70021-47-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70021-47-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,0,2 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70021-47:
(7*7)+(6*0)+(5*0)+(4*2)+(3*1)+(2*4)+(1*7)=75
75 % 10 = 5
So 70021-47-5 is a valid CAS Registry Number.