B7-33 Peptide Vial

B7-33 Peptide Vial is a high-purity, lyophilised bioactive research peptide supplied at ≥98% purity by Direct Anti Peptide. Developed for advanced laboratory investigation, this peptide is recognised for its anti-fibrotic and anti-inflammatory research profile, making it a valuable tool for scientists studying tissue remodelling, pulmonary biology, cardiovascular function, and renal physiology. For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications.

Product Overview

B7-33 is a single-chain peptide analogue derived from the H2 relaxin family and is specifically studied for its capacity to engage the RXFP1 receptor pathway without triggering the full relaxin signalling cascade. At Direct Anti Peptide, this compound is supplied as a precision-manufactured lyophilised powder, offering researchers a stable, reproducible, and analytically verified reagent suitable for a broad range of in vitro and ex vivo research protocols. Its emerging role in fibrosis-related research pathways has positioned B7-33 as one of the most actively investigated peptides in contemporary biomedical science.

Peptide Structure & Amino Acid Sequence

B7-33 is a truncated, single-chain peptide derived from the B-chain of human H2 relaxin. Unlike the native two-chain relaxin structure, B7-33 retains the critical receptor-binding domain while eliminating the A-chain entirely. This structural simplification preserves functional interaction with RXFP1 receptors and facilitates selective downstream signalling relevant to anti-fibrotic and vasodilatory research models. The peptide’s compact architecture also contributes to improved synthetic yield, analytical tractability, and batch-to-batch consistency — all critical factors for rigorous laboratory research.

Chemical & Physical Characteristics

• Form: Lyophilised (freeze-dried) white to off-white powder
• Solubility: Soluble in aqueous buffers under standard laboratory conditions
• Molecular Target: RXFP1 receptor (research context)
• Stability: Enhanced through lyophilisation; resistant to degradation under recommended storage
• Packaging: Sealed pharmaceutical-grade glass vial, protected from light, air, and moisture

Purity & Analytical Verification (HPLC & MS)

Every batch of B7-33 Peptide Vial supplied by Direct Anti Peptide undergoes rigorous analytical testing to confirm a minimum purity of ≥98%. High-Performance Liquid Chromatography (HPLC) is used to quantify purity levels and detect any residual synthesis by-products, while Mass Spectrometry (MS) confirms the correct molecular weight and structural identity of the final compound. These dual-verification methods ensure that researchers receive a compound that meets the exacting standards required for reproducible, publication-quality experimental results.

Quality Control & Lyophilisation Integrity

The lyophilisation process employed during manufacture removes all residual moisture from the peptide matrix, dramatically extending shelf life and preserving full bioactivity. This freeze-drying methodology prevents peptide degradation that can occur in solution over time, ensuring that the compound retains its structural integrity from the point of manufacture through to reconstitution in the research setting. Each vial is sealed under inert conditions to prevent oxidation, and the chemically inert borosilicate glass construction eliminates the risk of leaching or contamination.

Safety, Handling & Laboratory Precautions

B7-33 Peptide Vial is intended exclusively for use by trained research professionals operating within appropriately equipped laboratory environments. Standard laboratory personal protective equipment (PPE) — including gloves, eye protection, and lab coats — should be worn at all times when handling this compound. This peptide is not approved for human or veterinary administration and must not be used in any clinical, therapeutic, diagnostic, or consumptive context. Researchers should consult applicable institutional biosafety guidelines and local regulatory frameworks prior to commencing any experimental work.

Reconstitution, Packaging & Storage

Upon receipt, B7-33 Peptide Vial should be stored at -20°C in a dry, dark environment to maintain optimal stability. Reconstitution should be performed using sterile, research-grade aqueous solvents appropriate to the specific experimental protocol. Once reconstituted, the solution should be aliquoted, stored at -80°C, and used within a timeframe consistent with validated stability data. Repeated freeze-thaw cycles should be avoided to preserve peptide integrity. All packaging materials, including the glass vial and any associated documentation, should be retained for reference and traceability purposes.

Intended Research Use & Market Positioning

B7-33 is one of the most actively studied anti-fibrotic peptides in current preclinical research. Its primary areas of scientific interest include pulmonary fibrosis, cardiac fibrosis, renal fibrosis, and related inflammatory tissue remodelling pathways. Researchers investigating extracellular matrix regulation, TGF-β signalling inhibition, and RXFP1-mediated vasodilation will find B7-33 a particularly relevant tool compound. Direct Anti Peptide supplies this peptide to qualified research institutions, universities, and independent laboratories seeking to buy online with confidence in quality and compliance.

Ordering, Availability & Fulfillment

Direct Anti Peptide offers B7-33 Peptide Vial for sale with fast, reliable fulfillment and competitive best-price positioning. Orders are processed promptly and shipped with appropriate cold-chain packaging to preserve peptide integrity during transit. Our customer support team is available to assist with product queries, bulk order enquiries, and documentation requests. Order now to secure your supply and support your next research milestone.

Legal & Regulatory Disclaimer

For research use only. Not for human or veterinary use. Not for clinical, diagnostic, or consumptive applications. B7-33 Peptide Vial is sold exclusively as a laboratory research reagent. Direct Anti Peptide makes no claims regarding the therapeutic, prophylactic, or diagnostic utility of this compound. All purchasers are solely responsible for ensuring compliance with applicable national, regional, and institutional regulations governing the procurement, storage, handling, and use of research peptides. This product must not be administered to humans or animals under any circumstances.