1142209-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1142209-74-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,2,2,0 and 9 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1142209-74:
(9*1)+(8*1)+(7*4)+(6*2)+(5*2)+(4*0)+(3*9)+(2*7)+(1*4)=112
112 % 10 = 2
So 1142209-74-2 is a valid CAS Registry Number.