163973-98-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163973-98-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,9,7 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 163973-98:
(8*1)+(7*6)+(6*3)+(5*9)+(4*7)+(3*3)+(2*9)+(1*8)=176
176 % 10 = 6
So 163973-98-6 is a valid CAS Registry Number.