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Sigma-Aldrich

Sodium cyanoborohydride solution

5.0 M in 1 M NaOH

Synonym(s):

Sodium borocyanohydride, Sodium cyanoborohydride, Sodium cyanotrihydroborate

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About This Item

Linear Formula:
NaBH3CN
CAS Number:
25895-60-7
Molecular Weight:
62.84
MDL number:
MFCD00003516
UNSPSC Code:
12352306
PubChem Substance ID:
24857889
NACRES:
NA.22
Pricing and availability is not currently available.

Quality Level

200

reaction suitability

reagent type: reductant

concentration

5.0 M in 1 M NaOH

density

1.083 g/mL at 25 °C

SMILES string

[Na+].[H][B-]([H])([H])C#N

InChI

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

InChI key

CVDUGUOQTVTBJH-UHFFFAOYSA-N

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General description

Sodium cyanoborohydride is a selective, mild reducing reagent for a number of functional groups such as aldehydes, ketones, acetals, epoxides and imines.[1]

Application

Reactant for:
  • Direct conversion of heterocyclic aldehydes to esters (oxidizing behavior)
  • Reductive amination reactions
  • Intramolecular reductive cyclization reactions
  • Reductions reactions
  • Preparation of dicyanoborate-based ionic liquids as hypergolic fluids for bipropellants

Signal Word

Danger

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 2 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B

Supplementary Hazards

EUH032

Storage Class Code

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Certificates of Analysis (COA)

Lot/Batch Number
SHBQ6328
SHBP0470
SHBN8928
SHBP9520
SHBP4275

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e-EROS Encyclopedia of Reagents for Organic Synthesis (2016)
Franklin Afinjuomo et al.
Pharmaceutics, 11(5) (2019-05-28)
The propensity of monocytes to migrate into sites of mycobacterium tuberculosis (TB) infection and then become infected themselves makes them potential targets for delivery of drugs intracellularly to the tubercle bacilli reservoir. Conventional TB drugs are less effective because of
Shinsuke Sando et al.
Bioorganic & medicinal chemistry letters, 13(16), 2633-2636 (2003-07-23)
We report here that unprotected carbohydrates (maltose, lactose, cellobiose, and maltoheptaose) can be attached to the aminoalkylated oligonucleotides under mild reductive-amination conditions (aqueous borate buffer, pH 8.0, NaBH(3)CN, 60 degrees C) without notable side reactions. Quadruplex-forming G-rich oligonucleotide, 5'-aminoalkyl d(TGGGGT)
Jue-Liang Hsu et al.
Electrophoresis, 27(18), 3652-3660 (2006-08-24)
Stable-isotope labeling coupled with liquid-phase separation and MS analysis is a powerful technique for comparative proteomics. We developed a dimethyl labeling strategy (Anal. Chem. 2003, 75, 6843-6852 and J. Proteome Res. 2005, 4, 101-108) to label peptide N-terminus and epsilon-amino
Chika Wakita et al.
The Journal of biological chemistry, 284(42), 28810-28822 (2009-08-21)
4-Hydroxy-2-nonenal (HNE), a major racemic product of lipid peroxidation, preferentially reacts with cysteine residues to form a stable HNE-cysteine Michael addition adduct possessing three chiral centers. Here, to gain more insight into sulfhydryl modification by HNE, we characterized the stereochemical
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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