117665-32-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117665-32-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,6 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117665-32:
(8*1)+(7*1)+(6*7)+(5*6)+(4*6)+(3*5)+(2*3)+(1*2)=134
134 % 10 = 4
So 117665-32-4 is a valid CAS Registry Number.
117665-32-4Relevant articles and documents
Application of Knoevenagel Condensation to 4-Acetamidophenazone Derivatives
El-Kerdawy, M. M.,Farghaly, A. M.,Massoud, M. A.
, p. 1189 - 1191 (2007/10/02)
Ethoxycarbonyl-(Ia)- and cyano-(Ib)-acetamidophenazones have been subjected to Knoevenagel condensation with unsaturated aldehydes and ketones.The products obtained are the corresponding α,β-unsaturated esters or cyanide derivatives (1a-g).Condensation of
