Reported in EPA TSCA Inventory.

The IUPAC name of this chemical is 4-anilinophenol. With the CAS registry number 122-37-2 and EINECS 204-538-9, it is also named as 4-Hydroxydiphenylamine. The product's category is Anilines, Aromatic Amines and Nitro Compounds. The common product is reddish brown casting body and the refined products is orange. It is soluble in alcohol, ether, acetone, chloroform and benzene, slightly soluble in water, dilute alkali and inorganic acids. What's more, this chemical can be obtained by the reaction of aniline and paradioxybenzene. When heated to decomposition it emits toxic fumes of NO_x. So the storage environment should be well-ventilated, low-temperature and dry. Keep p-Anilinophenol separate from raw materials of food.

The other characteristics of this product can be summarized as: (1)ACD/LogP: 2.82; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.82; (4)ACD/LogD (pH 7.4): 2.82; (5)ACD/BCF (pH 5.5): 82.3; (6)ACD/BCF (pH 7.4): 82.16; (7)ACD/KOC (pH 5.5): 817.81; (8)ACD/KOC (pH 7.4): 816.4; (9)#H bond acceptors: 2; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 32.26 Å²; (13)Index of Refraction: 1.67; (14)Molar Refractivity: 57.5 cm³; (15)Molar Volume: 153.9 cm³; (16)Surface Tension: 53.1 dyne/cm; (17)Enthalpy of Vaporization: 59.6 kJ/mol; (18)Vapour Pressure: 8.52E-05 mmHg at 25°C; (19)Rotatable Bond Count: 2; (20)Tautomer Count: 4; (21)Exact Mass: 185.084064; (22)MonoIsotopic Mass: 185.084064; (23)Topological Polar Surface Area: 32.3; (24)Heavy Atom Count: 14; (25)Complexity: 158.

Uses of p-Anilinophenol: It is used as intermediate in medicine, dye, pesticide and rubber additives. It also can react with iodoethane to get (4-ethoxy-phenyl)-phenyl-amine. This reaction needs reagent 10percent potassium hydroxyde and solvent ethanol. The yield is 52%.

When you are using this chemical, please be cautious about it as the following:
It is not only harmful if swallowed, but also irritating to respiratory system and skin. And it has risk of serious damage to the eyes. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you want to contact this product, you must wear suitable protective clothing, gloves and eye/face protection.

People can use the following data to convert to the molecule structure. 
1. Smiles:c1(Nc2ccccc2)ccc(O)cc1
2. InChI:InChI=1/C12H11NO/c14-12-8-6-11(7-9-12)13-10-4-2-1-3-5-10/h1-9,13-14H

The following are the toxicity data which has been tested.