Pharmaceutical Materials

CAS Number: 19398-61-9 Molecular Formula: C7H6Cl2 Molecular Weight: 161.03 g/mol Appearance: Colorless to pale yellow liquid Melting Point: 3-5°C Boiling Point: 201.8°C Density: 1.254 g/mL at 20°C Usage: Used as a solvent and an intermediate in organic synthesis.

2,5-dichlorotoluene is an organic compound with the chemical formula C8H6Cl2. The following is a description of its nature, use, preparation and safety information:

Nature:

2,5-dichlorotoluene is a colorless liquid with a special aromatic taste. It has a melting point of 11-12°C and a boiling point of 214-216°C. It can be dissolved in many organic solvents, such as ethanol and acetone. In addition, it has a lower vapor pressure in air.

Use:

The main use of 2,5-dichlorotoluene is as an intermediate in organic synthesis reactions. It can be used to prepare chemicals such as pesticides, dyes, pharmaceuticals and rubber additives. In addition, it can also be used as a solvent, paint thinner and metal surface treatment agent.

Method:

2,5-dichlorotoluene can be prepared by chlorination of toluene. A common method is to use thionyl chloride as a catalyst and carry out the reaction at an appropriate temperature and pressure.

Safety Information:

2,5-dichlorotoluene has certain toxicity and irritation, so it is necessary to take appropriate protective measures during use. Wash immediately when in contact with skin, eyes or respiratory tract, avoid ingestion or inhalation. At the same time, it should be stored in a cool, dry, well-ventilated place, away from fire and oxidants.

Name	2,5-Dichlorotoluene
Synonyms	NSC 86117 1,4-dichloro-2-methylbenzene Toluene, 2,5-dichloro- (8CI) Benzene, 1,4-dichloro-2-methyl-
CAS	19398-61-9
EINECS	243-032-2
InChI	InChI=1/C7H6Cl2/c1-5-4-6(8)2-3-7(5)9/h2-4H,1H3

Molecular Formula	C7H6Cl2
Molar Mass	161.029
Density	1.256
Melting Point	4-5°
Boling Point	198-200°
Flash Point	79.4°C
Vapor Presure	0.533mmHg at 25°C
Appearance	clear liquid
Color	Colorless to Almost colorless
Refractive Index	1.543

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