1011881-23-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1011881-23-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,1,8,8 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1011881-23:
(9*1)+(8*0)+(7*1)+(6*1)+(5*8)+(4*8)+(3*1)+(2*2)+(1*3)=104
104 % 10 = 4
So 1011881-23-4 is a valid CAS Registry Number.