677021-11-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 677021-11-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,7,7,0,2 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 677021-11:
(8*6)+(7*7)+(6*7)+(5*0)+(4*2)+(3*1)+(2*1)+(1*1)=153
153 % 10 = 3
So 677021-11-3 is a valid CAS Registry Number.