LL-37
LL-37 is supplied by White Label Peptides as a lyophilised powder in multi-dose vials, for laboratory and research use, to business buyers only. It sits in our recovery and repair category. Every batch is verified by HPLC and ships with its own Certificate of Analysis.
What varies by batch
The page identifies the compound. The certificate records the batch.
Purity, method, analysis date and issuing party belong on the batch record rather than in page copy.
Specification
Compound data
The specification below is the batch-independent data. Purity and analysis date vary by batch, so they appear on the certificate issued with your order rather than on this page.
| Compound | LL-37 |
|---|---|
| Classification | Cathelicidin-derived antimicrobial peptide |
| Peptide type | Synthetic 37-amino-acid peptide |
| CAS number | 597562-32-8 |
| Molecular formula | C205H340N60O53 |
| Molecular weight | Approximately 4493.37 g/mol |
| Structure | 37-amino-acid amphipathic peptide corresponding to the 134-170 segment of human cationic antimicrobial protein 18 (hCAP18) |
| Purity | ≥98% (HPLC-verified, batch-by-batch) |
| Form | Lyophilised peptide powder, multi-dose research vials |
| Appearance | White to off-white lyophilised powder prior to reconstitution |
| Presentation | LL-37 5mg |
| Reconstitution | Reconstitute using bacteriostatic water or sterile laboratory-grade water |
| Storage | Store refrigerated at 2-8°C in a cool, dry environment away from direct light. For long-term storage prior to reconstitution, freezing conditions are recommended. Storage conditions are confirmed on the Certificate of Analysis supplied with each order. |
Specification data is provided for identification and procurement. It is not dosing guidance and it is not a claim of any effect.
What this compound is
LL-37 in supply terms
LL-37 is registered under CAS 597562-32-8, a synthetic 37-amino-acid peptide with molecular formula C205H340N60O53 and a molecular weight of approximately 4493.37 g/mol. Its sequence corresponds to residues 134 through 170 of human cationic antimicrobial protein 18 (hCAP18), and its structure is amphipathic, meaning the chain carries distinct hydrophilic and hydrophobic faces. This structural feature underlies its catalogue classification as a cathelicidin-derived peptide, a family designation based on the parent protein rather than a statement about the compound. Purity is verified at 98 percent or higher by HPLC on a batch-by-batch basis. LL-37 is supplied as a lyophilised powder in multi-dose research vials, white to off-white in appearance prior to reconstitution, standard fill 5mg. Reconstitution is typically carried out using bacteriostatic water or sterile laboratory-grade water, in line with the rest of the fragment and full-chain peptides in this range. Storage requires refrigeration at 2-8C, protected from direct light, with freezing recommended for extended storage prior to reconstitution. Certificate of Analysis documentation accompanies each order and specifies the verified storage window and purity result for that batch. At 37 residues, LL-37 is among the longer single-chain peptides in the catalogue, a relevant reference point when comparing synthesis complexity and unit pricing against shorter fragment peptides.
This section describes the compound as a material. It makes no claim about any effect and is not guidance on use.
| Send the volume you need for LL-37 and your delivery country. We will quote against it. | Request pricing |
Same category
Also in Recovery and Repair
| Compound | Identifier | Presentation |
|---|---|---|
| BPC-157 | C62H98N16O22 | BPC-157 10mg |
| BPC-157 + TB-500 (Wolverine Stack) | On request | BPC-157 10mg + TB-500 10mg |
| KPV | 67727-97-3 | KPV 10mg |
| TB-500 | C212H350N56O78S | TB-500 10mg |
Questions
Supply, answered
Is LL-37 available for private label?
Yes. It can be supplied under your own brand on the vial and the carton, with the Certificate of Analysis issued under your product name.
What is the minimum order quantity?
Set for this compound specifically and confirmed at the enquiry stage, before you commit.
What purity is supplied?
98 percent or higher, verified by HPLC. The certificate issued with your batch carries the actual figure for that batch.
How is it shipped?
As lyophilised powder in multi-dose vials, packed for transit. Schengen delivery in 2 to 5 days once the batch is released.
We already buy LL-37. Can you quote against our current volume?
Yes. Send the volume and the delivery country. Pricing is tiered per compound, so the quote reflects what you buy rather than a list price.
Can you supply LL-37 as a second source?
Yes. Terms are agreed per compound, so you can add LL-37 without moving anything else you buy elsewhere.
Request pricing for LL-37
Indicative volume and delivery country is enough to start. We reply within one working day.