133692-98-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133692-98-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,9 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133692-98:
(8*1)+(7*3)+(6*3)+(5*6)+(4*9)+(3*2)+(2*9)+(1*8)=145
145 % 10 = 5
So 133692-98-5 is a valid CAS Registry Number.
133692-98-5Relevant articles and documents
THE REACTIONS OF DIFLUORO AND DIBROMOKETENES WITH SILYLATED KETENE ACETALS
Saidi, Kazem,Habibi, M. Hossein
, p. 217 - 222 (2007/10/02)
The in situ generation of difluoro- or dibromoketene from the corresponding acetyl chlorides and activated zinc in the presence of O-silylated ketene acetals at 45-50 deg C temperature resulted in the formation of acyclic esters.All the results are consis
