136603-79-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136603-79-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,6,0 and 3 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 136603-79:
(8*1)+(7*3)+(6*6)+(5*6)+(4*0)+(3*3)+(2*7)+(1*9)=127
127 % 10 = 7
So 136603-79-7 is a valid CAS Registry Number.
136603-79-7Relevant academic research and scientific papers
SYNTHESIS OF 2-ALKENYL-4H-ANTHRAPYRAN-4,7,12-TRIONES
Mzhel'skaya, M. A.,Moroz, A. A.,Shvartsberg, M. S.
, p. 1468 - 1472 (2007/10/02)
A method has been developed for the synthesis of 2-alkenylanthrapyran-4,7,12-triones by the addition of piperidine at the triple bond of 2-alkeynoyl-1-hydroxyanthraquinones with subsequent cyclization of the adducts formed on silica gel.
