70557-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70557-59-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,5,5 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70557-59:
(7*7)+(6*0)+(5*5)+(4*5)+(3*7)+(2*5)+(1*9)=134
134 % 10 = 4
So 70557-59-4 is a valid CAS Registry Number.