Merck
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Safety Information

33-0550

Sigma-Aldrich

Cyanocobalamin

SAJ special grade, ≥95.0%

Synonym(s):
Vitamin B12, α-(5,6-Dimethylbenzimidazolyl)cyanocobamide, CN-Cbl, Cyanocob(III)alamin, Cyanocobalamin
Empirical Formula (Hill Notation):
C63H88CoN14O14P
CAS Number:
Molecular Weight:
1355.37
Beilstein:
4122889
PubChem Substance ID:

grade

SAJ special grade

Assay

≥95.0%

form

solid

availability

available only in Japan

color

white

mp

>300 °C (decomposes before melting)

storage temp.

2-8°C

SMILES string

C/C(C1=N[C@]([C@]([C@H](CC(N)=O)[C@@]/2(C)CCC(NC[C@@H](OP([O-])(O[C@H]3[C@@H](O)[C@@H](N4C=[N]5C6=C4C=C(C)C(C)=C6)O[C@@H]3CO)=O)C)=O)([H])N([Co+]5C#N)C2=C(C)/C([C@@H](CCC(N)=O)C/7(C)C)=NC7=C/8)(C)[C@@](C)(CC(N)=O)[C@@H]1CCC(N)=O)=C9N=C8[C@@H](CCC(N)=O)[C@

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;;+2/p-2/t31-,34-,35-,36-,37+,41-,52-,53-,56-,57?,59-,60+,61+,62+;;/m1../s1

InChI key

RMRCNWBMXRMIRW-QJRSUKKJSA-L

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1 of 4

This Item
PHR123443107C3607
Cyanocobalamin SAJ special grade, ≥95.0%

Sigma-Aldrich

33-0550

Cyanocobalamin

Cyanocobalamin pharmaceutical secondary standard, certified reference material

Supelco

PHR1234

Cyanocobalamin

Cyanocobalamin tested according to Ph. Eur.

Sigma-Aldrich

43107

Cyanocobalamin

Cyanocobalamin meets USP testing specifications

Sigma-Aldrich

C3607

Cyanocobalamin

assay

≥95.0%

assay

-

assay

96.0-102.0% dry basis

assay

96.0-102.0% dry basis

form

solid

form

-

form

powder

form

powder

color

white

color

-

color

dark red

color

dark red

mp

>300 °C (decomposes before melting)

mp

-

mp

-

mp

-

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

storage temp.

2-8°C

Storage Class Code

11 - Combustible Solids

WGK

WGK 1


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

33-0550-0-100MG-J:4.548173018294E12


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Sabina Lutz et al.
Journal of the American Animal Hospital Association, 49(3), 197-203 (2013-03-29)
Juvenile cobalamin deficiency is a rare disease in border collies and its diagnosis requires a high level of clinical suspicion. The goal of this study was to increase awareness of this disease by describing the clinical and laboratory findings in
Johan Frederik Berg Arendt et al.
Journal of the National Cancer Institute, 105(23), 1799-1805 (2013-11-20)
A substantial proportion of patients referred for plasma vitamin B12 (cobalamin [Cbl]) measurement present with high Cbl levels, which have been reported in patients with different cancer types. However, the cancer risk among patients with newly diagnosed high Cbl levels
Bert-Ram Sah et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 55(1), 43-49 (2013-12-18)
Targeting cancer cells with vitamin B12 (cobalamin) is hampered by unwanted physiologic tissue uptake mediated by transcobalamin. Adhering to good manufacturing practice, we have developed a new (99m)Tc-cobalamin derivative ((99m)Tc(CO)3-[(4-amido-butyl)-pyridin-2-yl-methyl-amino-acetato] cobalamin, (99m)Tc-PAMA-cobalamin). The derivative shows no binding to transcobalamin but
David Preiss et al.
The lancet. Diabetes & endocrinology, 2(2), 116-124 (2014-03-14)
Metformin reduces cardiovascular risk in patients with type 2 diabetes seemingly independent of lowering blood glucose concentration. We assessed the cardiovascular effects of metformin in individuals without type 2 diabetes. We did a single-centre, double-blind, placebo-controlled trial at the Glasgow
Bamini Gopinath et al.
The American journal of clinical nutrition, 98(1), 129-135 (2013-05-03)
Epidemiologic evidence of a relation between serum total homocysteine (tHcy), vitamin B-12, and folate and age-related macular degeneration (AMD) is inconsistent and unresolved. In this cohort study, we aimed to investigate associations between intakes and serum concentrations of folate and

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