All products are for research use only. Not for human consumption, veterinary use, or food/drug applications. Must be 18+ to purchase.

Peptides.net
B7-33
HPLC Verified

B7-33

Synthetic 26 amino acid single-chain relaxin-2 analogue and biased RXFP1 agonist. ≥98% purity, HPLC verified.

~2,850 g/mol≥98% (HPLC)N/A (novel synthetic analogue)

Ships Next Day

Order before midnight. Dispatched tomorrow with cold-chain packaging

HPLC Verified

≥98% purity

Lyophilised

Powder format

Free Shipping

Cold-chain included

COA Included

Every batch

B7-33 is a synthetic 26 amino acid single-chain peptide derived from the B-chain of human relaxin-2, engineered to act as a selective biased agonist at the relaxin family peptide receptor 1 (RXFP1). Unlike native relaxin-2, B7-33 activates RXFP1-mediated cAMP-independent signalling pathways — specifically pERK1/2 and pAKT — while minimising cAMP accumulation, making it a valuable pharmacological tool for dissecting RXFP1 signalling bias in vitro. It is used as a research compound in cardiovascular and fibrosis biology research.

B7-33 is manufactured in a cGMP compliant, ISO9001 certified laboratory to a guaranteed purity of ≥98%. Every batch is independently tested using HPLC and MS-UPLC analysis before dispatch.

Vials are vacuum sealed and stored in a temperature-controlled, monitored cold storage system to preserve purity throughout the supply chain. Certificates of Analysis are available on request.

Sold strictly for in vitro research purposes only. Not for human consumption.

What Researchers Say

Sign in to leave a review

No reviews yet. Be the first to share your research experience.

Frequently Asked Questions

Related Compounds

≥98% Purity

IGF-1 LR3

Synthetic 83 amino acid IGF-1 analogue with reduced IGFBP binding affinity for use in cell biology and growth factor signalling research.

from £58.00
View
≥98% Purity

DSIP (Delta Sleep-Inducing Peptide)

Naturally occurring nonapeptide studied for roles in sleep-wake cycle regulation and neuroendocrine signalling.

from £9.99
View
≥98% Purity

GHRP-2

Synthetic hexapeptide GHS-R1a agonist used as a reference compound in ghrelin receptor pharmacology and GH axis research.

from £8.95
View

Select Size

Quantity

£22.95
Currently out of stock
Add Bacteriostatic Water
Needed for reconstitution
Independent HPLC purity verification on every batch
Dispatched next business day with cold-chain delivery
Temperature-controlled packaging from lab to door
Batch-specific Certificate of Analysis with every order

Quality Guaranteed

Every batch is HPLC-tested to ≥99% purity. Certificate of Analysis and MSDS available with every order.

Your Cart

Your cart is empty

Add some research compounds to get started.

Browse Products