2680-29-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2680-29-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,8 and 0 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2680-29:
(6*2)+(5*6)+(4*8)+(3*0)+(2*2)+(1*9)=87
87 % 10 = 7
So 2680-29-7 is a valid CAS Registry Number.