33725-74-5

Basic information

• Product Name: Tetrabutylammonium borohydride
• Synonyms: Tetra-n-butylammonium borohydride 98%;1-Butanaminium, N,N,N-tributyl-, tetrahydroborate;n,n,n-tributyl-1-butanaminiu tetrahydroborate;Tetrabutylammonium Borohydride [Reducing Reagent];N,N,N-Tributyl-1-Butanaminiutet;TetrabutylammoniumBorohydrate;Tetrabutylannonium borohydride;[Reducing Reagent]
• CAS NO: 33725-74-5
• Molecular Formula: C16H40BN
• Molecular Weight: 257.31
• EINECS: 251-658-2
• Product Categories: Miscellaneous;API intermediates;Ammonium Polyhalides, etc. (Quaternary);B (Classes of Boron Compounds);Quaternary Ammonium Compounds;Reduction;Synthetic Organic Chemistry;Tetrahydroborates;Borohydrides;Synthetic Reagents;metal hydrides;Pyridines ,Heterocyclic Acids
• Mol File: 33725-74-5.mol
• Article Data: 0

Chemical Properties

• Melting Point: 124-128 °C(lit.)
• Flash Point: 140°(284°F)
• Appearance: White/Crystalline Powder and Chunks
• Storage Temp.: water-free area
• Solubility: Chloroform (Sparingly), DMSO (Sparingly, Heated, Sonicated), Methanol (Slightly
• Water Solubility: Soluble
• Sensitive: Moisture Sensitive
• Stability: Hygroscopic, Moisture Sensitive
• BRN: 4212332
• CAS DataBase Reference: Tetrabutylammonium borohydride(CAS DataBase Reference)
• NIST Chemistry Reference: Tetrabutylammonium borohydride(33725-74-5)
• EPA Substance Registry System: Tetrabutylammonium borohydride(33725-74-5)

Safety Data

• Hazard Codes: F,C,Xi
• Statements: 15-34-36/37/38
• Safety Statements: 26-36/37/39-43-7/8-37/39-25
• RIDADR: UN 3131 4.3/PG 2
• WGK Germany: 3
• F: 10
• TSCA: Yes
• HazardClass: 4.3
• PackingGroup: I
• Hazardous Substances Data: 33725-74-5(Hazardous Substances Data)

Usage

Chemical Properties

white crystalline powder

Uses

Tetrabutylammonium Borohydride is a strong reducing agent used in the synthesis of hyperbranched polyglycerol grafting on the surface of silica-coated nanoparticles.

Purification Methods

Purify it by recrystallisation from EtOAc followed by careful drying under vacuum at 50-60o. Samples purified in this way showed no signs of loss of active H after storage at room temperature for more than 1year. Nevertheless samples should be stored at ca 6o in tightly stoppered bottles if kept for long periods. It is soluble in CH2Cl2. [Raber & Guida J Org Chem 41 690 1976, Br.ndstr.m et al. Tetrahedron Lett 3173 1972.]

InChI:InChI=1/C16H36N.BH5/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H5/q+1;-1