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Onex Peptides, Canadian research peptide supplier
LL-37 5mg specification card: catalogue reference, CAS number, molecular formula and purity

Peptides

LL-37 5mg — Research Peptide Canada

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LL-37 is the only human cathelicidin-derived antimicrobial peptide, a 37-residue amphipathic helix released by proteolysis of hCAP18. It is studied for direct membrane-disrupting antimicrobial activity and for immunomodulatory and wound-repair signalling.

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  • Same-day dispatch before 2 PM PT from British Columbia, Canada
  • Free shipping over CA$200
  • Batch-specific COA with every lot
  • Priced in Canadian dollars

LL-37 5mg specification

Release specification

Catalogue number
OP-047
Purity specification
>99%
Fill
5mg

Identity and structure

CAS number
154947-66-7
Molecular formula
C₂₀₅H₃₄₀N₆₀O₅₃
Molecular weight
4,493.3 g/mol

Additional specifications

Form
Lyophilized powder
Solubility
Soluble in bacteriostatic water
Shelf Life
24 months from date of manufacture

About LL-37 5mg

LL-37 works through charge and shape rather than through a receptor: its cationic amphipathic helix inserts into anionic bacterial membranes and disrupts them, a mechanism that makes resistance development slow compared with conventional antibiotics. Alongside that direct activity it acts as a signalling molecule, driving chemotaxis, angiogenesis and re-epithelialisation, and it is this dual role that makes it interesting in wound-healing models. It is also implicated in the pathology of psoriasis and rosacea, so the literature cuts both ways. This 5mg vial is sized for the low working concentrations typical of antimicrobial assays.

Storing and handling LL-37 5mg

Store lyophilized peptide at -20°C in a dry, dark environment. Reconstitute in bacteriostatic water. Once reconstituted, store at 2-8°C and use within 30 days. Avoid repeated freeze-thaw cycles. Lyophilized powder is stable at room temperature for shipping and short-term storage.

Shipping LL-37 5mg within Canada

Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day. Parcels leave British Columbia, Canada and travel entirely within the country, arriving in two to five business days with a tracking number on every one. Orders over CA$200 ship free; see the shipping page for the dispatch cut-off and transit window.

LL-37 5mg questions

Are research peptides like LL-37 5mg legal in Canada?

LL-37 5mg is supplied here strictly as a reference material for in vitro laboratory research. For laboratory research use only. Not for human or veterinary use. Canadian law turns on what a substance is represented and supplied for, which is why that restriction is on the label, the invoice and every page of this site. The full framework, and what a research-use designation does and does not change, is set out on our legality page.

Is LL-37 5mg shipped from within Canada?

Yes. Every LL-37 5mg order leaves British Columbia, Canada and travels entirely within the country. Orders placed before 2:00 PM Pacific on a business day are packed and dispatched the same day. Orders placed after that cut-off, or on a weekend or statutory holiday, are dispatched on the next business day. Transit after dispatch is 2–5 business days Canada-wide, with a tracking number on every parcel, and orders over CA$200 ship free.

Does LL-37 5mg come with a certificate of analysis?

Yes — the certificate for the lot in your box, not a representative certificate for a different batch. Every LL-37 5mg lot is released against a >99% HPLC specification, and the document carries the lot number, the issuing laboratory and the analytical method. Certificates are not published on this site; if you need another copy, ask us for it by lot number.

How is LL-37 5mg supplied and stored?

As a lyophilised powder in a sealed vial, which is the form that survives shipping without a cold chain. Unopened vials are stored away from light and moisture; the storage and handling page covers the laboratory conditions in full. We publish no dosing, reconstitution volumes or administration guidance of any kind.

What fill is LL-37 5mg supplied in?

LL-37 5mg is supplied in a single 5mg fill, released against a >99% specification.

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