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71435

Sodium cyanoborohydride

purum, ≥95.0% (RT)

Synonym(s):

Sodium cyanotrihydridoborate

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About This Item

Linear Formula:
NaBH3CN
CAS Number:
25895-60-7
Molecular Weight:
62.84
EC Number:
247-317-2
UNSPSC Code:
12352000
PubChem Substance ID:
329763275
Beilstein/REAXYS Number:
4152656
MDL number:
MFCD00003516
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grade

purum

assay

≥95.0% (RT)

reaction suitability

reagent type: reductant

mp

>242 °C (dec.) (lit.)

solubility

THF: soluble(lit.), alcohol: soluble(lit.), hydrocarbons: insoluble(lit.), water: soluble(lit.)

SMILES string

[Na+].[BH3-]C#N

InChI

1S/CH3BN.Na/c2-1-3;/h2H3;/q-1;+1

InChI key

CVDUGUOQTVTBJH-UHFFFAOYSA-N

General description

Sodium cyanoborohydride is a versatile reducing agent stable in aqueous solution at pH 7.2. It is a weaker reducing agent as compared to NaBH4. It effectively reduces Schiff bases. NaCNBH4 participates in the reductive methylation for the efficient and selective conversion of the ε-amino groups of lysyl residues in proteins to the mono- and dimethyl derivatives.
Review on sodium cyanoborohydride has been reported. It participates in selective reductions with NaCNBH3, modified with zinc chloride, with zinc iodide.

Application

Sodium cyanoborohydride may be used in the following studies:
  • As reducing agent for the in vitro radiolabeling of proteins by reductive alkylation.
  • Reduction of aldehydes and ketones.
  • Selective deoxygenation of aldehydes and ketones.
  • Preparation of colloidal gold particles of varying sizes.

Other Notes

Review; selctive reductions with NaCNBH3, modified with zinc chloride; with zinc iodide

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Danger

supp_hazards

EUH032

Storage Class

4.3 - Hazardous materials which set free flammable gases upon contact with water

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Sol. 1 - Skin Corr. 1B - Water-react. 1

Regulatory Information

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S. Kim et al.
The Journal of Organic Chemistry, 50, 1927-1927 (1985)
C.K. Lau et al.
The Journal of Organic Chemistry, 51, 3038-3038 (1986)
C.F. Lane
Synthesis, 135-135 (1975)
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