91412-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91412-71-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,4,1 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91412-71:
(7*9)+(6*1)+(5*4)+(4*1)+(3*2)+(2*7)+(1*1)=114
114 % 10 = 4
So 91412-71-4 is a valid CAS Registry Number.
91412-71-4Relevant articles and documents
A VINYLSILANE ROUTE TO TRANS-7a-METHYLHYDRIND-4-EN-1,6-DIONE
Denmark, Scott E.,Germanas, Juris P.
, p. 1231 - 1234 (2007/10/02)
A stereoselective synthesis of the title compound is described.The overall yield is 34percent starting with 2-methyl-2-cyclopentenone.The trans ring-fusion stereochemistry is established by a conjugate addition/trapping sequence.