1613239-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1613239-40-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,2,3 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1613239-40:
(9*1)+(8*6)+(7*1)+(6*3)+(5*2)+(4*3)+(3*9)+(2*4)+(1*0)=139
139 % 10 = 9
So 1613239-40-9 is a valid CAS Registry Number.