143833-70-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143833-70-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,8,3 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143833-70:
(8*1)+(7*4)+(6*3)+(5*8)+(4*3)+(3*3)+(2*7)+(1*0)=129
129 % 10 = 9
So 143833-70-9 is a valid CAS Registry Number.