119021-01-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 119021-01-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,0,2 and 1 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 119021-01:
(8*1)+(7*1)+(6*9)+(5*0)+(4*2)+(3*1)+(2*0)+(1*1)=81
81 % 10 = 1
So 119021-01-1 is a valid CAS Registry Number.
119021-01-1Relevant academic research and scientific papers
SYNTHESIS OF 7H-8,9-DIHYDRO-4,8-DIMETHYLPYRANOINDOL-2-ONES
Prasad, D. Vijaya,Darbarwar, Malleshwar
, p. 881 - 888 (2007/10/02)
The synthesis of pyrrolocoumarins viz., 7H-8,9-dihydro-4,8-dimethylpyranoindol-2-ones, a new tricyclic system (5), have been achieved from 7-amino-4-methylcoumarin (1) by tosylation, allylation and neat pyrolysis.A plausible mechanism involving ami
