Frag 17-23

Synonyms: Frag 17-23, F17-23, Fragment 17-23, hCAP18 (134-156), LL-37 Fragment 17-23, Cathelicidin Fragment 17-23

Frag 17-23 is a synthetic peptide fragment corresponding to residues 17–23 of the human cathelicidin LL-37. It is produced by solid-phase peptide synthesis and supplied as a white to off-white lyophilized powder, typically with ≥98% purity by HPLC.

Buyers sourcing Frag 17-23 are usually formulators working on antimicrobial or immunomodulatory research models. The fragment retains the core amphipathic α-helical region of LL-37, which is the structural basis for its interaction with bacterial membranes. Unlike the full-length peptide, Frag 17-23 offers a shorter sequence that is easier to handle and more cost-effective for screening purposes.

Grade & Supply Forms

We supply Frag 17-23 as a research-grade peptide, with purity verified by HPLC and mass spectrometry. The standard batch size is 10–50 g, and we can accommodate larger quantities upon request. Each lot is supplied with a certificate of analysis.

Applications & Formulation Use

Frag 17-23 is used in antimicrobial susceptibility testing, membrane permeability assays, and as a reference standard for LL-37-related research. It is also incorporated into in vitro models for studying host-defense peptide mechanisms. Formulators typically dissolve the powder in sterile water or phosphate buffer to prepare stock solutions.

Bulk Packaging & Ordering

• Packaging: 1 g, 5 g, 10 g, 50 g, 100 g in amber glass vials or foil bags
• MOQ: 1 g
• Lead time: 3-5 business days (stock items)
• Documentation: COA, MSDS, TDS

Contact & Ordering Information

• Company: LyvBio Co., Ltd.
• Address: Room 5-0203, Courtyard 205, Lianhu District, Xi’an, Shaanxi, China
• Email: info@lyvbio.com
• Phone/WA: +86-182-9185-7498

send us your specification for a quotation.