77-66-7 Usage
Originator
Acetylcarbromal ,Pfaltz and Bauer
Manufacturing Process
It was mixed 120 parts of urea and 258 parts of bromodiethylacetylbromide
(prepared from diethylacetic acid anhydride and bromine). After 12 hours the
mixture was heated for 3 hours at 100°C. The product was mixed with an
aqueous solution of sodium bicarbonate and then was filtered. The obtained
bromodiethylacetylurea was crystallized from diluted ethanol; melting point
114-118°C. The mixture of 474 parts of bromodiethylacetylurea, 1000 parts of
acetic anhydride and 75 parts ZnCl2 was heated at 60°C for 1 hour. The
product was stirred with 3000 parts of ice-water and then 1-acetyl-3-(α-
bromo-α-ethylbutyryl)urea was filtered; melting point 108-109°C.
Therapeutic Function
Sedative, Hypnotic
Check Digit Verification of cas no
The CAS Registry Mumber 77-66-7 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 7 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77-66:
(4*7)+(3*7)+(2*6)+(1*6)=67
67 % 10 = 7
So 77-66-7 is a valid CAS Registry Number.
InChI:InChI=1/C9H15BrN2O3/c1-4-9(10,5-2)7(14)12-8(15)11-6(3)13/h4-5H2,1-3H3,(H2,11,12,13,14,15)
