1816940-00-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1816940-00-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,1,6,9,4 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1816940-00:
(9*1)+(8*8)+(7*1)+(6*6)+(5*9)+(4*4)+(3*0)+(2*0)+(1*0)=177
177 % 10 = 7
So 1816940-00-7 is a valid CAS Registry Number.