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Benzene series intermediates

Benzene, an organic compound, is the simplest aromatic hydrocarbon with a chemical formula of C6H6. At room temperature, it is a sweet, flammable, colorless and transparent liquid with carcinogenic toxicity and a strong aromatic odor. It is insoluble in water, easily soluble in organic solvents, and can also be used as an organic solvent itself. The ring system of benzene is called benzene ring, and the structure after removing a hydrogen atom from the benzene ring is called phenyl, which is represented by Ph, so the chemical formula of benzene can also be written as PhH. Benzene is a basic petrochemical raw material, and its output and production technology are one of the symbols of a country's petrochemical development level. 

On October 27, 2017, the list of carcinogens published by the World Health Organization's International Agency for Research on Cancer was preliminarily sorted out for reference, and benzene was included in the list of Class I carcinogens. 

Foreign name: Benzene, benzol, benzeen 

Alias: Rest oil 

Chemical formula: C6H6 

Molecular weight: 78.11 

CAS login number: 71-43-2 

EINECS accession number: 200-753-7 

Melting point: 5.5℃ 

Boiling point: 80.1℃ 

Water soluble: insoluble 

Density: 0.88 g/cm³ 

Flash point: -11℃ 

Application: Used as spices, dyes, plastics, medicines, explosives, rubber, etc. 

Security description: S36/37; S45; S53 

Hazard description: R11; R36/38; R45; R46; R48/23/24/25; R65 

UN Dangerous Goods Number: 1114/1115 

The benzene ring is the structure of the benzene molecule. It is a plane regular hexagon, each vertex is a carbon atom, and each carbon atom is combined with a hydrogen atom. The carbon-carbon bond in the benzene ring is a unique bond between single and double bonds, with a bond angle of 120° and a bond length of 1.40Å 

Benzene Series Intermediates,2 4 6-Trimethylbenzaldeliyde,4-Iodo-3-Nitrobenzoic Acid Methyl Ester,4-Iodo-3-Nitrobenzoic Acid

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