220398-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220398-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,3,9 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 220398-57:
(8*2)+(7*2)+(6*0)+(5*3)+(4*9)+(3*8)+(2*5)+(1*7)=122
122 % 10 = 2
So 220398-57-2 is a valid CAS Registry Number.
220398-57-2Relevant academic research and scientific papers
Meier, Herbert,Rumpf, Norbert
, p. 9639 - 9642 (1998)
The angular benzobisthietes 3 and 5 could be prepared by synthetic sequences in which the final step was in both cases a twofold dehydration of the corresponding bis(hydroxymethyl)dimercaptobenzenes 10 and 14, respectively. Flash vacuum pyrolysis conditio
