B7-33 Brochure

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HPLC Purity Analysis

High-Performance Liquid Chromatography

99.1%purity

Method: RP-HPLC C18|UV 220nm|ACN/H₂O + 0.1% TFA

Skin / Cosmetic

B7-33

Name: B7-33
Brand: MiPeptidos
Availability: InStock

CAS: 1818415-56-3

Anti-fibrotic therapy (cardiac, pulmonary, hepatic) · Wound repair biology and scar reduction · RXFP1 biased agonism

B7-33 is a single-chain peptide agonist of relaxin family peptide receptor 1 (RXFP1) derived from the B-chain of human relaxin-2.

Anti-fibrotic therapy (cardiac, pulmonary, hepatic)
Wound repair biology and scar reduction
RXFP1 biased agonism
Skin rejuvenation and collagen remodeling

Research Use Only.

This product is intended for laboratory research purposes only. Not for human consumption. Handle with appropriate safety precautions.

Frequently Bought Together

Bacteriostatic Water

Required for reconstitution

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Snap-8

Skin / Cosmetic

$40.00

Starting at

$45.00/vial

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Earn 450 pts —

✓ ≥99% HPLC|✓ COA Included|✓ Ships Today

≥99% Purity

COA Included

Third-Party Tested

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B7-33 Brochure

Free download — PDF format

ProtocolsHPLC DataDosingEN + ES

No spam. Unsubscribe anytime.

HPLC Purity Analysis

High-Performance Liquid Chromatography

99.1%purity

Method: RP-HPLC C18|UV 220nm|ACN/H₂O + 0.1% TFA

CoA Included

|HPLC Verified

|GMP Compliant

|Third-Party Tested

|Same-Day Shipping

|Batch Tracked

Specifications

Purity

≥99%

Form

Lyophilized Powder

CAS

1818415-56-3

Mol. Weight

2987.75 Da

How B7-33 Works

B7-33 is a single-chain peptide agonist of relaxin family peptide receptor 1 (RXFP1) derived from the B-chain of human relaxin-2. Unlike native relaxin (which requires a two-chain A-B structure), B7-33 consists solely of the B-chain with modifications that enable RXFP1 binding and activation. It selectively activates anti-fibrotic signaling pathways (pERK1/2) through RXFP1 without activating the cAMP pathway, making it a biased agonist. This promotes collagen remodeling, reduces fibrosis, and enhances wound repair biology.

Research Applications

Anti-fibrotic therapy (cardiac, pulmonary, hepatic)

Wound repair biology and scar reduction

RXFP1 biased agonism

Skin rejuvenation and collagen remodeling

Cardiovascular remodeling after myocardial infarction

View Published Research on PubMed →

Pricing

Size	Per Vial	10-Pack
2mg	$45.00	$450.00
10mgBest Value	$160.00	$1600.00

10-pack pricing shown. Volume discounts for 50+ vials — contact us.

Certificate of Analysis

MiPeptidos

B7-33

PASSES ALL SPECIFICATIONS

Batch NumberHR-B733-2600315

Date of AnalysisFebruary 9, 2026

Purity (HPLC)99.1%

AppearanceWhite to off-white lyophilized powder

SolubilityFreely soluble in sterile water and bacteriostatic water

Molecular Weight (MS)2987.75 Da — Confirmed

Endotoxin (LAL)<0.1 EU/mg

Sterility (USP <71>)Passes USP <71>

Download Full COA (PDF)

This COA is a representative sample. A batch-specific Certificate of Analysis with full HPLC chromatograms and mass spectrometry data is included with every order.

Research Use Only. This product is intended for laboratory research purposes only. Not for human consumption. Handle with appropriate safety precautions.