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C3021

Sigma-Aldrich

Dicyanocobinamide

≥93%

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Synonym(s):
Cobinamide dicyanide, Etiocobalamin, Factor B
Empirical Formula (Hill Notation):
C50H72CoN13O8
CAS Number:
Molecular Weight:
1042.12
MDL number:
PubChem Substance ID:
NACRES:
NA.79

biological source

synthetic (organic)

Assay

≥93%

form

powder

impurities

≤0.1% vitamin B12

color

purple to very dark purple

storage temp.

−20°C

SMILES string

N#C[Co]C#N.C[C@H](O)CNC(=O)CC[C@]1(C)[C@@H](CC(N)=O)C2N=C1C(C)=C3N=C(C=C4N=C(C(C)=C5N[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

InChI

1S/C48H73N11O8.2CN.Co/c1-23(60)22-55-38(67)16-17-45(6)29(18-35(52)64)43-48(9)47(8,21-37(54)66)28(12-15-34(51)63)40(59-48)25(3)42-46(7,20-36(53)65)26(10-13-32(49)61)30(56-42)19-31-44(4,5)27(11-14-33(50)62)39(57-31)24(2)41(45)58-43;2*1-2;/h19,23,26-29,43,59-60H,10-18,20-22H2,1-9H3,(H2,49,61)(H2,50,62)(H2,51,63)(H2,52,64)(H2,53,65)(H2,54,66)(H,55,67);;;/b30-19-,39-24-,40-25-;;;/t23-,26+,27+,28+,29-,43?,45+,46-,47-,48-;;;/m0.../s1

InChI key

NJATWHPHZUGTHR-GXEWULDJSA-N

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This Item
SML1277G3381C0884
Dicyanocobinamide ≥93%

Sigma-Aldrich

C3021

Dicyanocobinamide

Sigma-Aldrich

Sigma-Aldrich

SML1277

Geldanamycin-FITC

Coenzyme B12 ≥97.0%

Sigma-Aldrich

C0884

Coenzyme B12

assay

≥93%

assay

≥98% (HPLC)

assay

≥98% (HPLC)

assay

≥97.0%

form

powder

form

powder

form

powder

form

powder and chunks

color

purple to very dark purple

color

yellow to yellow-orange

color

yellow to orange

color

red to very dark red, very dark red-brown

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

Quality Level

200

Quality Level

200

Quality Level

300

Quality Level

100

General description

Dicyanocobinamide, also known as factor b is a coenzyme B12 precursor. It has a corrin ring structure with four of the six coordination sites of the cobalt (Co) atom being the pyrrole nitrogen atoms.

Application

Dicyanocobinamide has been used for the crystallization of vitamin B12-binding protein (BtuF). It has also been used for the destabilization of BtuCD-BtuF Interaction.
For use in determining non-intrinsic factor (R protein) in intrinsic factor preparations.

Biochem/physiol Actions

Dicyanocobinamide (Cbi) functions as a soluble guanylate cyclase (sGC) co-activator and targets the N-terminal regulatory regions. This action is similar to the effect of forskolin on adenylyl cyclases. Dicyanocobinamide elevates the intracellular cyclic guanosine monophosphate (cGMP) levels and exhibits vasorelaxant activity in rats. It is used along with various cobalamins in studies of the inhibition of HIV-1 integrase and nitric oxide synthase.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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Conformational change of a tryptophan residue in BtuF facilitates binding and transport of cobinamide by the vitamin B12 transporter BtuCD-F
Mireku SA, et al.
Scientific reports, 7, 41575-41575 (2017)
Anne-Sophie Ruget et al.
Frontiers in veterinary science, 6, 455-455 (2020-01-11)
Peste des petits ruminants virus (PPRV), responsible for peste des petits ruminants (PPR), is widely circulating in Africa and Asia. The disease is a huge burden for the economy and development of the affected countries. In Eastern Africa, the disease
Longxing Cao et al.
Proceedings of the National Academy of Sciences of the United States of America, 113(47), 13438-13443 (2016-11-09)
Clearance of dead cells is critical for maintaining homeostasis and prevents autoimmunity and inflammation. When cells undergo apoptosis and necrosis, specific markers are exposed and recognized by the receptors on phagocytes. DEC205 (CD205) is an endocytotic receptor on dendritic cells
The Different Effects of Substrates and Nucleotides on the Complex Formation of ABC Transporters
Fiorentino F, et al.
Structure, 27(4), 651-659 (2019)
Inhibition of nitric oxide synthase by cobalamins and cobinamides
Weinberg JB, et al.
Free Radical Biology & Medicine, 46(12), 1626-1632 (2009)

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