21585-70-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21585-70-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,5,8 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21585-70:
(7*2)+(6*1)+(5*5)+(4*8)+(3*5)+(2*7)+(1*0)=106
106 % 10 = 6
So 21585-70-6 is a valid CAS Registry Number.