Vitamin B12
Coming soon Buy 1 Get 1 Free 20% off · active now- 99%+ HPLC purity — Third-party tested, every batch
- COA for every lot — Download the full report below
- Lyophilized for stability — Packed to arrive intact
- Ships from Charleston, SC — Fast domestic shipping
- Class
- Research peptide
- Application
- Research use only
- Form
- Lyophilized powder
- Storage
- −20 °C long term
- Purity (HPLC)
- 99%+ third-party verified
- Origin
- Ships from Charleston, SC
Phantom Peptides’ Vitamin B12 Product Specifications
| Product name | Vitamin B12 |
|---|---|
| Peptide class | Research peptide |
| Purity | 99%+ HPLC verified |
| Form | Lyophilized powder |
| Testing | Third-party tested |
| Documentation | Certificate of Analysis available |
| Storage | −20 °C long term |
| Application | Research use only |
| SKU | 25 |
Vitamin B12 10mg/10mL
Cyanocobalamin is a synthetic, stable form of vitamin B12, an essential cobalt-containing compound that serves as a cofactor in methylation, red blood cell formation, and neurological function. Unlike methylcobalamin or hydroxocobalamin, cyanocobalamin's structure includes a cyanide group bound to the cobalt core, which contributes to its shelf stability and has made it the most extensively studied form of B12 in clinical and laboratory research.
Each vial ships with 10mL of 1mg/mL cyanocobalamin solution in a sealed glass vial, backed by Phantom Peptides' internal verification standard: independent third-party lab analysis.
Product Specifications
- Compound: Cyanocobalamin (Vitamin B12)
- Class: Water-soluble B-vitamin / cobalamin analog
- Concentration: 1mg/mL
- Molecular Weight: ~1,355 Da
- Form: Sterile solution
- Vial Size: 10mL
- Purity: 99%+, confirmed via HPLC and mass spec (COAs available)
Research Background
The existing literature on cyanocobalamin spans several distinct research threads:
- Methylation and one-carbon metabolism: studies on B12's role as a cofactor in methionine synthase activity and downstream methylation cycles
- Erythropoiesis research: cellular and animal models examining B12's function in red blood cell maturation and DNA synthesis
- Neurological function studies: research into B12's role in myelin maintenance and homocysteine metabolism in neuronal models
- Comparative cobalamin research: cyanocobalamin studied alongside methylcobalamin and hydroxocobalamin to characterize differences in stability, bioavailability, and metabolic conversion
- Deficiency model research: laboratory models examining cellular and systemic effects of B12 depletion and repletion
Cyanocobalamin has been one of the most widely characterized cobalamin forms in biochemical literature since its structural elucidation in the mid-20th century, with a large body of published work spanning academic and clinical research institutions globally. For primary sources, PubMed (pubmed.ncbi.nlm.nih.gov) and NIH's PMC database (pmc.ncbi.nlm.nih.gov) index the peer reviewed literature on cobalamin research.
Important Notice
Phantom Peptides supplies Vitamin B12 strictly for laboratory research. It is not intended for human or veterinary use, and no dosage or administration guidance is provided. Any discussion of biological activity refers only to published preclinical or in vitro research.
Why buy from us
Every vial of Vitamin B12 we ship is backed by third-party analytical testing and a certificate of analysis you can read before you order. We focus on a short list of research compounds so each one gets the attention it needs.
- Third-party verified. Each batch is tested by an independent laboratory for purity and identity.
- Published COAs. The report for the current batch is linked on this page.
- Consistent supply. Lyophilized, sealed and labeled with batch information for traceability.
- Real support. Questions about an order or a document? Our team answers from Charleston, SC.
Storage
Before reconstitution
Store the lyophilized powder at or below 8 °C in a dry place, away from light. For long-term storage, keep it frozen at −20 °C.
After reconstitution
Refrigerate at 2–8 °C and use within 30 days. For longer preservation, aliquot and freeze at −20 °C, and avoid repeated freeze–thaw cycles.
Shipping
Orders ship from Charleston, SC with tracking on every package. Vials are packed to protect them in transit, and you can check estimated delivery times for your state on the shop page.
- HPLC testedIndependent lab verified
- COA every batchPublished and downloadable
- 99%+ purityConfirmed per lot
- Ships from Charleston, SCTracked domestic delivery
- Lyophilized powderSealed for stability
- Research use onlyNot for human consumption
Certificate of Analysis
The certificate of analysis for Vitamin B12 is not ready yet.
Every batch of Vitamin B12 is independently tested before shipment. The full analytical report is available to download.
Lab analysis — independent third-party testing
| HPLC purity | 99%+ |
|---|---|
| Identity (mass spectrometry) | Confirmed |
| Appearance | White lyophilized powder |
| Testing | Independent third-party laboratory |
| Documentation | Full COA (PDF) below |
Certificate of Analysis
Verified- HPLC purity: 99%+
- Identity (mass spectrometry): Confirmed
- Appearance: White lyophilized powder
- Testing: Independent third-party laboratory
Why Researchers Choose Phantom Peptides
Not all peptide vendors hold themselves to the same verification standards.
| Verification standard | Phantom Peptides | Generic vendors |
|---|---|---|
| HPLC purity analysis | 99%+ every batch | Often not disclosed |
| Mass spectrometry identity | Confirmed | Rarely available |
| COA published and downloadable | Every lot | Inconsistent |
| Batch-labeled vials | Yes | Sometimes |
| Ships from the USA | Charleston, SC | Often overseas |
| Research-use labeling | Clear on every vial | Varies |
Frequently Asked Questions
1. Is Vitamin B12 supplied as a lyophilized powder?
Yes. Vitamin B12 ships as a lyophilized (freeze-dried) powder, which removes moisture and helps keep the compound stable until it is reconstituted for research.
2. How is the purity of Vitamin B12 verified?
Each batch is tested by an independent laboratory using HPLC for purity and mass spectrometry for identity. The certificate of analysis for the current batch is linked on this page.
3. What does 99%+ HPLC purity mean?
High-performance liquid chromatography separates a sample into its components. A 99%+ result means the target compound makes up at least that percentage of the measured sample.
4. How should Vitamin B12 be stored before reconstitution?
Keep the sealed vial at or below 8 °C in a dry place, away from light. For long-term storage, keep it frozen at −20 °C.
5. How long is Vitamin B12 stable after reconstitution?
Refrigerated at 2–8 °C, use within 30 days. For longer preservation, aliquot and freeze at −20 °C and avoid repeated freeze–thaw cycles.
6. Can I see the COA before I order?
Yes. The full COA is available to download in the Certificate of Analysis section above, and on our COA page.
7. Is Vitamin B12 intended for human use?
No. Vitamin B12 is sold for laboratory research use only. It is not for human or veterinary consumption, and we do not provide dosage or administration guidance.
8. Where do orders ship from?
All orders ship from Charleston, SC with tracking.
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