443917-67-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 443917-67-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,3,9,1 and 7 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 443917-67:
(8*4)+(7*4)+(6*3)+(5*9)+(4*1)+(3*7)+(2*6)+(1*7)=167
167 % 10 = 7
So 443917-67-7 is a valid CAS Registry Number.