Certificate of Analysis
Purity
≥98.0%
Method
HPLC / MS
Testing
Third-Party
COA Status
Available
B12
A research compound studied in laboratory and formulation research involving cosmetic science, peptide behavior, and compound stability.
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Research Use Only — All products are intended strictly for laboratory research purposes and are not for human consumption. Not intended to diagnose, treat, cure, or prevent any disease.
About B12
Methylcobalamin is the methyl-substituted form of vitamin B12 (cobalamin), in which a methyl group is directly bonded to the cobalt(III) center of the corrin macrocycle. Unlike cyanocobalamin (the most common supplemental form), methylcobalamin carries a methyl group at the upper axial ligand position and is one of the two metabolically active cobalamin coenzyme forms in mammals, alongside adenosylcobalamin. It serves as the obligate cofactor for methionine synthase in the remethylation of homocysteine to methionine in one-carbon metabolism.
Research applications for methylcobalamin include its use as a substrate in methionine synthase enzyme activity assays, one-carbon metabolism pathway investigation, cobalamin coenzyme chemistry studies, and as a reference standard in homocysteine metabolism research. In neurological research models, the compound has been studied for its role in myelin basic protein synthesis regulation and neurotrophin signaling pathway support in cell culture systems. This product is provided for laboratory research use only.
Peptide / Compound Information
| Property | Value |
|---|---|
| Peptide Sequence | Not applicable — cobalt-containing corrinoid coenzyme |
| Molecular Formula | C63H91CoN13O14P |
| Molecular Weight | 1,344.4 g/mol |
| CAS Number | 13422-55-4 |
| PubChem CID | 6436890 |
| Synonyms | Methylcobalamin, MeCbl, Methyl-B12, Mecobalamin, Vitamin B12 (methyl form) |
Source: PubChem — for research reference only.
Lyophilized Research Peptides
This product is supplied in lyophilized (freeze-dried) form — a process that extends shelf life and preserves peptide purity and structural integrity during storage. No fillers, excipients, or preservatives are used in the lyophilization process. The lyophilized powder should be reconstituted with an appropriate research-grade solvent in a controlled laboratory environment prior to use in in vitro or preclinical assay systems.
99%+
PURITY
Third Party Tested
Independently verified by ISO-accredited laboratories. Batch-specific COAs available on request.
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GMP Manufacturing Standards
Synthesized in registered facilities following Good Manufacturing Practices with full chain-of-custody documentation.
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Same-day fulfillment on qualifying orders. Secure cold-chain packaging. Domestic and international research shipping.
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FILLERS
Zero Fillers or Additives
Pure active compounds only. Lyophilized without fillers or preservatives. Composition independently verified.
Scientific Content Review
All technical product descriptions, molecular data, and research context on this page have been prepared with reference to published scientific literature and PubChem compound databases. Content is intended for informational purposes in a research catalog context and does not constitute medical advice or claim therapeutic efficacy.
B12 is a research compound available for controlled laboratory investigation and scientific study. This product is intended strictly for in vitro research, preclinical investigation, and analytical characterization by qualified researchers. Not for human consumption.
Category
Aesthetics / Injectable Support
Purity
≥98.0%
Available Sizes
10ML
COA
Available