77149-46-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77149-46-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,1,4 and 9 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77149-46:
(7*7)+(6*7)+(5*1)+(4*4)+(3*9)+(2*4)+(1*6)=153
153 % 10 = 3
So 77149-46-3 is a valid CAS Registry Number.
77149-46-3Relevant academic research and scientific papers
PREPARATION OF α-ETHYLENIC KETENE DITHIOACETALS FROM α-OXOKETENE DITHIOACETALS.
Masson, Serge,Thuillier, Andre
, p. 4085 - 4086 (2007/10/02)
1,1-bis(methylthio)-1,3-dienes and 1,1-bis(methylthio)-3-trimethylsilyl-oxy-1,3-dienes were respectively prepared by Wittig olefination and by enol-silylation of α-oxoketene dithioacetals.
