2,5-Dichloro-3-methylthiophene

The 2,5-Dichloro-3-methylthiophene, with the CAS registry number 17249-90-0, is also known as Thiophene, 2,5-dichloro-3-methyl-. It belongs to the product categories of Thiophene & Benzothiophene; Thiophens; Halogenated Heterocycles; Heterocyclic Building Blocks; Thiophenes; Thiophenes Building Blocks. This chemical's molecular formula is C₅H₄Cl₂S and molecular weight is 167.0563. Its systematic name is called 2,5-dichloro-3-methylthiophene. What's more, the product should be sealed and stored in dry and well-ventilated place.

Physical properties of 2,5-Dichloro-3-methylthiophene: (1)ACD/LogP: 3.66; (2)Index of Refraction: 1.573; (3)Molar Refractivity: 39.25 cm³; (4)Molar Volume: 119 cm³; (5)Surface Tension: 40.1 dyne/cm; (6)Density: 1.402 g/cm³; (7)Flash Point: 82.2 °C; (8)Enthalpy of Vaporization: 40.44 kJ/mol; (9)Boiling Point: 185.5 °C at 760 mmHg; (10)Vapour Pressure: 0.955 mmHg at 25°C.

Preparation of 2,5-Dichloro-3-methylthiophene: this chemical can be prepared by 3-methyl-thiophene. This reaction will need reagent sulfuryl chloride.

Uses of 2,5-Dichloro-3-methylthiophene: it can be used to produce 5,8-dichloro-2,7-dimethyl-[1,4]oxathiocine-3-carboxylic acid ethyl ester with 2-diazo-acetoacetic acid ethyl ester at ambient temperature. This reaction will need catalyst tetrakis(acetato)dirhodium(II) with reaction time of 7 days. The yield is about 72%.

When you are using this chemical, please be cautious about it as the following:
This chemical may cause damage to health. It is harmful if swallowed. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc1sc(Cl)c(c1)C
(2)InChI: InChI=1/C5H4Cl2S/c1-3-2-4(6)8-5(3)7/h2H,1H3
(3)InChIKey: BUWSFDLUTRHPBO-UHFFFAOYAI