253790-69-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 253790-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,7,9 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 253790-69:
(8*2)+(7*5)+(6*3)+(5*7)+(4*9)+(3*0)+(2*6)+(1*9)=161
161 % 10 = 1
So 253790-69-1 is a valid CAS Registry Number.