77555-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77555-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,5 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77555-16:
(7*7)+(6*7)+(5*5)+(4*5)+(3*5)+(2*1)+(1*6)=159
159 % 10 = 9
So 77555-16-9 is a valid CAS Registry Number.
77555-16-9Relevant articles and documents
CYCLOHEXYLATION OF N-ETHYL-2-PYRIDONE IN THE PRESENCE OF ALUMINIUM CHLORIDE
Saidova, F. M.,Binchkauskas, V. Sh.,Khorev, S. G.,Enikeev, E. Ya.
, p. 353 - 357 (2007/10/02)
The possibility of direct alkylation of N-ethyl-2-pyridone under Friedel-Crafts conditions was demonstrated.The reaction of N-ethyl-2-pyridone with cyclohexyl chloride in the presence of aluminium chloride took place at positions 3 and 5.
