50-19-1 Usage
Originator
Listica,Armour,US,1961
Uses
Tranquilizer (minor).
Manufacturing Process
2-Phenyl-2-hydroxy-butyl carbamate was prepared by the following method:
49.81 g of 2-phenyl-1,2-butanediol and 25.01 g of pyridine were dissolved in
500 ml of benzene and cooled to 5°C. 34.01 g of ethyl chloroformate was
added over a period of 36 hour at 4°C to 8°C. The reaction mixture was
warmed to room temperature and stirred for 2 hours and then extracted with
100 cc each of the following:
Water, 15% hydrochloric acid, 10% sodium bicarbonate and finally water. The
solvent was stripped off. The residual oil was mixed with 300 ml of 28%
aqueous ammonia for 1 hour. The ammonia and water were vacuum distilled
at a temperature of 40°C or less. Then 300 cc of carbon tetrachloride was
added and the solution dried with sodium sulfate. The solution was cooled at
0°C and then filtered. The crystals were washed with cold carbon tetrachloride
and vacuum dried. The yield was 57 g of dried product having a melting point
of 55°C to 56.5°C.
Therapeutic Function
Tranquilizer
Check Digit Verification of cas no
The CAS Registry Mumber 50-19-1 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 50-19:
(4*5)+(3*0)+(2*1)+(1*9)=31
31 % 10 = 1
So 50-19-1 is a valid CAS Registry Number.
InChI:InChI=1/C11H15NO3/c1-2-11(14,8-15-10(12)13)9-6-4-3-5-7-9/h3-7,14H,2,8H2,1H3,(H2,12,13)
