What is the CAS number for B-12?

The CAS number for B-12 is 68-19-9. Its molecular formula is C₆₃H₈₈CoN₁₄O₁₄P (MW 1,355.37 g/mol).

What doses of B-12 are available wholesale?

Wholesale Peptide Supply stocks B-12 in 10mg. Wholesale pricing is provided by quote based on order volume, from a 3-kit (30-vial) minimum per dose.

Is B-12 third-party tested?

Yes. Every lot of B-12 is tested by an independent third-party laboratory, and a per-lot Certificate of Analysis documenting identity and purity is included with every order at no charge, issued in the name of Wholesale Peptide Supply.

Is B-12 for human use?

No. B-12 is sold strictly as a chemical reagent for in-vitro laboratory research and is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility.

How do I get wholesale pricing for B-12?

Request a quote through our contact form or open a wholesale account. An account manager replies with volume pricing and lead times the same day. For anything urgent, text or call (714) 625-9215 to reach a real person in the US.

Can I order B-12 in bulk?

Yes. B-12 is available for bulk and wholesale orders, quoted by dose and volume, from 3 kits of a dose, with lower prices earned per dose at 10 kits and at 100 kits (1,000 vials). Submit the doses and quantities you need for a bulk quote.

Research Use Only. B-12 is sold as a chemical reagent for in-vitro laboratory research, not for human or veterinary use. It is not a drug, supplement, or compounded preparation. It must be handled by qualified professionals. Wholesale Peptide Supply is not a pharmacy or compounding facility under 503A or 503B.

Metabolic & LipotropicCAS 68-19-9

Wholesale B-12 — Bulk Research Supply

Available sizes

10mg$32.34/vial See pricing & order

In-stock orders ship same day when paid by 1 pm PT, Mon–Fri. Overnight available.

Buy B-12 wholesale and in bulk from a US-based research peptide supplier. Every lot is sourced in the USA and third-party tested, with the lab and method on each lot's certificate. Bulk B-12 is quoted by dose and volume from a 3-kit (30-vial) minimum per dose; lower prices are earned per compound at 10 kits and again at 100 kits.

Vitamin B-12 (cyanocobalamin) is a cobalt-containing corrinoid cofactor. It is supplied as a laboratory reagent and is commonly stocked alongside lipotropic research formulations.

Wholesale B-12 10mg lyophilized vial — Wholesale Peptide Supply — B-12 10mg lyophilized vial as supplied. Labeling is customizable for private-label orders.

Wholesale Catalog

Available Doses

Published per-vial wholesale pricing for B-12. Sold in kits of 10 vials with a minimum of 3 kits of each dose; lower prices apply at 10 kits and at 1,000+ vials of a dose. Contact us for larger or custom-volume quotes — answered the same day. Urgent? Text or call (714) 625-9215 — you’ll reach a real person in the United States, not a chatbot or an overseas call center.

B-12 10mg

WPSB10 · CAS 68-19-9 · Metabolic & Lipotropic

3–9 kits: $32.34/vial
10–99 kits: $25.88/vial
100+ kits: $20.70/vial

Sold in kits of 10 vials · minimum 3 kits of this product · each price is earned on the kits of this product alone

Quantity

vials

3 kits

Request a custom quote

Questions? Text a rep or call (714) 625-9215 — a real person in the US answers.

Overview

Vitamin B-12 (cyanocobalamin) is a cobalt-containing corrinoid cofactor. It is supplied as a laboratory reagent and is commonly stocked alongside lipotropic research formulations.

History

Isolated in 1948 and structurally solved by Dorothy Hodgkin in 1956, cyanocobalamin is the reference form of vitamin B-12 and the form to which the CAS registry entry above corresponds.

A cofactor, not a peptide — and it is light-sensitive

Vitamin B-12 (cyanocobalamin) is stocked alongside the lipotropic formulations rather than as a peptide, and it behaves differently from everything around it in this catalogue.

It is a corrinoid: a large ring system built around a central cobalt ion, with a cyano group occupying the upper coordination site. That cobalt centre is what makes it an enzymatic cofactor, and it is also what makes the compound photolabile. Cyanocobalamin degrades under light exposure, which is the single most important handling fact about it — amber vials or foil-wrapped storage are standard practice, not an optional precaution.

In laboratory work it appears in methylation and isomerase cofactor chemistry, and in formulation research alongside lipotropic preparations, which is the context most buyers here are ordering it for.

Supplied as a laboratory reagent and quantified by mass. Material is stored protected from light and refrigerated in solution. These are general handling notes for a chemical reagent, not directions for human or veterinary use.

Key Areas of Research

Cofactor chemistry: methylation and isomerase pathways
Stability and light-sensitivity handling
Formulation research alongside lipotropic blends

References

Hodgkin D.C. et al. (1956). Structure of vitamin B12. Nature, 178:64–66.
Banerjee R. & Ragsdale S.W. (2003). The many faces of vitamin B12. Annu Rev Biochem, 72:209–247.

B-12 — Frequently Asked Questions

What is B-12?: Vitamin B-12 (cyanocobalamin) is a cobalt-containing corrinoid cofactor. It is supplied as a laboratory reagent and is commonly stocked alongside lipotropic research formulations.
What is the CAS number for B-12?: The CAS number for B-12 is 68-19-9. Its molecular formula is C₆₃H₈₈CoN₁₄O₁₄P (MW 1,355.37 g/mol).
What doses of B-12 are available wholesale?: Wholesale Peptide Supply stocks B-12 in 10mg. Wholesale pricing is provided by quote based on order volume, from a 3-kit (30-vial) minimum per dose.
Is B-12 third-party tested?: Yes. Every lot of B-12 is tested by an independent third-party laboratory, and a per-lot Certificate of Analysis documenting identity and purity is included with every order at no charge, issued in the name of Wholesale Peptide Supply.
Is B-12 for human use?: No. B-12 is sold strictly as a chemical reagent for in-vitro laboratory research and is not for human or veterinary use. Wholesale Peptide Supply is not a pharmacy or compounding facility.
How do I get wholesale pricing for B-12?: Request a quote through our contact form or open a wholesale account. An account manager replies with volume pricing and lead times the same day. For anything urgent, text or call (714) 625-9215 to reach a real person in the US.
Can I order B-12 in bulk?: Yes. B-12 is available for bulk and wholesale orders, quoted by dose and volume, from 3 kits of a dose, with lower prices earned per dose at 10 kits and at 100 kits (1,000 vials). Submit the doses and quantities you need for a bulk quote.