697728-90-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 697728-90-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,7,7,2 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 697728-90:
(8*6)+(7*9)+(6*7)+(5*7)+(4*2)+(3*8)+(2*9)+(1*0)=238
238 % 10 = 8
So 697728-90-8 is a valid CAS Registry Number.