17238-46-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17238-46-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,2,3 and 8 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17238-46:
(7*1)+(6*7)+(5*2)+(4*3)+(3*8)+(2*4)+(1*6)=109
109 % 10 = 9
So 17238-46-9 is a valid CAS Registry Number.