100440-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100440-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,4,4 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 100440-89:
(8*1)+(7*0)+(6*0)+(5*4)+(4*4)+(3*0)+(2*8)+(1*9)=69
69 % 10 = 9
So 100440-89-9 is a valid CAS Registry Number.
100440-89-9Relevant 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-