253784-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 253784-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,7,8 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 253784-71:
(8*2)+(7*5)+(6*3)+(5*7)+(4*8)+(3*4)+(2*7)+(1*1)=163
163 % 10 = 3
So 253784-71-3 is a valid CAS Registry Number.