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Merck
CN

1.24592

Vitamin B12

for biochemistry

Synonym(s):

Vitamin B₁₂, Cyanocobalamin

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About This Item

CAS Number:
68-19-9
Molecular Weight:
1355.37
MDL number:
MFCD00151092
UNSPSC Code:
12352203
EC Index Number:
200-680-0
NACRES:
NA.21

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Product Name

Vitamin B12, for biochemistry

SMILES string

[Co+3].[P](=O)([O-])(O[C@@H]6[C@H](O[C@@H]([C@@H]6O)[n]7c8c(nc7)cc(c(c8)C)C)CO)O[C@@H](CNC(=O)CC[C@@]1([C@H]([C@H]2N=C1\C(=C3/N=C(C([C@@H]/3CCC(=O)N)(C)C)\C=C4/N=C([C@]([C@@H]/4CCC(=O)N)(CC(=O)N)C)C(=C5[N-][C@@]2([C@]([C@@H]5CCC(=O)N)(CC(=O)N)C)C)C)\C)CC(

InChI

1S/C62H90N13O14P.CN.Co/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;1-2;/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);;/q;-1;+3/p-2/t31-,34-,35-,36-,37+,41-,52-,53-,56-,57+,59-,60+,61+,62+;;/m1../s1

InChI key

FDJOLVPMNUYSCM-WZHZPDAFSA-L

form

solid

pH

6.0 (20 °C, 1 g/L in H2O)

mp

>300 °C

solubility

12 g/L

bulk density

450‑600 kg/m3

storage temp.

15-25°C

Quality Level

100

Analysis Note

Assay (photometric, calculated on dried substance)97.0 - 100.0 %Identity (IR-spectrum)conformsAbsorption ratio (A 361 nm/278 nm)1.70 - 1.88Absorption ratio (A 361 nm/550 nm)3.15 - 3.40Absorption ratio (A 351 nm/361 nm)0.57 - 0.65Acetone (HS-GC)≤ 5000 ppmOther residual solvents (ICH Q3C)excluded by production processRelated substances (HPLC)≤ 3.0 %Loss on Drying (105 °C)≤ 4.0 %

Application

Vitamin B₁₂ for biochemistry. CAS 68-19-9, pH 6.0 (1 g/l, H₂O, 20 °C).

General description

for biochemistry

Storage Class

11 - Combustible Solids

wgk

WGK 1

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