161644-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161644-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,6,4 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 161644-57:
(8*1)+(7*6)+(6*1)+(5*6)+(4*4)+(3*4)+(2*5)+(1*7)=131
131 % 10 = 1
So 161644-57-1 is a valid CAS Registry Number.
161644-57-1Relevant academic research and scientific papers
Studies in the synthesis of furocoumarins: Part 37 - Synthesis of benzofurocoumestans and difurocoumestan
Soman, Shubhangi S.,Trivedi, K. N.
, p. 1075 - 1079 (2007/10/02)
2,3-Dimethoxydibenzofurobenzopyran-5(H)-one (5) and its 7-methyl derivative have been synthesised from 2 and 7 respectively by Wanzlick's oxidation method followed by methylation and dehydrogenation.Dibenzofurobenzopyran-5(H)-
