Research Handling Note:
Allow sealed vials to reach ambient laboratory temperature before opening, to prevent condensation forming inside the vial. Store sealed vials at -20°C, protected from light and moisture. All handling and laboratory procedures are determined by the receiving laboratory under its own protocols.
- Stock: In Stock
- Model: B7-33 2mg
- SKU: b7-33-2mg
- Research Only: Yes
Certificate of analysis
B7-33 2mg - Research Grade Peptide
B7-33 is studied for its potential role in scientific investigations into relaxin-family receptor (RXFP1) signalling. It is a focus of active research aimed at understanding cellular mechanisms and responses in various tissue types.
- Product Name: B7-33 2mg
- Catalogue Number: B7-33
- Unit Size: 2mg
- CAS:
- Other Names: GTPL 9321, Serelaxin Derivative, (B7-33)H2, RLN2 Derivative, GTPL-9321, H2 & H3 Relaxin Protein Derivative, B7-33 H2, Insulin-Like Peptide 3 & 5 Derivative, GTPL9321
- Form: Lyophilised Solid
Research into B7-33's interaction with RXFP1 receptor signalling contributes to understanding relaxin-family receptor pharmacology across various experimental models.
Storage and Handling:
Supplied in a lyophilised form for stability, B7-33 requires careful handling for reconstitution and storage, as detailed on our website.
Legal and Safety Information:
All UK-Peptides products, including B7-33, are sold exclusively for scientific and research purposes. Enquiries about human consumption are strictly prohibited.
Why Choose UK Peptides for B7-33 2mg in the UK?
UK Peptides has supplied research-grade peptides to the UK scientific community since 2012. We work directly with our manufacturing partner rather than through third-party resellers, so every batch of B7-33 2mg is tested before it reaches your freezer, and consistency carries from one order to the next. Orders placed before 3pm are dispatched the same day, with tracked next-day delivery available across the UK.
Frequently Asked Questions
Is B7-33 2mg intended for human use?
No. It is sold strictly for in-vitro laboratory research and is not a medicine, supplement, or food product.
What form does B7-33 2mg ship in?
As a sealed, lyophilised (freeze-dried) vial, the standard form for stable storage and transport of research peptides.
What purity standard does this batch meet?
See the specification list above for this product's confirmed purity and batch details.
Quality Control at Every Batch:
Every batch of B7-33 2mg that reaches our freezer has already been through our manufacturing partner's own analytical verification before dispatch, checking identity and purity against the specification shown above. Peptides are inherently sensitive to heat, light, and moisture, so batches are kept in temperature-controlled storage from the point they arrive with us until they are picked, packed, and dispatched — the same cold-chain discipline we ask researchers to continue once a vial reaches their own laboratory.
Does this come with a Certificate of Analysis?
Where a Safety Data Sheet or Certificate of Analysis is available for B7-33 2mg, it can be accessed from this product page; see the Safety Data Sheet tab above if present for this item.
Explore More Research Peptides:
B7-33 2mg is one entry in our full peptide catalogue, alongside related compounds such as GHK-Cu 50mg (Copper Peptide). Researchers cross-referencing compound data for their own records may also find the NCBI PubChem database, a free public compound reference maintained by the US National Library of Medicine, a useful independent source alongside the specification listed above.
As with the rest of our peptide catalogue, the specification, pricing, and stock status shown above for B7-33 2mg reflect what we actually hold and can dispatch — not a generic datasheet figure. If you need confirmation of a specific batch detail before ordering, our team can check it for you directly.
Ordering, Payment and Delivery:
B7-33 2mg can be ordered directly through this page using either of our two secure payment methods: cryptocurrency via NOWPayments, or a manual Bank Transfer processed once funds clear. Orders are held pending payment and are dispatched the same working day once confirmed, provided the order is placed before our 3pm cut-off; orders confirmed after that point go out the next working day. Each order can be tracked from your account or via our dedicated order-status lookup tool, without needing to create an account first. If anything about delivery timing, packaging, or payment confirmation is unclear for your specific order, our customer service team is reachable directly through the Contact page and will confirm it before you need to chase it yourself.
| Identification | |
| Molecular Weight (g/mol) | |
| Peptide Sequence | VIKLSGRELVRAQIAISGMSTWSKRSL |
| Physical and Chemical Properties | |
| Molecular Formula | |
| Physical Appearance | white lyophilised solid |
| Form | Sterile filtered white lyophilized (freeze-dried) |
| Solubility | Aqueous soluble |
| Appearance | White to off-white lyophilised powder |
| Melting Point | Not applicable (decomposes before melting) |
| Analytical and Quality Control | |
| HPLC Result | Shows min 99% Purity |
| Mass Spectrum | Consistent with structure |
| Purity % | >99% |
| Research Use and Safety | |
| Caution | Research use only / Not for human or veterinary use |
| Intended Use | For laboratory research use only. Not for human or veterinary use. |
| Hazard Classification | Not classified as hazardous under GHS for research quantities |
| Storage, Handling and Stability | |
| Storage Temperature, Opened | Lyophilized peptides although stable at room temperature for 3 months, should be stored desiccated below -18°C. Upon reconstitution of the peptide it should be stored at 4°C between 2-21 days and for future use below -18°C. |
| Storage Temperature, Unopened | -20 °C recommended for long-term storage |
| Shelf Life | 2 years unopened under recommended conditions |
Safety Data Sheet
Full 16-section UK Safety Data Sheet covering hazard identification, first-aid, handling and storage, exposure controls, physical and chemical properties, toxicology, ecology, transport and regulatory information. Issued by UK Peptides for research use only.