91776-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91776-91-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,7 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91776-91:
(7*9)+(6*1)+(5*7)+(4*7)+(3*6)+(2*9)+(1*1)=169
169 % 10 = 9
So 91776-91-9 is a valid CAS Registry Number.
91776-91-9Relevant academic research and scientific papers
QUINO-4-CYANINES WITH CARBONYL-CONTAINING SUBSTITUENTS
Tolmachev, A. A.,Sheiko, D. I.,Slominskii, Yu. L.
, p. 767 - 771 (2007/10/02)
6-Carbonyl-substituted lepidines and their quaternary salts were synthesized.Quino-4-cyanines were obtained from them.The introduction of carbonyl-containing substituents substantially deepens the color of the dyes obtained.
