[2-hydroxy-3-(m-tolyloxy)propyl]isopropylammonium chloride Property

Melting point:

120-121°

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P322Specific measures (see …on this label).

P330Rinse mouth.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

[2-hydroxy-3-(m-tolyloxy)propyl]isopropylammonium chloride Chemical Properties,Usage,Production

Originator

Doberol,Boehringer, Ing.

Manufacturing Process

59 g (1 mol) of isopropylamine in 60 ml of water are added to a solution of 82 g (0.5 mol) of 3-(3'-methylphenoxy)propylene oxide (prepared from 3-methyl phenol and epichlorohydrin) in 400 ml of ethanol. After the exothermic reaction has subsided, the mixture is heated for 2 hours at 60°C. After distillation of the volatile components, the free base remains as a solid residue. It is dissolved in hydrochloric acid the acid solution is extracted with ether and then made alkaline with caustic soda solution. The base crystallizes out and is dried over P2O5; 101.9 g (91.3% of theory) of 1-(isopropylamino)- 3-(m-tolyloxy)-2-propanol being obtained; it is recrystallized from ethyl acetate/petroleum ether, and then has MP: 75-76°C. Upon addition of ethereal hydrogen chloride to an alcoholic solution of the base, the hydrochloride precipitates, and after recrystallization from alcohol/ether, has MP: 120- 121°C.

Therapeutic Function

Beta-adrenergic blocker