212070-51-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 212070-51-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,2,0,7 and 0 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 212070-51:
(8*2)+(7*1)+(6*2)+(5*0)+(4*7)+(3*0)+(2*5)+(1*1)=74
74 % 10 = 4
So 212070-51-4 is a valid CAS Registry Number.