1283159-42-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1283159-42-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,3,1,5 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1283159-42:
(9*1)+(8*2)+(7*8)+(6*3)+(5*1)+(4*5)+(3*9)+(2*4)+(1*2)=161
161 % 10 = 1
So 1283159-42-1 is a valid CAS Registry Number.