438217-07-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 438217-07-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,8,2,1 and 7 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 438217-07:
(8*4)+(7*3)+(6*8)+(5*2)+(4*1)+(3*7)+(2*0)+(1*7)=143
143 % 10 = 3
So 438217-07-3 is a valid CAS Registry Number.