438554-16-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438554-16-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,5,5 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 438554-16:
(8*4)+(7*3)+(6*8)+(5*5)+(4*5)+(3*4)+(2*1)+(1*6)=166
166 % 10 = 6
So 438554-16-6 is a valid CAS Registry Number.