Dimethylamine borane

CAS: 74-94-2

Overview

Dimethylamine borane ( CAS 74-94-2 ), commonly abbreviated as DMAB, is a stable borane complex used industrially as a selective reducing agent and electroless plating initiator.

Its controlled reactivity makes it a preferred alternative to sodium borohydride in processes requiring milder, more manageable reduction conditions for industrial chemical synthesis.

In electroless nickel and cobalt plating, DMAB functions as the reducing agent that drives metal deposition onto non-conductive substrates, including plastics and printed circuit boards.

The electronics industry relies on it for metallization steps where precise deposit quality and bath stability are critical procurement considerations for high-end manufacturing.

Pharmaceutical and fine chemical manufacturers use DMAB for reductive amination and selective carbonyl reduction where sodium borohydride would be too aggressive for the solvent system.

It also appears in specialty polymer and adhesive formulations as a curing initiator. DMAB is supplied as a white crystalline solid, typically in powder or granule form.

Material is packaged under inert conditions to preserve stability during storage and transit. Technical grade is the standard commercial offering for most industrial applications.

High-purity grades are available for pharmaceutical synthesis and electronics. Bulk quantities are available in multi-kilogram drums for laboratory and development-scale procurement.

Physical Properties

Melting Point	37 °C
Boiling Point	63 °C @ Press: 1 Torr
Density	0,69 g/cm 3
Flash Point	110 °F
Appearance	white crystalline powder with an amine odour
Color	White to yellow
Form	Flakes or Granules
Water Solubility	125 g/L (20 ºC)
Vapor Pressure	<5 hPa (20 °C)
pH	8-9 (10g/l, H2O, 20℃)

Safety & Handling

Danger GHS02 GHS05 GHS06 GHS07 GHS09 Hazard Statements H228 Flammable solid H301 Toxic if swallowed H311 Toxic in contact with skin H317 May cause an allergic skin reaction H318 Causes serious eye damage H319 Causes serious eye irritation H331 Toxic if inhaled H332 Harmful if inhaled H411 Toxic to aquatic life with long lasting effects H412 Harmful to aquatic life with long lasting effects H301+H311 Toxic if swallowed or in contact with skin Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P240 Ground and bond container and receiving equipment. P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P262 Do not get in eyes, on skin, or on clothing. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P272 Contaminated work clothing should not be allowed out of the workplace. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P317 Get emergency medical help. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P316 Get emergency medical help immediately. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P333+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P361+P364 Take off immediately all contaminated clothing and wash it before reuse. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code	29420000
UN Number	2926
ADR Class	4.1
Packing Group	II
WGK (Germany)	2

Other Names

Industries

Food & Nutrition