LL-37

S$489.00

LL-37 is the 37-residue human cathelicidin peptide, studied for antimicrobial membrane activity, biofilm research and innate-immune signalling.

Formula
C205H340N60O53
MW
4493
CAS
154947-66-7

Ships in 1–2 business days · free shipping

Questions?

Purity is >99% (manufacturer's HPLC specification). Batch documentation is available on request — message @north_vial before you order.

For laboratory research use only. Not for human or animal consumption. Not approved by the HSA for therapeutic use.

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Description

LL-37 is the only cathelicidin-family antimicrobial peptide identified in humans. It is released by proteolytic cleavage of the precursor protein hCAP18 and takes its name from its two N-terminal leucine residues and its 37-amino-acid length. In membrane-mimetic environments it adopts an amphipathic α-helical structure.

Research on LL-37 spans several fields. Microbiology groups use it to study membrane disruption in Gram-positive and Gram-negative bacteria and to probe biofilm formation. Immunology studies have investigated its chemotactic activity through the formyl peptide receptor FPRL1, its interaction with nucleic acids and its effects on cytokine release. Epithelial models have also examined its role in keratinocyte migration and re-epithelialisation.

LL-37 is prone to aggregation; store the lyophilised peptide sealed and frozen.

Supplied for research purposes only and must not be used as a drug, food additive or cosmetic. Not for human or veterinary use.

Supplied as a 10-vial kit of lyophilised powder. Dispatched in 1–2 business days.

CAS number154947-66-7
Molecular formulaC205H340N60O53
Molecular weight4493 g/mol
Purity>99% (manufacturer's HPLC specification). Batch documentation on request.
FormLyophilised powder
Pack10 vials per kit
StorageStore at 2–8 °C, protected from direct sunlight and moisture. For long-term storage, −20 °C.
Intended useLaboratory research only. Not for human or animal consumption.

Product FAQ

What is LL-37?

LL-37 is the 37-residue human cathelicidin peptide, studied for antimicrobial membrane activity, biofilm research and innate-immune signalling.

What does a LL-37 kit contain and what does it cost?

LL-37 is sold as a kit of 10 vials of lyophilised (freeze-dried) powder, in 5 mg per vial. The price is S$489 per 10-vial kit, with free shipping.

What are the CAS number and molecular formula of LL-37?

LL-37 has CAS number 154947-66-7, molecular formula C205H340N60O53, molecular weight 4493 g/mol.

How should LL-37 be stored?

Store the sealed vials at 2–8 °C, protected from direct sunlight and moisture; for long-term storage, −20 °C is standard practice. Once reconstituted, keep refrigerated and use within the period appropriate to the compound.

What purity is LL-37?

Purity is >99% (manufacturer's HPLC specification). Batch documentation is available on request — message @north_vial before you order.

Is LL-37 for human or animal use?

No. LL-37 is supplied strictly as a laboratory reference material for in-vitro research use only — not for human or animal consumption, and not approved for therapeutic use.

How fast does LL-37 ship and how do I pay?

Shipping is free. Orders are dispatched in 1–2 business days and usually delivered in 6–9 business days. Payment is by cryptocurrency: Bitcoin (BTC), or USDT/USDC/ETH on the Ethereum (ERC-20) network.