187149-23-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187149-23-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,1,4 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 187149-23:
(8*1)+(7*8)+(6*7)+(5*1)+(4*4)+(3*9)+(2*2)+(1*3)=161
161 % 10 = 1
So 187149-23-1 is a valid CAS Registry Number.