101811-61-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101811-61-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,8,1 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 101811-61:
(8*1)+(7*0)+(6*1)+(5*8)+(4*1)+(3*1)+(2*6)+(1*1)=74
74 % 10 = 4
So 101811-61-4 is a valid CAS Registry Number.