1239972-76-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239972-76-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,9,7 and 2 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1239972-76:
(9*1)+(8*2)+(7*3)+(6*9)+(5*9)+(4*7)+(3*2)+(2*7)+(1*6)=199
199 % 10 = 9
So 1239972-76-9 is a valid CAS Registry Number.