1443306-91-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1443306-91-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,3,0 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1443306-91:
(9*1)+(8*4)+(7*4)+(6*3)+(5*3)+(4*0)+(3*6)+(2*9)+(1*1)=139
139 % 10 = 9
So 1443306-91-9 is a valid CAS Registry Number.