142981-63-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142981-63-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,8 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 142981-63:
(8*1)+(7*4)+(6*2)+(5*9)+(4*8)+(3*1)+(2*6)+(1*3)=143
143 % 10 = 3
So 142981-63-3 is a valid CAS Registry Number.