210645-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210645-71-9 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 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 210645-71:
(8*2)+(7*1)+(6*0)+(5*6)+(4*4)+(3*5)+(2*7)+(1*1)=99
99 % 10 = 9
So 210645-71-9 is a valid CAS Registry Number.