B12

Overview

Vitamin B12 (cobalamin) refers to a family of water-soluble cobalt-containing compounds built around a corrin ring that chelates a central cobalt ion. The four core forms are cyanocobalamin, methylcobalamin, hydroxocobalamin, and adenosylcobalamin (cobamamide). Vialdyne supplies Vitamin B12 (Cyanocobalamin) as dark red crystalline powder with a batch-specific Certificate of Analysis covering identity, assay, and appearance. The applicable batch COA identifies the specification used and records the actual results.

Applications & buyer fit

Buyers for longevity-class peptides span research labs working on telomere, collagen, and circadian-rhythm models, plus cosmetic-formulation OEMs incorporating peptides like GHK-Cu into anti-aging finished products. Copper peptides in particular require attention to chelator-free water and EDTA-free buffers in downstream formulation work, incompatibility there is the most common cause of "the peptide didn't work" support tickets in this class.

Primary buyer fit: academic and contract research laboratories.

Specifications

CAS

68-19-9

Molecular Formula

C63H88CoN14O14P

Molecular Weight

1355.37 Da

Appearance

Dark red crystalline powder

Purity (HPLC)

≥ 99.0%

Strength

1 mg/ml – 10 ml

Packaging

10 vials/box · base pack (multiples of 10)

Half-life

≈ 1.5-2.1 hours

MOQ

On request

Lead time

10–18 days

Storage

2–8°C, protect from light

Regulatory note

Research-use-only reference material; not for human or veterinary use.

Selected literature

1. Green R, Allen LH, Bjørke-Monsen AL, et al. Vitamin B12 deficiency. Nat Rev Dis Primers. 2017;3:17040.
2. Stabler SP. Vitamin B12 deficiency. N Engl J Med. 2013;368(2):149-160.
3. Wang H, Li L, Qin LL, Song Y, Vidal-Alaball J, Liu TH. Oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency. Cochrane Database Syst Rev. 2018;(3):CD004655.
4. Markun S, Gravestock I, Jäger L, Rosemann T, Pichierri G, Burgstaller JM. Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression. Nutrients. 2021;13(3):923.
5. Huynh DT, Nguyen NT, Do MD, Bauer JA. Vitamin B12 deficiency in diabetic patients treated with metformin: A cross-sectional study. PLoS One. 2024;19(4):e0302500.

Frequently asked questions