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Home > Encyclopedia > 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone structure

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone 

structure
  • CAS No:

    84-58-2

  • Formula:

    C8Cl2N2O2

  • Chemical Name:

    2,3-Dichloro-5,6-dicyano-1,4-benzoquinone

  • Synonyms:

    1,4-Cyclohexadiene-1,2-dicarbonitrile,4,5-dichloro-3,6-dioxo-;4,5-Dichloro-3,6-dioxo-1,4-cyclohexadiene-1,2-dicarbonitrile;DDQ (oxidizing agent);2,3-Dichloro-5,6-dicyanoquinone;2,3-Dichloro-5,6-dicyanobenzoquinone;2,3-Dichloro-5,6-dicyano-p-quinone;2,3-Dichloro-5,6-dicyano-p-benzoquinone;4,5-Dichloro-3,6-dioxo-1,2-benzenedicarbonitrile;Dichlorodicyanoquinone;Dichlorodicyanobenzoquinone;2,3-Dicyano-5,6-dichloro-1,4-benzoquinone;5,6-Dicyano-2,3-dichloro-p-benzoquinone;1,2-Dichloro-4,5-dicyano-p-benzoquinone;Dichlorodicyano-p-benzoquinone;2,3-Dicyano-5,6-dichlorobenzoquinone;2,3-Chloro-5,6-dicyanoquinone;2,3-Dichlorodicyano-p-benzoquinone;DDQ;2,3-Dichloro-5,6-cyano-1,4-benzoquinone;Dicyanodichloroquinone;5,6-Dichloro-2,3-dicyano-p-benzoquinone;2,3-Dichloro-5,6-dicyano-1,4-benzoquinone;NSC 401087;Dichloro-5,6-dicyano-1,4-benzoquinone

  • Categories:

    Pharmaceutical Intermediates  >  Bulk Drug Intermediates

Description

yellow to orange powder

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone Basic Attributes

227

227.00

747939

201-542-2

1H5KD39UH7

401087

DTXSID7052577

29269095

Characteristics

81.7

1.6

Yellow to orange Crystalline Powder or Crystals

1.7500 (estimate)

214.5 °C

301.8ºC at 760 mmHg

136.3ºC

1.601

Solubility in water: reaction.;soluble in benzene, methanol, acetic acid and dioxane.Slightly soluble in chloroform,, dichloromethane.

0-6°C

Abdominal-mouse LD50: 31 mg/kg; intravenous-mouse LD50: 13 mg/kg

Open flame is flammable; high heat releases nitrogen oxide and chloride gas

Safety Information

II

6.1

UN 3439 6.1/PG 3

3

25-29-41-37/38-20/21-23/24/25

22-24/25-37-45-36/37-26-36/37/39

GU4825000

T

Storehouse ventilated at low temperature and dry; stored separately from oxidants, food chemical additives, acids

Stable under normal temperatures and pressures.

P264, P270, P301+P310, P321, P330, P405, P501

H301

|Danger|H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]|P261, P264, P270, P272, P280, P301+P310, P302+P352, P305+P351+P338, P321, P330, P333+P313, P337+P313, P363, P405, and P501|Aggregated GHS information provided by 69 companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Toxicity

most toxic

Drug Information

2,3-DDQ

2,3-Dichloro-5,6-dicyano-1,4-benzoquinone Use and Manufacturing

Methods of Manufacturing

Stir 2, 3-dicyanohydroquinone and hydrochloric acid into a slurry, slowly add 70% nitric acid at about 35°C, and continue stirring for 1 hour. Filter, wash with carbon tetrachloride, and dry to obtain DDQ with a yield of 90%.

Uses

An oxidizing agent, especially in steroid synthesis.

1,4-Cyclohexadiene-1,2-dicarbonitrile, 4,5-dichloro-3,6-dioxo-: ACTIVE

Computed Properties

Molecular Weight:227.00
XLogP3:1.6
Hydrogen Bond Acceptor Count:4
Exact Mass:225.9336826
Monoisotopic Mass:225.9336826
Topological Polar Surface Area:81.7
Heavy Atom Count:14
Complexity:464
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

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