42367-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42367-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,3,6 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 42367-81:
(7*4)+(6*2)+(5*3)+(4*6)+(3*7)+(2*8)+(1*1)=117
117 % 10 = 7
So 42367-81-7 is a valid CAS Registry Number.