524042-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 524042-81-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,4,0,4 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 524042-81:
(8*5)+(7*2)+(6*4)+(5*0)+(4*4)+(3*2)+(2*8)+(1*1)=117
117 % 10 = 7
So 524042-81-7 is a valid CAS Registry Number.