The Benzene,1,4-diiodo-2,3,5,6-tetramethyl-, with the CAS registry number 3268-21-1, is also known as 3,6-Diiodo-1,2,4,5-tetra-methylbenzene. This chemical's molecular formula is C₁₀H₁₂I₂ and molecular weight is 386.01. What's more, its systematic name is 1,4-diiodo-2,3,5,6-tetramethylbenzene. It is stable at common pressure and temperature, and it should be sealed and stored in a cool, ventilated and dry place. What's more, it should be protected from light.

Physical properties of Benzene,1,4-diiodo-2,3,5,6-tetramethyl- are: (1)ACD/LogP: 5.95; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 5.95; (4)ACD/BCF (pH 5.5): 19599.02; (5)ACD/KOC (pH 5.5): 41111.93; (6)Index of Refraction: 1.637; (7)Molar Refractivity: 71.36 cm³; (8)Molar Volume: 198.6 cm³; (9)Polarizability: 28.29×10^-24cm³; (10)Surface Tension: 43.1 dyne/cm; (11)Density: 1.942 g/cm³; (12)Flash Point: 164 °C; (13)Enthalpy of Vaporization: 56.38 kJ/mol; (14)Boiling Point: 343.2 °C at 760 mmHg; (15)Vapour Pressure: 0.000142 mmHg at 25°C.

Preparation: this chemical can be prepared by 1,2,4,5-tetramethyl-benzene at the temperature of 100 °C. This reaction will need reagents I₂, KMnO₄, H₂SO₄ and solvents acetic acid, H₂O with the reaction time of 4 hours. The yield is about 81%.

Uses of Benzene,1,4-diiodo-2,3,5,6-tetramethyl-: it can be used to produce 1,4-di(trideuteromethyl)-2,3,5,6-tetramethylbenzene. It will need solvents diethyl ether, benzene with the reaction time of 1 hour. The yield is about 79%.

You can still convert the following datas into molecular structure:
(1)SMILES: Ic1c(c(c(I)c(c1C)C)C)C
(2)InChI: InChI=1S/C10H12I2/c1-5-6(2)10(12)8(4)7(3)9(5)11/h1-4H3
(3)InChIKey: YSKCEXICRGEWDI-UHFFFAOYSA-N