1680-82-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1680-82-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,8 and 0 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1680-82:
(6*1)+(5*6)+(4*8)+(3*0)+(2*8)+(1*2)=86
86 % 10 = 6
So 1680-82-6 is a valid CAS Registry Number.