172975-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172975-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,9,7 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 172975-98:
(8*1)+(7*7)+(6*2)+(5*9)+(4*7)+(3*5)+(2*9)+(1*8)=183
183 % 10 = 3
So 172975-98-3 is a valid CAS Registry Number.