442631-97-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 442631-97-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,2,6,3 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 442631-97:
(8*4)+(7*4)+(6*2)+(5*6)+(4*3)+(3*1)+(2*9)+(1*7)=142
142 % 10 = 2
So 442631-97-2 is a valid CAS Registry Number.
442631-97-2Relevant articles and documents
Synthesis of linear and angular anthraquinonoisothiazol-3-ones, their S-oxides, and S,S-dioxides
Kucherov,Zlotin
, p. 1657 - 1662 (2007/10/03)
2-Methyltetrahydroanthra[2,3-d]isothiazole-3,5,10-trione and 2-R-tetrahydroanthra[2,1-d]isothiazole-3,6,11-triones were synthesized by the reactions of 3-chloro-9,10-dioxo-9,10-dihydroanthracene-2-carboxamide and 1-nitro-9,10-dioxo-9,10-dihydroanthracene-
