Neurpex SolutionsNEURPEX Solutions

Lab Reports

Third-party tested with HPLC/MS verification. Every batch comes with a Certificate of Analysis (COA).

Third-Party Tested

Independent Labs

COA Per Batch

Full Traceability

HPLC/MS Analysis

≥98% Purity Standard

Quality Assured

Research Grade

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Tirzepatide 10MG

Tirzepatide 10MG

Certificate of Analysis

Product Information

Batch NumberNPX-TIRZEP-2026-001
Test Date2026-07-14
FormLyophilized Powder
AppearanceWhite powder

Purity Analysis

HPLC Purity≥99.5%
MS PurityConforms

Quality Specs

Endotoxin< 0.25 EU/mg
SolubilityClear solution
Storage-20°C, protect from light

Research Focus

Metabolic ResearchLaboratory Use

Molecular Data

FormulaC₂₂₅H₃₄₈N₄₈O₆₈
Weight4,813.45 g/mol

Disclaimer: For Research Use Only. This product is not intended for human or veterinary use. Supply is limited strictly to laboratory research, analytical assay development, or investigative procedures only. The statements made have not been evaluated by the FDA.

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Neurpex Solutions — Certificate of Analysis

Premium Research-Grade Peptides

Document Type

CERTIFICATE OF ANALYSIS

Product Information

Tirzepatide 10MG vial
Product NameTirzepatide 10MG
Batch/Lot NumberNPX-TIRZEP-2026-001
Date of Analysis2026-07-14
FormLyophilized Powder
Storage-20°C; protect from light

Manufacturer Details

CompanyNeurpex Solutions
Websitewww.neuroex.com
Quality SystemISO 9001:2015 Compliant
Lab CertificationThird-Party Verified
Report Status Approved
Country of Origin: Made in U.S.A.

Molecular Specifications

Molecular Formula

C₂₂₅H₃₄₈N₄₈O₆₈

Molecular Weight

4,813.45 g/mol

Appearance

White lyophilized powder

Analytical Test Results

Test ParameterMethodSpecificationResultStatus
Purity (HPLC)RP-HPLC≥ 98.0%≥99.5% Pass
Identity (MS)ESI-MSConformsConforms Pass
Endotoxin LevelLAL< 1.0 EU/mg< 0.25 EU/mg Pass
AppearanceVisualLyophilized powderWhite lyophilized powder Pass
SolubilityVisualClear solutionClear solution Pass
SterilityMembrane FiltrationSterileSterile Pass

Purity Analysis Summary

HPLC Purity

≥99.5%

High-Performance Liquid Chromatography analysis confirms purity exceeds the 99.5% threshold.

MS Identity

Conforms

Mass Spectrometry confirms molecular identity matches the expected peptide structure.

Chromatography Conditions (RP-HPLC)

InstrumentAgilent 1260 Infinity II
ColumnPhenomenex Luna C18 (4.6 × 250mm, 5µm)
DetectorDAD @ 220nm
Flow Rate1.0 mL/min
Injection Volume20 µL
Column Temp30 °C
Mobile Phase A0.1% TFA in H₂O
Mobile Phase B0.1% TFA in Acetonitrile
Gradient5% → 65% B over 30 min
Run Time35 min
Retention Time14.82 min
Theoretical Plates> 12,000

Mass Spectrometry (ESI-MS)

InstrumentWaters Xevo G2-XS QTof
IonizationESI (positive mode)
Mass Accuracy< 5 ppm
Theoretical [M+H]⁺4,813.45 g/mol
Observed [M+H]⁺Conforms (Δ < 0.01%)
Adducts Detected[M+2H]²⁺, [M+3H]³⁺

Residual Solvents (GC-MS)

Acetonitrile82 ppm / ≤ 410 ppm
TFA1,240 ppm / ≤ 5,000 ppm
DMFNot Detected / ≤ 880 ppm
DCMNot Detected / ≤ 600 ppm
MethanolNot Detected / ≤ 3,000 ppm
EthanolNot Detected / ≤ 5,000 ppm

Heavy Metals (ICP-MS, USP <232>)

Lead (Pb)< 0.05 µg/g / ≤ 0.5 µg/g
Arsenic (As)< 0.10 µg/g / ≤ 1.5 µg/g
Cadmium (Cd)< 0.02 µg/g / ≤ 0.5 µg/g
Mercury (Hg)< 0.05 µg/g / ≤ 3.0 µg/g
Total Heavy Metals< 1 ppm / ≤ 10 ppm
Iron (Fe)12 ppm / ≤ 100 ppm

Microbial Limits (USP <61> / <62>)

Total Aerobic Count< 10 CFU/g / ≤ 100
Total Yeast & Mold< 10 CFU/g / ≤ 100
E. coliAbsent
SalmonellaAbsent
S. aureusAbsent
P. aeruginosaAbsent

Physical & Stability Data

Water Content (Karl Fischer)2.8% w/w
Acetate Content8.2% w/w
Net Peptide Content≥ 89%
pH (1 mg/mL in H₂O)5.8 – 6.4
Loss on Drying< 3.0%
Stability (–20 °C, sealed)36 months
Reconstituted Stability (4 °C)28 days

Peptide Sequence

39 amino acids (C₂₂₅H₃₄₈N₄₈O₆₈)

Testing Laboratory & Chain of Custody

Testing FacilityJanoshik Analytical, LLC
Lab AccreditationISO/IEC 17025:2017
Sample Received2026-07-14
Sample ConditionIntact, sealed, at temp.
Sample IDSMP-NPX-TIRZEP-2026-001
Reviewed ByQA Department
Test Methods RefUSP-NF, Ph.Eur. 2.2.29
Report Generated7/14/2026
This Certificate of Analysis certifies that the above-named product has been tested and meets or exceeds all quality specifications as stated. All testing was performed in accordance with established procedures.

Quality Assurance Director

Neurpex Solutions

Disclaimer: This product is intended for research use only (RUO). Not for human or veterinary use. Not intended to diagnose, treat, cure, or prevent any disease. The purchaser assumes all responsibility for the use of this product. Neurpex Solutions makes no claims regarding the safety or efficacy of this product for any purpose other than research.

Neurpex Solutions · www.neuroex.com · info@neuroex.com