Tetramethylammonium borohydride

H261 In contact with water releases flammable gas; H301 Toxic if swallowed; H312 Harmful in contact with skin; H315 Causes skin irritation; H319 Causes serious eye irritation; H332 Harmful if inhaled; H335 May cause respiratory irritation.

P231+P232 Handle under inert gas. Protect from moisture; P261 Avoid breathing dust/fume/gas/mist/vapors/spray; P280 Wear protective gloves/protective clothing/eye protection/face protection; P301+P310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician; P302+P352 IF ON SKIN: wash with plenty of soap and water; P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing; P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing; P332+P313 IF SKIN irritation occurs: Get medical advice/attention; P402+P404 Store in a dry place. Store in a closed container.