Retatrutide
High-purity Retatrutide analytical reference material — 39-amino acid synthetic peptide with C20 diacid fatty acid modification, filler-free lyophilized powder with comprehensive documentation
HPLC Purity
BVR verified
Peptide Content
BVR verified
Molecular Weight (Da)
ESI-MS confirmed
Fillers Added
No mannitol or bulking
Endotoxin & Microbial Tested
Australian Laboratory Supply
CAS 2381089-83-2
Product Overview
Aventris Labs supplies research-grade Retatrutide (CAS 2381089-83-2) as an analytical reference standard. This synthetic 39-amino acid peptide (C₂₂₁H₃₄₂N₄₆O₆₈, 4731.33 Da) features a C20 diacid fatty acid modification. Manufactured using solid-phase peptide synthesis (SPPS) with comprehensive analytical verification including residual solvents, endotoxins, and microbial limits testing.
Primary applications: Reference standard for method development, analytical validation, peptide characterisation studies, and comparative quality control.
Documentation Included
- Batch Verification Report (BVR) – Complete batch-specific analytical data compiled by Aventris Labs
- HPLC chromatography – 99.37% purity with retention time data
- Mass spectrometry (ESI-MS) – Molecular weight confirmation (4731.40 Da)
- Peptide content assay – 92.19% by nitrogen analysis
- Assay (HPLC) – 99.45% on anhydrous, salt-free basis
- Amino acid analysis – Complete composition verification
- Karl Fischer water content – 3.58%
- Residual solvents results – All solvents below detection limits
- Microbial limits results – Total aerobic and yeast/mold counts compliant
- Bacterial endotoxins – Conforms (<10EU/mg)
- Batch verification portal – QR code and online lookup system
Analytical Data (Batch Verification Report)
The following data represents typical batch results. Your batch-specific values are available in your Batch Verification Report (BVR) via the verification portal.
| Parameter | Result | Specification | Status |
|---|---|---|---|
| Purity (HPLC) | 99.37% | ≥98.0% | PASS |
| Peptide Content | 92.19% | ≥85.0% | PASS |
| Molecular Weight (ESI-MS) | 4731.40 Da | 4731.33 ±1.0 | PASS |
| Assay (HPLC) | 99.45% | 95.0-105.0% | PASS |
| Water Content (Karl Fischer) | 3.58% | ≤10.0% | PASS |
| pH (5.0mg/mL) | 7.25 | 6.0-8.0 | PASS |
| Solubility (water) | Conforms | ≥30mg/mL | PASS |
| Acetate Content | N.D. | ≤15.0% | PASS |
| TFA Content | N.D. | ≤0.5% | PASS |
| Sodium Salt | 1.79% | <5.0% | PASS |
| Bacterial Endotoxins | Conforms | <10EU/mg | PASS |
| Microbial Limits | Conforms | Per specification | PASS |
Residual Solvents Results
| Solvent | Result | Limit | Status |
|---|---|---|---|
| Acetonitrile | N.D. | ≤410ppm | PASS |
| Methanol | N.D. | ≤3000ppm | PASS |
| Methylene Chloride | N.D. | ≤600ppm | PASS |
| N,N-Dimethylformamide | N.D. | ≤880ppm | PASS |
| Isopropyl Ether | N.D. | ≤5000ppm | PASS |
Peptide Sequence
| Sequence Length | 39 amino acids with C20 diacid fatty acid modification |
| Molecular Formula | C₂₂₁H₃₄₂N₄₆O₆₈ |
| Molecular Weight | 4731.33 Da (theoretical) / 4731.40 Da (observed) |
| CAS Number | 2381089-83-2 |
| Source | Synthetic peptide |
| Synthesis Method | Solid-phase peptide synthesis (SPPS) |
Ordering Information
Package Contents
10mg Retatrutide lyophilized powder in sealed glass vial with batch-specific labeling and QR verification code. No fillers, mannitol, or bulking agents added.
Batch Verification Report
Complete BVR with HPLC purity, mass spectrometry, peptide content, amino acid analysis, endotoxins, and microbial limits data accessible via QR code or online verification portal at aventrislabs.com/verify.
Australian Express Shipping
Fast domestic express shipping Australia-wide. If your order doesn’t arrive, we reship free — no questions asked.
Tier Pricing Available
Volume discounts for research facilities and repeat orders. Contact for institutional pricing and bulk quantities.
Quality & Verification
Batch Verification Report (BVR)
Every batch includes comprehensive analytical documentation through Aventris Labs’ verification system, presenting all manufacturer analytical data in a standardised format for full transparency.
Filler-Free Guarantee
Aventris peptides contain zero fillers. No mannitol, no bulking agents — just pure lyophilized peptide. The powder may appear smaller than competitors’ products because there’s nothing added to artificially increase volume.
Online Verification Portal
Instant batch verification via QR code or manual lookup. Access your batch-specific BVR anytime at aventrislabs.com/verify.
Australian Laboratory Supply
Aventris Labs is an Australian supplier providing research-grade peptide reference materials to universities and biotech laboratories nationwide.
Complete Specifications
| Product Name | Retatrutide |
| Description | Synthetic 39-amino acid peptide with C20 diacid fatty acid modification |
| CAS Number | 2381089-83-2 |
| Molecular Formula | C₂₂₁H₃₄₂N₄₆O₆₈ |
| Molecular Weight | 4731.33 Da (ESI-MS verified: 4731.40 Da) |
| Sequence Length | 39 amino acids with fatty acid modification |
| Physical Form | White to off-white lyophilized powder |
| Amount per Vial | 10mg (net peptide content) |
| Purity (HPLC) | 99.37% (typical, ≥98% specification) |
| Peptide Content | 92.19% (typical, ≥85% specification) |
| Assay (HPLC) | 99.45% (typical, 95-105% specification) |
| Water Content | 3.58% (typical, ≤10% specification) |
| Solubility | ≥30mg/mL in water |
| Storage Conditions | Cool, dry place protected from light; -20°C for extended storage |
| Shelf Life | 24 months when stored properly (retest date on BVR) |
| Intended Use | Analytical Reference Standard / Research Use Only |
| Regulatory Status | Not for human or veterinary use; laboratory research only |
Frequently Asked Questions
Product Specifications
What is Retatrutide?
Retatrutide (CAS 2381089-83-2) is a synthetic 39-amino acid peptide with a molecular formula of C₂₂₁H₃₄₂N₄₆O₆₈ and a molecular weight of 4731.33 Da. It features a C20 diacid fatty acid modification and non-standard amino acid residues including Aib and α-Me-Leu. This product is supplied strictly as an analytical reference standard for laboratory research.
What analytical data is provided?
Each batch includes a comprehensive Batch Verification Report (BVR) containing all manufacturer analytical data: HPLC purity (99.37%), peptide content (92.19%), ESI-MS molecular weight confirmation (4731.40 Da), assay (99.45%), amino acid analysis, Karl Fischer water content (3.58%), pH measurement, solubility confirmation, residual solvents results, bacterial endotoxins, and microbial limits results. Access via QR code or online verification portal.
How do I verify my batch?
Three methods: (1) Scan QR code on product label, (2) Click verification link in order confirmation email, (3) Visit aventrislabs.com/verify and enter batch ID. All provide instant access to your batch-specific Batch Verification Report with complete analytical data.
Why does the powder look smaller than other suppliers?
Aventris peptides are filler-free. Many suppliers add mannitol or other bulking agents to make the powder appear larger in the vial. Our vials contain only pure lyophilized peptide — nothing else. Less visible powder actually means a purer product with no unnecessary additives. Learn more at aventrislabs.com/peptide-fillers-explained.
What is the shelf life?
Typically 24 months when stored in sealed vial at -20°C or below, protected from light and moisture. Specific retest date listed on Batch Verification Report.
What is the CAS number for Retatrutide?
Retatrutide has CAS number 2381089-83-2. This is confirmed in the Batch Verification Report along with molecular formula (C₂₂₁H₃₄₂N₄₆O₆₈) and molecular weight (4731.33 Da).
Regulatory & Compliance
What is the regulatory status of Retatrutide in Australia?
Retatrutide is supplied for research use only. It is NOT approved for human consumption, therapeutic use, veterinary applications, or diagnostic procedures. Purchasers are responsible for ensuring compliance with all applicable regulations.
Does Aventris provide research protocols or application guidance?
No. Aventris supplies analytical reference materials only. We do not provide reconstitution protocols, application methods, dosing information, or research design guidance. Researchers must develop protocols based on scientific literature and appropriate oversight. For technical science questions, resources such as Grok AI can assist with research-level inquiries.
Regulatory Disclaimer – Analytical Reference Material
Retatrutide is supplied as an analytical reference standard for research use only.
NOT for:
- Human consumption, administration, or therapeutic use
- Veterinary or animal health applications
- Diagnostic procedures
- Clinical trials or medical research involving human subjects (without appropriate approvals)
- Food, cosmetic, or dietary supplement applications
- Personal or consumer use of any kind
Purchaser Responsibilities:
- Verify compliance with all applicable federal, state, and local regulations
- Maintain proper laboratory safety and handling procedures
- Ensure appropriate storage, documentation, and chain of custody
- Use only for legitimate analytical/research purposes as intended
Aventris Labs Does NOT Provide:
- Medical, therapeutic, or health-related advice
- Dosing recommendations or administration protocols
- Reconstitution instructions or methods
- Research design or experimental methodologies
Order Retatrutide Analytical Reference Material
High-purity 39-amino acid synthetic peptide analytical reference material. Every order includes complete Batch Verification Report (BVR) with endotoxin and microbial testing, batch verification portal access, filler-free guarantee, and Australian domestic express shipping with free reship guarantee.
