142039-63-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142039-63-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,0,3 and 9 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 142039-63:
(8*1)+(7*4)+(6*2)+(5*0)+(4*3)+(3*9)+(2*6)+(1*3)=102
102 % 10 = 2
So 142039-63-2 is a valid CAS Registry Number.