81997-92-4 Usage
Chemical Properties
Colorless Oil
Check Digit Verification of cas no
The CAS Registry Mumber 81997-92-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,9 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81997-92:
(7*8)+(6*1)+(5*9)+(4*9)+(3*7)+(2*9)+(1*2)=184
184 % 10 = 4
So 81997-92-4 is a valid CAS Registry Number.