6980-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6980-27-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,8 and 0 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 6980-27:
(6*6)+(5*9)+(4*8)+(3*0)+(2*2)+(1*7)=124
124 % 10 = 4
So 6980-27-4 is a valid CAS Registry Number.