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HomeProduct name listValethamate bromide

Valethamate bromide

  • CAS NO.:90-22-2
  • Empirical Formula: C19H32BrNO2
  • Molecular Weight: 386.37
  • MDL number: MFCD00031617
  • EINECS: 201-977-8
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-05 21:24:55
Valethamate bromide Structural

What is Valethamate bromide?

Originator

Murel,Ayerst,US

Definition

ChEBI: Valethamate bromide is an alkylbenzene.

Manufacturing Process

Benzyl cyanide is first reacted with 2-butylbromide in the presence of sodium amide to give 2-phenyl-3-methylvaleronitrile which is hydrolyzed by sulfuric acid to give 3-methyl-2-phenylpentanoic acid. 24 g of 2-phenyl-3- methylpentanoic acid are heated for one hour at 175° to 185°C with 30 g of 2-diethylaminoethanol and 0.5 g of sodium methylate. The excess diethylaminoethanol is removed in vacuo, the residue is dissolved in 300 cc of 2 N-acetic acid, the acid solution is shaken with ether and made alkaline with concentrated potassium carbonate solution and ice. The ether solution is washed with water, dried with sodium sulfate and evaporated. The residue is distilled under high vacuum, yielding 20 to 21 g of the basic ester (60% of the theoretical) is obtained, the ester boiling at 98° to 100°C at a pressure of 0.03 mm. The hydrochloride of the ester melts at 112°to 113°C and the methobromide at 100° to 101°C.

Therapeutic Function

Anticholinergic

Safety Profile

Poison by ingestion, subcutaneous, and intravenous routes. See also ESTERS and BROMIDES. When heated to decomposition it emits very toxic fumes of NOx, NH3, and Br-.

Properties of Valethamate bromide

Melting point: 120-127℃
RTECS  BP7600000
storage temp.  Inert atmosphere,Room Temperature
Water Solubility  almost transparency in Water
solubility  DMSO : 100 mg/mL (258.82 mM; Need ultrasonic)
form  Powder
color  White to Almost white
Merck  14,9906
CAS DataBase Reference 90-22-2(CAS DataBase Reference)

Safety information for Valethamate bromide

Signal word Warning
Pictogram(s)
ghs
Exclamation Mark
Irritant
GHS07
GHS Hazard Statements H302:Acute toxicity,oral
H315:Skin corrosion/irritation
H319:Serious eye damage/eye irritation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
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. Continuerinsing.
P405:Store locked up.

Computed Descriptors for Valethamate bromide

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