90972-67-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90972-67-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,9,7 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90972-67:
(7*9)+(6*0)+(5*9)+(4*7)+(3*2)+(2*6)+(1*7)=161
161 % 10 = 1
So 90972-67-1 is a valid CAS Registry Number.