO 9001:2015
Certified by SGS United Kingdom Ltd.
UKAS
Certificate of Registration
Certificate No.: GB24/070340
The management system of
Hunan Aslsen Technology Co., Ltd. (Homopeptide)
has been assessed and certified as meeting the requirements of ISO 9001:2015
for the following scope:
Research, development, manufacture and supply of synthetic peptides, peptide APIs, pharmaceutical raw materials, and research-grade compounds for pharmaceutical and biotech industries.
Initial Certification:2019-06-22
Current Certification:2025-06-22
Expiry Date:2028-06-21
Audit Reference:SGS-QMS-676508
SGS Systems & Services
✦
Certification Body
J. Richardson
General Manager, SGS UK
UKAS Accreditation No. 014
CNAS
CHINA NATIONAL ACCREDITATION SERVICE
ISO/IEC 17025:2017
Laboratory Accreditation Certificate
Accreditation No.: CNAS L16281
Hunan Aslsen Technology Co., Ltd. — Quality Control Center
The above laboratory has been assessed by CNAS and found to comply with the requirements of ISO/IEC 17025:2017 — General requirements for the competence of testing and calibration laboratories.
Certificate Verification Scan QR code or visit https://verify.homopeptide.net/COA-RP0091-5469 SHA-256: 2659950acedc656b... Certificate archived via blockchain — legally binding
Conclusion
All test items of this batch meet the in-house quality specification (HP-QS-RP0091-2026) and comply with USP-NF and EP 11.0 pharmacopoeial requirements. Product quality APPROVED — released for distribution.