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ChemicalBook >> CAS DataBase List >> Vitamin B12

Vitamin B12

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  • $15 - $1870
  • 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
55 prices
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Brand

  • AK Scientific
  • Alfa Aesar
  • American Custom Chemicals Corporation
  • Apolloscientific
  • AvaChem
  • Cayman Chemical
  • Chem-Impex
  • ChemScene
  • Crysdot
  • DC Chemicals
  • Frontier Specialty Chemicals
  • Medical Isotopes, Inc.
  • Sigma-Aldrich
  • TCI Chemical
  • TRC
  • Usbiological

Package

  • 100mg
  • 150MG
  • 250MG
  • 2X150MG
  • 500mg
  • 1mL
  • 1g
  • 5g
  • 10g
  • 10g-f
  • 25g
  • c3000000
  • 100G
  • 48Tests
  • ManufacturerAK Scientific
  • Product numberJ94488
  • Product descriptionVitamin B12
  • Packaging25g
  • Price$430
  • Updated2022-12-16
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA14894
  • Product descriptionVitamin B12, 98+% (dry wt basis)
  • Packaging1g
  • Price$121
  • Updated2025-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA14894
  • Product descriptionVitamin B12, 98+% (dry wt basis)
  • Packaging5g
  • Price$336
  • Updated2025-03-01
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA14894
  • Product descriptionVitamin B12, 98+% (dry wt basis)
  • Packaging25g
  • Price$1094
  • Updated2025-03-01
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberVIT0000016
  • Product descriptionVITAMIN B12 95.00%
  • Packaging250MG
  • Price$599.33
  • Updated2022-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberVIT0000016
  • Product descriptionVITAMIN B12 95.00%
  • Packaging1G
  • Price$642.99
  • Updated2022-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberVIT0000016
  • Product descriptionVITAMIN B12 95.00%
  • Packaging5G
  • Price$976.32
  • Updated2022-12-16
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  • ManufacturerApolloscientific
  • Product numberBIV6236
  • Product descriptionVitamin B12 USPgrade
  • Packaging250mg
  • Price$15
  • Updated2022-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberBIV6236
  • Product descriptionVitamin B12 USPgrade
  • Packaging1g
  • Price$45
  • Updated2022-12-16
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  • ManufacturerApolloscientific
  • Product numberBIV6236
  • Product descriptionVitamin B12 USPgrade
  • Packaging5g
  • Price$155
  • Updated2022-12-16
  • Buy
  • ManufacturerAvaChem
  • Product number3627
  • Product descriptionCyanocobalamin
  • Packaging1g
  • Price$49
  • Updated2022-12-16
  • Buy
  • ManufacturerAvaChem
  • Product number3627
  • Product descriptionCyanocobalamin
  • Packaging5g
  • Price$105
  • Updated2022-12-16
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  • ManufacturerAvaChem
  • Product number3627
  • Product descriptionCyanocobalamin
  • Packaging25g
  • Price$375
  • Updated2022-12-16
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  • ManufacturerCayman Chemical
  • Product number18425
  • Product descriptionVitamin B12 ≥95%
  • Packaging500mg
  • Price$25
  • Updated2022-12-16
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  • ManufacturerCayman Chemical
  • Product number18425
  • Product descriptionVitamin B12 ≥95%
  • Packaging1g
  • Price$45
  • Updated2022-12-16
  • Buy
  • ManufacturerCayman Chemical
  • Product number18425
  • Product descriptionVitamin B12 ≥95%
  • Packaging5g
  • Price$100
  • Updated2022-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AK Scientific J94488 Vitamin B12 25g $430 2022-12-16 Buy
Alfa Aesar A14894 Vitamin B12, 98+% (dry wt basis) 1g $121 2025-03-01 Buy
Alfa Aesar A14894 Vitamin B12, 98+% (dry wt basis) 5g $336 2025-03-01 Buy
Alfa Aesar A14894 Vitamin B12, 98+% (dry wt basis) 25g $1094 2025-03-01 Buy
American Custom Chemicals Corporation VIT0000016 VITAMIN B12 95.00% 250MG $599.33 2022-12-16 Buy
American Custom Chemicals Corporation VIT0000016 VITAMIN B12 95.00% 1G $642.99 2022-12-16 Buy
American Custom Chemicals Corporation VIT0000016 VITAMIN B12 95.00% 5G $976.32 2022-12-16 Buy
Apolloscientific BIV6236 Vitamin B12 USPgrade 250mg $15 2022-12-16 Buy
Apolloscientific BIV6236 Vitamin B12 USPgrade 1g $45 2022-12-16 Buy
Apolloscientific BIV6236 Vitamin B12 USPgrade 5g $155 2022-12-16 Buy
AvaChem 3627 Cyanocobalamin 1g $49 2022-12-16 Buy
AvaChem 3627 Cyanocobalamin 5g $105 2022-12-16 Buy
AvaChem 3627 Cyanocobalamin 25g $375 2022-12-16 Buy
Cayman Chemical 18425 Vitamin B12 ≥95% 500mg $25 2022-12-16 Buy
Cayman Chemical 18425 Vitamin B12 ≥95% 1g $45 2022-12-16 Buy
Cayman Chemical 18425 Vitamin B12 ≥95% 5g $100 2022-12-16 Buy

Properties

Melting point :>300°C
alpha :23656 -59 ± 9° (dil aq soln)
Boiling point :>300 °C
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.
pka :pKa 3.28±0.04(H2O,D2O t=23±0.5 Iunspeci?ed) (Uncertain)
form :Crystalline Powder or Crystals
color :Red to dark red
Odor :dark red cryst. or powd., odorless and tasteless
Water Solubility :Soluble
Sensitive :Hygroscopic
Merck :14,10014
BRN :4122889
Exposure limits :NIOSH: IDLH 25 mg/m3
Stability :Hygroscopic. Keep cold and dry.
InChIKey :RMRCNWBMXRMIRW-WZHZPDAFSA-L
LogP :3.570 (est)
EPA Substance Registry System :

Safety Information

Symbol(GHS): trực tiếp đá gà hôm nayLiên kết đăng nhậptrực tiếp đá gà hôm nayLiên kết đăng nhậptrực tiếp đá gà hôm nayLiên kết đăng nhập
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 trực tiếp đá gà hôm nayLiên kết đăng nhập 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 trực tiếp đá gà hôm nayLiên kết đăng nhập 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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