869663-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 869663-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,9,6,6 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 869663-64:
(8*8)+(7*6)+(6*9)+(5*6)+(4*6)+(3*3)+(2*6)+(1*4)=239
239 % 10 = 9
So 869663-64-9 is a valid CAS Registry Number.