916438-58-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 916438-58-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,6,4,3 and 8 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 916438-58:
(8*9)+(7*1)+(6*6)+(5*4)+(4*3)+(3*8)+(2*5)+(1*8)=189
189 % 10 = 9
So 916438-58-9 is a valid CAS Registry Number.