1170438-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1170438-42-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,0,4,3 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1170438-42:
(9*1)+(8*1)+(7*7)+(6*0)+(5*4)+(4*3)+(3*8)+(2*4)+(1*2)=132
132 % 10 = 2
So 1170438-42-2 is a valid CAS Registry Number.