210642-59-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210642-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,6,4 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 210642-59:
(8*2)+(7*1)+(6*0)+(5*6)+(4*4)+(3*2)+(2*5)+(1*9)=94
94 % 10 = 4
So 210642-59-4 is a valid CAS Registry Number.