The 2,5-Dimethylterephthalic acid, with CAS registry number 6051-66-7, belongs to the following product categories: (1)Fluorenes, etc. (reagent for high-performance polymer research); (2)Functional Materials; (3)Reagent for High-Performance Polymer Research. It has the systematic name of 4,4'-ethyne-1,2-diyldianiline. And the chemical formula of this chemical is C₁₀H₁₀O₄.

Physical properties of 2,5-Dimethylterephthalic acid: (1)ACD/LogP: 2.92; (2)# of Rule of 5 Violations: 0; (3)ACD/BCF (pH 5.5): 1; (4)ACD/BCF (pH 7.4): 1; (5)ACD/KOC (pH 5.5): 1; (6)ACD/KOC (pH 7.4): 1; (7)#H bond acceptors: 4; (8)#H bond donors: 2; (9)#Freely Rotating Bonds: 2; (10)Polar Surface Area: 52.6 Å²; (11)Index of Refraction: 1.592; (12)Molar Refractivity: 49.76 cm³; (13)Molar Volume: 147 cm³; (14)Polarizability: 19.72×10^-24cm³; (15)Surface Tension: 58.5 dyne/cm; (16)Density: 1.32 g/cm³; (17)Flash Point: 201.9 °C; (18)Enthalpy of Vaporization: 67.06 kJ/mol; (19)Boiling Point: 386.8 °C at 760 mmHg; (20)Vapour Pressure: 1.12E-06 mmHg at 25°C.

Preparation: this chemical can be prepared by 1,2,4,5-tetrahydro-p-xylene-3,6-dicarboxylic acid. This reaction will need reagent 5% Pd/C. The yield is about 93%.

When you are using this chemical, please be cautious about it as the following:
The 2,5-Dimethylterephthalic acid irritates to eyes, respiratory system and skin. When use it, wear suitable protective clothing, gloves and eye/face protection. If contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C(O)c1cc(c(cc1C)C(=O)O)C
(2)InChI: InChI=1/C10H10O4/c1-5-3-8(10(13)14)6(2)4-7(5)9(11)12/h3-4H,1-2H3,(H,11,12)(H,13,14)
(3)InChIKey: FKUJGZJNDUGCFU-UHFFFAOYAQ
(4)Std. InChI: InChI=1S/C10H10O4/c1-5-3-8(10(13)14)6(2)4-7(5)9(11)12/h3-4H,1-2H3,(H,11,12)(H,13,14)
(5)Std. InChIKey: FKUJGZJNDUGCFU-UHFFFAOYSA-N