LL-37 — 5mg

Price$79.99

• Description

  LL-37 is a 37-amino-acid peptide and the only member of the cathelicidin family found in humans. It is cleaved from the C-terminal end of the hCAP18 precursor protein and takes its name from its first two residues (two leucines) and its length. It forms an amphipathic α-helix and is widely used in host-defence peptide research.

  Durham Peptides stocks LL-37 domestically, so it ships from within Canada with no customs delays.

• Specifications

  QUICK SPECS

  • Form: Lyophilized peptide powder

  • Net per vial: 5 mg

  • Purity: ≥99% (HPLC verified)

  • Storage: sealed vials at −20°C, protected from light and moisture; 2–8°C once reconstituted

  • Reconstitution: Use bacteriostatic water (sold separately)

  IDENTITY BASICS

  • Sequence: LLGDFFRKSKEKIGKEFKRIVQRIKDFLRNLVPRTES (37 amino acids)

  • Molecular formula: C₂₀₅H₃₄₀N₆₀O₅₃

  • Molecular weight: approx. 4493.3 g/mol

  • CAS: 154947-66-7

  • Also written as: human cathelicidin LL-37

  • Class: cathelicidin host-defence peptide

• Why Durham Peptides

  WHY CHOOSE DURHAM PEPTIDES FOR LL-37?

  • Independently lab-tested, with certificates published at durhampeptides.ca/lab-results

  • Same-day shipping across Canada (orders paid before 3:00 PM ET)

  • Free shipping on orders over $200 CAD

  • Payment by Interac e-Transfer

  • Transparent Canadian pricing, shown above in CAD

• Frequently Asked Questions

  WHAT IS LL-37?

  A 37-amino-acid peptide cleaved from the human cathelicidin precursor hCAP18. Its name comes from its two leading leucine residues and its 37-residue length.

  HOW SHOULD LL-37 BE STORED AND RECONSTITUTED?

  Keep sealed, lyophilized vials frozen (−20°C), protected from light and moisture. Reconstitute with bacteriostatic water (sold separately). Once reconstituted, keep the vial refrigerated at 2–8°C, away from light.

  HOW IS IT SHIPPED IN CANADA?

  Orders placed and paid before 3:00 PM ET ship the same business day via Canada Post Xpresspost with tracking. Shipping is domestic from within Canada, so there are no customs delays or border holds.

  IS THERE A COA?

  Yes. Every vial carries a lot number, and certificates are published at durhampeptides.ca/lab-results as independent third-party testing of each batch completes.

• Disclaimer

  • For laboratory research use only.

  • Not for human or veterinary use.

  • Not intended for diagnosis, treatment, cure, or prevention of any disease.

  • Use only in controlled laboratory settings by qualified personnel following appropriate safety procedures.

• Volume Pricing

  Volume discounts apply to your whole order, not to a single item. Enter the code at checkout.

  • Spend $200 or more — 10% off with code VOLUME10

  • Spend $500 or more — 15% off with code VOLUME15

  • Spend $1,000 or more — 20% off with code VOLUME20

  • Spend $2,000 or more — 25% off with code VOLUME25

  The thresholds are worth more than they look. A $499 order costs you $449. Add one more $20 vial to reach $500 and you pay $425 — more product, $24 less. Free shipping over $200.