LOT YPB.244✓ COA VERIFIED
Compound information
Molecular profile
What is LL37?
Reference data for this compound is being added. Every lot still ships with its third-party Certificate of Analysis.
Storage requirements
Stability information
Protect from lightRoom-temp stable (short-term)
Lyophilized (powder)−20°C · stable long-term
Reconstituted2–8°C · use within 30 days
Lab verification
Verified by a third-party lab
This lotYPB.244
TestedDec 2025 · USA
Result6 of 6 tests passed
Research overview
LL37 in the literature
Contents Cathelicidin LL-37 Form / storage Lyophilized powder; store at −20 °C, protect from light Purity ≥98% — see lot COA CAS 154947-66-7 Molecular formula C205H340N60O53 Molecular weight ~4493 g/mol Testing Identity (UV/Vis λmax), purity, assay (Beer-Lambert), heavy metals, microbial (TAMC/TYMC) COA Batch-specific — view on this page Research background LL-37 is a 37-residue cationic peptide released from the C-terminus of the human cathelicidin precursor hCAP18 — the only cathelicidin-family antimicrobial peptide in humans and a long-standing subject of innate-immunity research. Its amphipathic helical structure underlies its studied interaction with microbial membranes. Beyond direct antimicrobial investigation, it is studied for immunomodulatory roles including chemotaxis, wound-associated signaling, and host-defense pathways. Research applications Antimicrobial membrane-interaction studies in vitro Immunomodulatory / chemotactic signaling in innate immunity Reference peptide in wound-microenvironment / host-defense research Quality & documentation Every lot is tested by an independent third-party laboratory before it enters the catalog.
HighlightsBeyond direct antimicrobial investigation, it is studied for immunomodulatory roles including chemotaxis, wound-associated signaling, and host-defense pathways.Research applications Antimicrobial membrane-interaction studies in vitro Immunomodulatory / chemotactic signaling in innate immunity Reference peptide in wound-microenvironment / host-defense research Quality & documentation Every lot is tested by an independent third-party laboratory before it enters the catalog.Testing covers identity (characteristic UV/Vis λmax matched to a reference standard), percent purity (≥98%, correlation-coefficient method), quantitative assay (Beer-Lambert, ≥95% of label claim), heavy metals (total ≤150 ppb — Pb, Cd, Hg, Ni, Fe, Co), and microbial limits (TAMC/TYMC).Each order ships with the Certificate of Analysis matching its lot number.
COA breakdown
✓ 6 of 6 tests passedPASSIdentityλ-max matchesLambda-max vs reference standardPASSPurity≥98% · UV/VisUV/Vis correlationPASSQuantitative assay≥95% of labelBeer-Lambert · ≥95% label claimPASSHeavy metals<20 ppbNMT 150 ppb/vial specPASSTAMC · aerobic microbial0 CFUNMT 1,000 CFU · 48 h @ 37 °CPASSTYMC · yeast & mold0 CFUNMT 100 CFU · 48 h @ 30 °C
Purity is measured per lot; panel results per the Analytical Formulations summary report for the lot currently shipping.
Product details
- Type
- Research peptide
- Form
- Lyophilized powder
- Storage
- Room temp in transit · −20 °C long-term
