253687-41-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 253687-41-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,6,8 and 7 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 253687-41:
(8*2)+(7*5)+(6*3)+(5*6)+(4*8)+(3*7)+(2*4)+(1*1)=161
161 % 10 = 1
So 253687-41-1 is a valid CAS Registry Number.