Question 1

What exactly is B12?

Accepted Answer

B12 is supplied as a defined chemical entity: molecular formula C63H88CoN14O14P, average molecular weight 1355.4 g/mol, CAS registry number 68-19-9. 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.

Question 2

How is the purity of B12 verified?

Accepted Answer

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.

Question 3

Is B12 available from a pharmacy, and what is the pharmacy price?

Accepted Answer

Not this material, no. The molecule in B12 is authorised as a medicine under another name — Cyanocobalamin injection (EU, US) — but that authorisation covers a licensed medicinal product made, tested and released to pharmaceutical standards, prescribed for a specific indication. What is supplied here is laboratory reference material for in-vitro research: the same molecule, a different regulatory object. No pharmacy dispenses it, it has no pharmacy price, and no prescription is issued or implied.

Question 4

Do you ship B12 within Europe?

Accepted Answer

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.

B12

Compound identity

Batch specifications

Frequently asked questions

How to use B12

What it is

Reconstitution

Storage & handling

B12