- What exactly is LL-37?
- LL-37 is supplied as a defined chemical entity: molecular formula C205H340N60O53, average molecular weight 4493.3 g/mol, CAS registry number 154947-66-7. Those three values are what identify the material unambiguously — a supplier that cannot state them is not describing a characterised compound. Each batch is accompanied by a certificate of analysis carrying the same identifiers.
- How is the purity of LL-37 verified?
- Purity is determined by high-performance liquid chromatography, with identity confirmed by mass spectrometry. The stated figure for this item is 99.0%. Verification is per batch rather than per product line, which is why the lot number on the vial and the lot number on the certificate of analysis have to match — a certificate that is not batch-specific documents nothing about the vial in front of you.
- Is LL-37 available from a pharmacy, and what is the pharmacy price?
- It is not, and there is none. LL-37 is not an authorised medicinal product in the EU, the UK or the US, so no pharmacy dispenses it and no pharmacy price exists for it. It is supplied here strictly as a laboratory reference material for in-vitro research, not for human or veterinary use, and no prescription is issued or implied.
- Do you ship LL-37 within Europe?
- Yes. Orders are dispatched from within Europe with tracked delivery and plain, unbranded outer packaging, which is what keeps transit times short for EU destinations. Material is labelled for laboratory research use. Delivery windows and destinations are listed on the shipping page.
