69976-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69976-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,7 and 6 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 69976-78:
(7*6)+(6*9)+(5*9)+(4*7)+(3*6)+(2*7)+(1*8)=209
209 % 10 = 9
So 69976-78-9 is a valid CAS Registry Number.