769971-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 769971-98-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,6,9,9,7 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 769971-98:
(8*7)+(7*6)+(6*9)+(5*9)+(4*7)+(3*1)+(2*9)+(1*8)=254
254 % 10 = 4
So 769971-98-4 is a valid CAS Registry Number.