210639-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210639-85-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,6,3 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 210639-85:
(8*2)+(7*1)+(6*0)+(5*6)+(4*3)+(3*9)+(2*8)+(1*5)=113
113 % 10 = 3
So 210639-85-3 is a valid CAS Registry Number.