77764-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77764-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,7,6 and 4 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77764-49:
(7*7)+(6*7)+(5*7)+(4*6)+(3*4)+(2*4)+(1*9)=179
179 % 10 = 9
So 77764-49-9 is a valid CAS Registry Number.
77764-49-9Relevant academic research and scientific papers
A MILD, RAPID, AND CONVENIENT ESTERIFICATION OF α-KETO ACIDS
Domagala, John M.
, p. 4997 - 5000 (2007/10/02)
A new method for the esterification of α-keto acids with alkyl chloroformates is described, which is compatible with many functional groups.
