CAS № 75-22-9
EC № 200-850-4
Chemical formula: (CH3)3N:BH3
Mol weight: 72.94
Synonym: Trimethylamine borane, borane-trimethylamine-complex, ТМАB

Physical properties:

White powder or crystals.
Melting point: 93-95 °C.
Boiling point: 171 °C.
Bulk density: 300-350 g/l.
Vapour pressure: 10.3 kPa at 20 °C.
Solubility in water: 13.0 g/l at 20 °C.


  1. Reduction of chloroanhydrides of acids, aldehydes, ketones to corresponding alcohols, Schiff bases to secondary amines, indoles to indolines.
  2. As fogging agent in direct positive emulsions.
  3. In photographic development processes with image inversion for a higher image density.
  4. Hydroboration of olefines.
  5. For elecrtodeposition of coatings.
  6. In production of photocurable compositions for lithographic plates.
  7. As a fuel additive.
  8. For stabilization of alcohols, prepared by oxa-synthesis and containing small amounts of carbonyl or non-saturated compounds.


Appearance White powder or crystals
Purity 98.0 % min
Melting point 93-95 oC