74796-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74796-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,9 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74796-57:
(7*7)+(6*4)+(5*7)+(4*9)+(3*6)+(2*5)+(1*7)=179
179 % 10 = 9
So 74796-57-9 is a valid CAS Registry Number.
74796-57-9Relevant articles and documents
A SIMPLE ROUTE TO Δ2-BUTENOLIDES FROM CONJUGATED ALDEHYDES
Corey, E. J.,Schmidt, Greg
, p. 731 - 734 (2007/10/02)
A variety of Δ2-butenolides may be synthesized by oxidation of the O-trimethylsilylcyanohydrins of α,β-unsaturated aldehydes using pyridinium dichromate in dimethylformamide.