1242983-40-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1242983-40-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,9,8 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1242983-40:
(9*1)+(8*2)+(7*4)+(6*2)+(5*9)+(4*8)+(3*3)+(2*4)+(1*0)=159
159 % 10 = 9
So 1242983-40-9 is a valid CAS Registry Number.