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ChemicalBook >> CAS DataBase List >> Vitamin B12

Vitamin B12

Vitamin B12 price.
  • $15 - $3504
  • Product name: Vitamin B12
  • CAS: 68-19-9
  • MF: C63H88CoN14O14P
  • MW: 1355.37
  • EINECS:200-680-0
  • MDL Number:MFCD00151092
  • Synonyms:hepagon ;hepavis ;magravon ;megalovel ;nagravon ;normocytin ;pernaemon ;pernipuron
113 prices
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  • ACHEMBLOCK
  • AK Scientific
  • American Custom Chemicals Corporation
  • ApexBio Technology
  • Apolloscientific
  • AvaChem
  • Biosynth
  • Cayman Chemical
  • Chem-Impex
  • ChemScene
  • Crysdot
  • DC Chemicals
  • Frontier Specialty Chemicals
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • TCI Chemical
  • Thermo Scientific Chemicals
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Package
  • 100mg
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  • 0.005kg
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  • c3000000
  • 10g-f
  • 10g
  • 10mM(in1mLDMSO)
  • 0.05kg
  • 0.1kg
  • 25G
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  • EvaluationSample
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  • 48Tests
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  • ManufacturerACHEMBLOCK
  • Product numberV142778
  • Product descriptionCyanocobalamin 98%
  • Packaging1G
  • Price$23
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberV142778
  • Product descriptionCyanocobalamin 98%
  • Packaging5G
  • Price$68
  • Updated2026-05-27
  • Buy
  • ManufacturerACHEMBLOCK
  • Product numberV142778
  • Product descriptionCyanocobalamin 98%
  • Packaging25G
  • Price$252
  • Updated2026-05-27
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  • ManufacturerAK Scientific
  • Product numberJ94488
  • Product descriptionVitamin B12 98%
  • Packaging25g
  • Price$395
  • Updated2026-06-04
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  • ManufacturerAK Scientific
  • Product numberH486
  • Product descriptionVitamin B12, meet USP Specifications 96.0-102.0%
  • Packaging5g
  • Price$180
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ94488
  • Product descriptionVitamin B12 98%
  • Packaging5g
  • Price$100
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ94488
  • Product descriptionVitamin B12 98%
  • Packaging1g
  • Price$25
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberH486
  • Product descriptionVitamin B12, meet USP Specifications 96.0-102.0%
  • Packaging1g
  • Price$45
  • Updated2026-06-04
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ94488
  • Product descriptionVitamin B12
  • Packaging25g
  • Price$430
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberH486
  • Product descriptionVitamin B12, meet USP Specifications 96.0-102.0%
  • Packaging25g
  • Price$670
  • Updated2026-06-04
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberVIT0000016
  • Product descriptionVITAMIN B12 95.00%
  • Packaging250MG
  • Price$599.33
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberVIT0000016
  • Product descriptionVITAMIN B12 95.00%
  • Packaging1G
  • Price$642.99
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberVIT0000016
  • Product descriptionVITAMIN B12 95.00%
  • Packaging5G
  • Price$976.32
  • Updated2021-12-16
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  • ManufacturerApexBio Technology
  • Product numberB2063
  • Product descriptionVitamin B12
  • PackagingEvaluationSample
  • Price$30
  • Updated2026-05-06
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  • ManufacturerApexBio Technology
  • Product numberB2063
  • Product descriptionVitamin B12
  • Packaging500mg
  • Price$55
  • Updated2026-05-06
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  • ManufacturerApexBio Technology
  • Product numberB2063
  • Product descriptionVitamin B12
  • Packaging10mM(in1mLDMSO)
  • Price$61
  • Updated2026-05-06
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
ACHEMBLOCK V142778 Cyanocobalamin 98% 1G $23 2026-05-27 Buy
ACHEMBLOCK V142778 Cyanocobalamin 98% 5G $68 2026-05-27 Buy
ACHEMBLOCK V142778 Cyanocobalamin 98% 25G $252 2026-05-27 Buy
AK Scientific J94488 Vitamin B12 98% 25g $395 2026-06-04 Buy
AK Scientific H486 Vitamin B12, meet USP Specifications 96.0-102.0% 5g $180 2026-06-04 Buy
AK Scientific J94488 Vitamin B12 98% 5g $100 2026-06-04 Buy
AK Scientific J94488 Vitamin B12 98% 1g $25 2026-06-04 Buy
AK Scientific H486 Vitamin B12, meet USP Specifications 96.0-102.0% 1g $45 2026-06-04 Buy
AK Scientific J94488 Vitamin B12 25g $430 2021-12-16 Buy
AK Scientific H486 Vitamin B12, meet USP Specifications 96.0-102.0% 25g $670 2026-06-04 Buy
American Custom Chemicals Corporation VIT0000016 VITAMIN B12 95.00% 250MG $599.33 2021-12-16 Buy
American Custom Chemicals Corporation VIT0000016 VITAMIN B12 95.00% 1G $642.99 2021-12-16 Buy
American Custom Chemicals Corporation VIT0000016 VITAMIN B12 95.00% 5G $976.32 2021-12-16 Buy
ApexBio Technology B2063 Vitamin B12 EvaluationSample $30 2026-05-06 Buy
ApexBio Technology B2063 Vitamin B12 500mg $55 2026-05-06 Buy
ApexBio Technology B2063 Vitamin B12 10mM(in1mLDMSO) $61 2026-05-06 Buy

Properties

Melting point :>300°C
Boiling point :>300 °C
alpha :23656 -59 ± 9° (dil aq soln)
bulk density :450-600kg/m3
Flash point :9℃
storage temp. :2-8°C
solubility :Sparingly soluble in water and in ethanol (96 per cent), practically insoluble in acetone. The anhydrous substance is very hygroscopic.
form :Crystalline Powder or Crystals
pka :pKa 3.28±0.04(H2O,D2O t=23±0.5 Iunspecied) (Uncertain)
color :Red to dark red
Odor :dark red cryst. or powd., odorless and tasteless
PH :6.0 (20°C, 1g/L in H2O)
biological source :synthetic ((organic))
Water Solubility :Soluble
Sensitive :Hygroscopic
Merck :14,10014
BRN :4122889
Exposure limits :NIOSH: IDLH 25 mg/m3
Stability :Hygroscopic. Keep cold and dry.
Cosmetics Ingredients Functions :SKIN CONDITIONING
InChIKey :RMRCNWBMXRMIRW-WZHZPDAFSA-L
LogP :3.570 (est)
EPA Substance Registry System :Vitamin B12 (68-19-9)

Safety Information

Symbol(GHS): Flame (GHS02)Skull and Crossbones (GHS06)Health Hazard (GHS08)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H370 Causes damage to organs Specific target organ toxicity, single exposure Category 1 Danger P260, P264, P270, P307+P311, P321,P405, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
P311 Call a POISON CENTER or doctor/physician.

Description

Vitamin B12 is a water-soluble vitamin with roles in brain and nervous system functioning and blood formation through regulation of DNA synthesis, cellular metabolism, fatty acid metabolism, and amino acid metabolism. It belongs to the corrinoid group of compounds, which contain a corrin macrocycle, and is produced only by certain bacteria and archaea. Reference to vitamin B12 usually encompasses a group of cobalt-containing compounds (or cobalamins), which include cyanocobalamin, hydroxocobalamin, 5'-deoxyadenosylcobalamin (AdoB12), and methylcobalamin (MeB12). These forms serve as cofactors in isomerase-, methyltransferase-, and dehalogenase-catalyzed reactions. For example, methylmalonyl coenzyme A mutase acts on AdoB12 to convert methylmalonyl-CoA to succinyl-CoA, an important step before entry into the Kreb’s cycle. Additionally, methionine synthase uses MeB12 to transfer a methyl group from 5-methyltetrahydrofolate to homocysteine to generate tetrahydrofolate and methionine, which is important for DNA synthesis.

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