78176-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78176-13-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,7 and 6 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 78176-13:
(7*7)+(6*8)+(5*1)+(4*7)+(3*6)+(2*1)+(1*3)=153
153 % 10 = 3
So 78176-13-3 is a valid CAS Registry Number.
78176-13-3Relevant articles and documents
DICHLOROMETHYLENATION OF ESTERS AND LACTONES BY TRIPHENYLPHOSPHINE-CARBON TETRACHLORIDE REAGENT.
Suda, Minoru,Fukushima, Asako
, p. 759 - 762 (1981)
Reaction of triphenylphosphine-carbon tetrachloride reagent with esters and lactones produced 1-substituated 2,2-dichlorovinyl ethers.Hydrolysis of these ethers in acidic conditions afforded the dichloromethyl ketones.