167257-43-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 167257-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,2,5 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 167257-43:
(8*1)+(7*6)+(6*7)+(5*2)+(4*5)+(3*7)+(2*4)+(1*3)=154
154 % 10 = 4
So 167257-43-4 is a valid CAS Registry Number.