216585-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216585-44-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,5,8 and 5 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 216585-44:
(8*2)+(7*1)+(6*6)+(5*5)+(4*8)+(3*5)+(2*4)+(1*4)=143
143 % 10 = 3
So 216585-44-3 is a valid CAS Registry Number.