90110-31-9 Usage
Preparation
Preparation by Fries rearrangement of 2-chloro-1,4-di hydroxyphenyl diacetate with aluminium chloride without solvent at 160° (35%).
Check Digit Verification of cas no
The CAS Registry Mumber 90110-31-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,1 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 90110-31:
(7*9)+(6*0)+(5*1)+(4*1)+(3*0)+(2*3)+(1*1)=79
79 % 10 = 9
So 90110-31-9 is a valid CAS Registry Number.