1213166-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1213166-44-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,3,1,6 and 6 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1213166-44:
(9*1)+(8*2)+(7*1)+(6*3)+(5*1)+(4*6)+(3*6)+(2*4)+(1*4)=109
109 % 10 = 9
So 1213166-44-9 is a valid CAS Registry Number.