Peptides

LL-37 5mg

$75.00

LL-37 is a synthetic cathelicidin-derived peptide (37 amino acids). Available in 5mg lyophilized vials. 99% purity verified by third-party HPLC-MS testing. For research use only. Not for human consumption.

COA VerifiedView Purity Report
99.76%

In stock

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Disclaimer: This product is intended solely for laboratory research purposes. It is not for human consumption, medical use, veterinary use, or household application. All product information on this website is provided for educational purposes only. Researchers must handle this product with appropriate safety protocols and comply with all applicable regulations. Please review our Terms & Conditions before purchasing.

Certificate of Analysis

LL-37 5mg

Verified
99.76% Average Purity (HPLC-MS)

COA Number

2606220​452

Lot

PH-L351021

Reported

06/24/2026

5mg — HPLC-MS Purity Report (Reported June 24, 2026)

LL-37 5mg HPLC-MS Purity Report - Lot PH-L351021 - Reported June 24 2026

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View Certificate of Analysis

Certificate of Analysis

LL-37 5mg

Verified
99.827% Average Purity (HPLC-MS)

COA Number

2605150​500

Lot

PH-L351021

Reported

05/18/2026

5mg — HPLC-MS Purity Analysis (May 2026)

LL-37 5mg HPLC-MS Purity Analysis - May 2026

↗ Click to enlarge

View Certificate of Analysis

LL-37 Peptide Specifications

Property Details
Product Contents LL-37 5mg Lyophilized Powder in 3mL vial.
Available Sizes 5mg
Peptide Type Synthetic cathelicidin-derived peptide (37 amino acids)
Purity 99% (HPLC-MS verified, third-party tested)
Molecular Formula C205H340N60O53
Molecular Weight 4,493.34 g/mol
Sequence LLGDFFRKSK EKIGKEFKRI VQRIKDFLRN LVPRTES
CAS Number 154947-66-7
PubChem CID 16198951
Synonyms LL37, CAP-18, hCAP-18, Cathelicidin LL-37
Appearance White to off-white lyophilized powder
Storage Store at ≤6°C, sealed, away from heat, light, and moisture.
Solubility Soluble in water

LL-37 Chemical Structure

LL-37 chemical structure
Source: PubChem

Legal Disclaimer: LL-37 is sold by Protide Health for laboratory research purposes only. This product is not approved by the FDA for human consumption, medical use, or veterinary use. By completing a purchase, you verify that you are a qualified researcher and must comply with applicable local, state, and federal regulations. Please review our Terms & Conditions before purchasing.

FAQs

We partner exclusively with ISO 9001:2015 certified facilities. Every batch is independently third-party tested by a U.S.-based laboratory before it is approved for release. Each batch is verified for identity (LC-MS), purity (HPLC-UV), net content, and endotoxin (LAL assay, USP <85>). Vials are clearly labeled with the compound and its batch (lot) number, and that number matches the batch-specific Certificate of Analysis published for it. Matching the two confirms the vial you received came from the batch that was tested. Visit our COA library and COA archive to view our public test results.

Yes. Every batch is independently tested by Freedom Diagnostics, a third-party U.S. laboratory, before it is approved for release. Testing covers identity by liquid chromatography and mass spectrometry (LC-MS), purity by high-performance liquid chromatography with UV detection (HPLC-UV), endotoxin by LAL assay (USP <85>), and net content. Certificates of Analysis (COAs) are published for every compound. Search by compound in our COA library, or view the COA archive to find all public test results.

Lyophilized (freeze-dried) vials remain stable for up to 24 months when stored at -20°C. After preparation in solvent, solutions should be refrigerated at 2°C to 8°C, with a recommended analytical window of 30 days for in vitro stability.

Every order ships in a secure, reusable magnetic case, inside insulated protective packaging. The packaging is designed to maintain compound stability and prevent physical or UV damage during transit, ensuring your research materials arrive safely and securely. Compounds are supplied as a lyophilized powder, most in a 3mL clear glass vial, with select products such as NAD+ and glutathione in larger vials.

Visa, American Express, and Discover credit and debit cards. We do not accept Mastercard at this time. All available options are shown at checkout.

Orders paid in full before 12:00 PM PST on a business day are typically dispatched from our USA facility the same or next business day (within 24 hours). Orders placed after that cutoff, or on a weekend or holiday, are dispatched the next business day. Most orders arrive within 2 to 3 business days, shipped via UPS with USPS on select orders.

You will receive email updates at every stage: order prepared, shipped, out for delivery, and delivered. The shipped email includes your tracking number and estimated delivery date. You can also track anytime from the Orders section of your account, or by entering your order ID and billing email on our Track My Order page. Tracking can take up to one business day to update after your package is handed to the carrier.

Shipping is free on all orders over $199. Orders below that are charged a flat $14.99, shown at checkout before you pay. We ship within the United States and Puerto Rico only, and do not ship internationally.

Our USA-based support team is here to help. Whether you need assistance with documentation, handling, or storage requirements, you can reach us anytime at [email protected]

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Based in USA
Lab tested
99% Purity
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LL-37 5mg PeptideLL-37 5mg
$75.00

In stock