2017555-07-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2017555-07-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 2,0,1,7,5,5 and 5 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 2017555-07:
(9*2)+(8*0)+(7*1)+(6*7)+(5*5)+(4*5)+(3*5)+(2*0)+(1*7)=134
134 % 10 = 4
So 2017555-07-4 is a valid CAS Registry Number.