135787-53-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 135787-53-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,7,8 and 7 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 135787-53:
(8*1)+(7*3)+(6*5)+(5*7)+(4*8)+(3*7)+(2*5)+(1*3)=160
160 % 10 = 0
So 135787-53-0 is a valid CAS Registry Number.
135787-53-0Relevant articles and documents
Preparation of the 4-carboethoxy-3-trifluoromethylcyclohex-2-enone
Tordeux,Wakselman
, p. 1243 - 1245 (1991)
The 4-carboethoxy-3-trifluoromethylcyclohex-2-enone was prepared in 2 steps from methylvinylketone and ethyl trifluoroacetoacetate.