142657-62-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142657-62-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,6,5 and 7 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 142657-62:
(8*1)+(7*4)+(6*2)+(5*6)+(4*5)+(3*7)+(2*6)+(1*2)=133
133 % 10 = 3
So 142657-62-3 is a valid CAS Registry Number.