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95200

Sigma-Aldrich

Vitamin B12a hydrochloride

≥96% (UV), ≥96% (HPLC)

Synonym(s):
Hydroxocobalamin hydrochloride
Empirical Formula (Hill Notation):
C62H89CoN13O15P · HCl
CAS Number:
Molecular Weight:
1382.82
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.79

biological source

fermentation/recombinant

Quality Level

Assay

≥96% (HPLC)
≥96% (UV)

form

powder or crystals

loss

≤12% loss on drying, 20 °C (HV)

color

red to dark red

solubility

methanol: 10 mg/mL at 20 °C, clear, dark red

storage temp.

2-8°C

SMILES string

Cl.C[C@H](CNC(=O)CC[C@]1(C)[C@@H](CC(N)=O)[C@H]2N([Co+]O)C1=C(C)C3=NC(=CC4=NC(=C(C)C5=N[C@]2(C)[C@@](C)(CC(N)=O)[C@@H]5CCC(N)=O)[C@@](C)(CC(N)=O)[C@@H]4CCC(N)=O)C(C)(C)[C@@H]3CCC(N)=O)OP([O-])(=O)O[C@H]6[C@@H](O)[C@H](O[C@@H]6CO)n7cnc8cc(C)c(C)cc78

InChI

1S/C62H90N13O14P.ClH.Co.H2O/c1-29-20-39-40(21-30(29)2)75(28-70-39)57-52(84)53(41(27-76)87-57)89-90(85,86)88-31(3)26-69-49(83)18-19-59(8)37(22-46(66)80)56-62(11)61(10,25-48(68)82)36(14-17-45(65)79)51(74-62)33(5)55-60(9,24-47(67)81)34(12-15-43(63)77)38(71-55)23-42-58(6,7)35(13-16-44(64)78)50(72-42)32(4)54(59)73-56;;;/h20-21,23,28,31,34-37,41,52-53,56-57,76,84H,12-19,22,24-27H2,1-11H3,(H15,63,64,65,66,67,68,69,71,72,73,74,77,78,79,80,81,82,83,85,86);1H;;1H2/q;;+3;/p-3/t31-,34-,35-,36-,37+,41-,52-,53-,56-,57+,59-,60+,61+,62+;;;/m1.../s1

InChI key

KEHNCSYXYMMUCO-BXSGNKEGSA-K

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This Item
H71265.2495017938
Vitamin B12a hydrochloride analytical standard

Supelco

H7126

Vitamin B12a hydrochloride

Vitamin B12 (cyanocobalamin) EMPROVE® ESSENTIAL, Ph. Eur., BP, USP

SAFC

5.24950

Vitamin B12 (cyanocobalamin)

biological source

fermentation/recombinant

biological source

-

biological source

-

biological source

synthetic

assay

≥96% (HPLC), ≥96% (UV)

assay

≥95%

assay

-

assay

≥99.0% (HPLC)

form

powder or crystals

form

-

form

solid

form

powder or crystals

color

red to dark red

color

dark red to brown-red

color

-

color

white to off-white

solubility

methanol: 10 mg/mL at 20 °C, clear, dark red

solubility

-

solubility

12 g/L

solubility

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

15-25°C

storage temp.

−20°C

Application

Vitamin B12a hydrochloride has been used as an antidote for cyanide poisoning.

Biochem/physiol Actions

Vitamin B12 (cobalamin) refers to a group of chemically-related cobalt containing molecules involved in cell processes such as DNA synthesis, fatty acid synthesis, energy production and regulation. The physiologically active forms of vitamin B12 include methylcobalamin and adenosylcobalamin, whereas hydroxocobalamin (vitamin B12a, OHCbl) and cyanocobalamin (CNCbl) are storage and delivery forms. Bacteria-derived hydroxocobalamin (OHCbl) and CNCbl are converted in humans to useful coenzyme forms to support metabolic processes such as mitochondrial methylmalonylcoenzyme A mutase conversion of methylmalonic acid (MMA) to succinate to link lipid and carbohydrate metabolism, and activation of methionine synthase, the rate limiting step in the synthesis of methionine.

Other Notes

Review

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

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