405238-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 405238-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,2,3 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 405238-67:
(8*4)+(7*0)+(6*5)+(5*2)+(4*3)+(3*8)+(2*6)+(1*7)=127
127 % 10 = 7
So 405238-67-7 is a valid CAS Registry Number.