p-CHLORANIL

PRODUCT IDENTIFICATION

CAS NO.

118-75-2

CHLORANIL

EINECS NO. 204-274-4
FORMULA C6Cl4(=O)2
MOL WT. 245.88
H.S. CODE

2914.70

TOXICITY Oral rat LD50: 4000 mg/kg
SYNONYMS Chloranil; Khloranil;

2,3,5,6-tetrachloro-p-Benzoquinone; 2,3,5,6-tetrachloro-1,4-Benzoquinone; 2,3,5,6-Tetrachloro-2,5-cyclohexadiene-1,4-dione; Tetrachloroquinone; 2,3,5,6-tetrachloro-p-Benzoquinone; 2,3,5,6-Tetrachloro-p-benzoquinone; Chloranile; Quinone Tetrachloride; Tetrachloro-p-benzoquinone; Tetrachloro-p-quinone; Tetrachlorobenzoquinone;

SMILES

phenol with potassium chloride and hydrochloric acid

CLASSIFICATION

DISINFECTANTS

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE yellow to greenish crystalline powder
MELTING POINT 291 C
BOILING POINT Sublimes
SPECIFIC GRAVITY 1.97
SOLUBILITY IN WATER Insoluble
pH  
VAPOR DENSITY  

AUTOIGNITION

> 400 C

NFPA RATINGS

 

REFRACTIVE INDEX

 

FLASH POINT  
STABILITY Stable under ordinary conditions

APPLICATIONS

Chloranil is used as a fungicide. It is used as an oxidizing agent in the organic synthesis especially for dye intermediates and vulcanization agent.

Benzoquinone is used as an oxidizing agent in organic synthesis. Some substituted benzoquinones are stronger reagents e.g o-chloranil, p-chloranilexist (tetrachlorobenzoquinone), and DDQ (2,3-dicyano-5,6-dichloro-parabenzoquinone). They are used as reagents for the oxidation (including oxidative coupling and cyclization reaction) and dehydrogenation of hydroaromatic compounds. They are useful in the synthesis of aromatized or lactones formed steroids and modified natural products. Metal dioxide such as selenium dioxide and manganese dioxide are also oxidising agents which convert alcohols into ketones, aromatic methyl groups into aldehyde or carboxylic acids, double bonds into alcohols, aldehydes into carboxylic acids, steroidal ketones into secolactones. But several side reactions are expected due to the lack of selectivity. DDQ and substituted quinones provide regioselective effectiveness for the preparation of target intermediates. Phenylbis(trifluoroacetato-O)iodine and Tritylium tetrafluoroborate are also reagent for the dehydrogenation of hydroaromatic compounds.

Product

CAS RN

2,3-Dichloro-5,6-dicyano-p-benzoquinone

84-58-2

o-Chloranil

2435-53-2

Phenylbis(trifluoroacetato-O)iodine

2712-78-9

p-Chloranil

118-75-2

Tritylium tetrafluoroborate

341-02-6

Selenium dioxide

7446-08-4

Manganese dioxide

1313-13-9 

SALES SPECIFICATION

APPEARANCE

yellow to greenish crystalline powder
PURITY

98.0% min

CHLORINE

56.5% min

ASH

0.5% max

TRANSPORTATION
PACKING 25kgs in bag
HAZARD CLASS 6.1
UN NO. 2588
REMARKS