Vitamin B12 (Methylcobalamin) 1mg/mL Injectable | 20-Vial Kit
0-Region Domestic Shipping
Vitamin B12 (Methylcobalamin) 1mg/mL — injectable bioactive B12, 20-vial kit. ≥99% HPLC purity, MS confirmed, Janoshik COA. Research use only.
* The information on this page is a summary and is not intended to cover all available information about this medication. It does not cover all possible uses, directions, precautions, drug interactions or adverse effects and is not a substitute for the expertise and judgement of your healthcare professional.
{“@context”: “https://schema.org”, “@type”: “FAQPage”, “mainEntity”: [{“@type”:”Question”,”name”:”How is this QSC injectable supplied?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”QSC injectable solutions are supplied ready-to-use — no reconstitution required. Each vial contains the stated concentration in pharmaceutical-grade carrier (oil or aqueous). Draw using a sterile syringe appropriate for the solution viscosity.”}},{“@type”:”Question”,”name”:”How should this QSC injectable be stored?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”Oil-based solutions: store at room temperature (15–25°C), away from direct sunlight — do not refrigerate as cold temperatures can cause crystallisation. Aqueous solutions: store at 2–8°C. Properly stored, injectable solutions are stable for 2–3 years.”}},{“@type”:”Question”,”name”:”What purity is this QSC injectable and how is it verified?”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”All QSC injectable compounds are ≥99% pure by HPLC on every production batch, with MS-confirmed identity. COA is published on the product page and independently verifiable at verify.janoshik.com.”}}]}
What is Vitamin B12 Methylcobalamin 1mg/mL?
Vitamin B12 Methylcobalamin 1mg/mL (Injectable bioactive cobalamin — research grade) is methylcobalamin — the active, methyl-donor form of B12 — in aqueous injectable solution. Unlike cyanocobalamin, methylcobalamin is the biologically active coenzyme form requiring no conversion. Essential coenzyme for methionine synthase (homocysteine → methionine methylation cycle) and methylmalonyl-CoA mutase (odd-chain fatty acid metabolism). Critical for myelin synthesis, neural function, DNA methylation, and red blood cell production.
Research Applications
Methylation Cycle Research
Methionine synthase coenzyme — homocysteine to methionine conversion and SAM cycle
Neurological & Myelin Research
B12 in Schwann cell myelination — peripheral neuropathy, nerve regeneration, and neurological function
DNA Methylation
SAM-dependent methylation — epigenetic regulation, gene expression, and cell differentiation
B12 Deficiency Models
Injectable B12 for rapid repletion in pernicious anaemia and malabsorption research models
Methylcobalamin vs Cyanocobalamin
Active methylcobalamin direct bioavailability vs cyanocobalamin hepatic conversion requirement
Quick Specs
| Form | Injectable solution |
| Concentration | 1mg/mL methylcobalamin |
| CAS | 13422-55-4 |
| Molecular Formula | C₆₃H₉₁CoN₁₃O₁₄P |
| MW | 1344.4 Da |
| Purity | ≥99% by HPLC — every batch |
| Identity | MS confirmed — every batch |
| COA | Janoshik-independent, publicly verifiable |
| Vehicle | Sterile aqueous solution |
| Storage | 2–8°C | Protect from light | Do not freeze |
| Shelf Life | 24 months (unopened) |
Certificate of Analysis (COA)
Frequently Asked Questions
Frequently asked questions
A seemingly elegant design can quickly begin to bloat with unexpected content or break under the weight of actual activity. Fake data can ensure a nice looking layout but it doesn’t reflect what a living, breathing application must endure. Real data does.
Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.
A seemingly elegant design can quickly begin to bloat with unexpected content or break under the weight of actual activity. Fake data can ensure a nice looking layout but it doesn’t reflect what a living, breathing application must endure. Real data does.
Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.

Reviews
Clear filtersThere are no reviews yet.