TRIMETHOBENZAMIDE HYDROCHLORIDE Property

Melting point:

187.5-190°

storage temp. 

under inert gas (nitrogen or Argon) at 2-8°C

solubility 

DMSO (Slightly), Methanol (Slightly), Water (Slightly)

form 

Solid

color 

White to Off-White

Safety

WGK Germany 

3

HS Code 

2924296000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H317May cause an allergic skin reaction

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements

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

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

P284Wear respiratory protection.

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

P342+P311IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician.

TRIMETHOBENZAMIDE HYDROCHLORIDE Chemical Properties,Usage,Production

Originator

Tigan,Beecham,US,1973

Uses

antiemetic

Uses

Trimethobenzamide Hydrochloride a pharmaceutical compound used in the prevention of nausea and vomiting in patients. Also used in the treatment of Parkinson’s disease.

Manufacturing Process

To 122 grams (1 mol) of p-hydroxybenzaldehyde in 1 liter of chlorobenzene were added 66 grams (1.04 mols) of sodium methoxide (85%) and 108 grams (1 mol) of 2-dimethylaminoethyl chloride. The mixture was stirred and refluxed for 15 hours, then cooled and the precipitated sodium chloride filtered off. The filtrate was concentrated at steam temperature under water vacuum and the residual oil was fractionated in high vacuum, to give 4-(2- dimethylaminoethoxy)benzaldehyde, BP2.2145°C.
Two teaspoons of Raney nickel catalyst were added to a solution of 65.6 grams (0.34 mol) of 4-(2-dimethylaminoethoxy)benzaldehyde in 300 ml of 10% ammoniacal ethanol. The mixture was hydrogenated at 80°C and a pressure of 1,000 psi. The catalyst was filtered off, the volatiles were distilled off and the residual oil was fractionated in high vacuum, to obtain 4-(2- dimethylaminoethoxy)benzylamine, BP0.3120° to 123°C.
To 9.7 grams (0.05 mol) of 4-(2-dimethylaminoethoxy)benzylamine, dissolved in 100 ml of acetonitrile, was added all at once 12 grams (0.051 mol) of 3,4,5-trimethoxybenzoyl chloride, dissolved in 75 ml of acetonitrile. The mixture was stirred and refluxed for 8 hours, and then cooled. The crystalline solid, which had formed, was filtered off, washed with acetonitrile and recrystallized from acetonitrile, to give 4-(2-dimethylaminoethoxy)-N-(3,4,5- trimethoxybenzoyl)benzylamine hydrochloride, MP 185° to 186°C.

brand name

Tigan (King).

Therapeutic Function

Antinauseant