3rd-party lab tested RETA PEN 40mg
Pre-filled 40 mg reference-grade pen. For in-vitro use only.
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Reference-grade compound, packed for the lab.
- 1× RETA PEN 40mg (40 mg pre-filled)
- Handling accessories (needles & alcohol swabs)
- Storage & handling insert
- Batch-matched Certificate of Analysis
- Free UK 24h tracked shipping, validated 96 hours
- Strictly for in-vitro use — not for human or veterinary use
Reference-grade data for your protocol.
| Compound | Reta (reference peptide) |
| CAS number | 2381089-83-2 |
| Molecular formula | C221H343N51O58 |
| Molecular weight | 4731.34 g/mol |
| Purity method | HPLC · ≥99% (batch COA) |
| Presentation | Pre-filled auto-injector · 40 mg total content |
| Physical form | Sterile liquid · clear, colorless |
| Storage | 2–8 °C · protect from light · do not freeze |
| Shelf life | 24 months from batch date · in-use 28 days at 2–8 °C |
| Batch / Lot | Batch-specific · listed on the shipped COA |
Reported areas of investigation.
These reference-grade compounds are supplied strictly for in-vitro laboratory research. Reported research areas include receptor pharmacology, cell-line assays and comparative in-vitro studies.
| Category | Reported use in literature |
|---|---|
| Receptor pharmacology | In-vitro binding & activation assays on cultured receptor lines |
| Cell-line assays | Comparative in-vitro characterisation |
| Analytical reference | Chromatographic and mass-spec identity standards |
| Stability studies | Formulation and cold-chain stability research |
Reference materials only
PeptidesVerified does not publish dosing schedules, titration protocols, reconstitution instructions or any application guidance. All product information is limited to analytical identity, purity and handling.
Reference information for laboratory research only. Not a recommendation for human or veterinary use. No application, dosing or administration guidance is provided.
Third-party independently lab tested.
Every batch is analysed by an ISO/IEC 17025 accredited independent laboratory before dispatch. The signed COA travels with your order — tap a certificate to view it.
For laboratory research use only
PeptidesVerified supplies reference-grade research compounds exclusively to qualified researchers and laboratories for in-vitro and laboratory research. These products are not for human or veterinary use, are not medicines, supplements or therapeutic products, and have not been evaluated by the FDA or MHRA. No medical, therapeutic or human-use claims are made. Buyers confirm they are 21+ and purchasing for legitimate research purposes.
Compound information.
RETA PEN 40mg
Stability
Why researchers choose us.
Third-party lab tested
Every batch HPLC-verified by an independent ISO 17025 lab; signed COA with each order.
free UK 24h dispatch
Shipped from the UK, cold-chain packed and validated for 96 hours in transit.
Multiple payment methods
Card processors, bank transfer (BACS · SEPA · SWIFT) — never dependent on one provider.
Direct support
Quotes, batch COAs and order tracking handled directly over WhatsApp.
Pay the way that works for your lab.
Business-to-business invoicing across multiple processors and settlement rails so your supply is never interrupted. Payment details are shared privately after your enquiry.
Visa, Mastercard and American Express accepted through multiple processors. You receive a private secure link — no card details entered on this site.
Business-to-business invoicing for UK labs, EU institutions and international customers. Multi-currency settlement — no card fees on your side.
Frequently asked.
Are these products for human or animal use?
Do you provide dosing, administration or protocol instructions?
Is it really independently lab tested?
What payment methods do you accept?
How does quantity pricing work?
How fast is shipping?
How should the pens be stored?
For laboratory research use only
All materials offered by PeptidesVerified Ltd, trading as PeptidesVerified, are supplied strictly and exclusively for in-vitro laboratory research and analytical purposes. They are sold only to laboratories, qualified researchers, and research institutions. They are not medicines, not natural health products, not dietary supplements, and not cosmetics, and they hold no Marketing Authorisation or product licence from the MHRA, the FDA or any other regulator.
Our products are not intended for human consumption, human or veterinary administration, diagnostic use, or therapeutic use of any kind, and must not be used for any such purpose. Any use outside in-vitro laboratory research is strictly prohibited and voids all warranties and remedies. We do not provide, and will not respond to requests for, dosing, clinical or usage guidance for humans or animals.
By ordering, the purchaser confirms they are of legal age (21+), acting for a legitimate laboratory or research purpose, and will handle, store, and dispose of all materials in accordance with applicable UK and local regulations. Full conditions are set out in our Terms & Conditions and Research Use FAQ.
