443639-82-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443639-82-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,6,3 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 443639-82:
(8*4)+(7*4)+(6*3)+(5*6)+(4*3)+(3*9)+(2*8)+(1*2)=165
165 % 10 = 5
So 443639-82-5 is a valid CAS Registry Number.