91664-11-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91664-11-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,6 and 4 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91664-11:
(7*9)+(6*1)+(5*6)+(4*6)+(3*4)+(2*1)+(1*1)=138
138 % 10 = 8
So 91664-11-8 is a valid CAS Registry Number.
91664-11-8Relevant articles and documents
ZINC (0) MEDIATED REGIO AND STEREOSELECTIVE COUPLING OF SUBSTITUTED BROMOCROTONATES
Orsini, F.,Pelizzoni, F.
, p. 169 - 178 (2007/10/02)
A useful synthetic approach to 5-carbomethoxy-hepta-2,6-dienoates is reported, formally via Michael reaction with inverse electron demand.