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118-75-2 - p-Chloranil, 97% - Tetrachloro-p-benzoquinone - A13495 - Alfa Aesar

A13495 p-Chloranil, 97%

Codice CAS
118-75-2
Sinonimi
Tetrachloro-p-benzoquinone

Dimensioni Prezzo ($) Quantità Disponibilità
25g 30,69
100g 85,18
500g 287,10
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p-Chloranil, 97%

MDL
MFCD00001594
EINECS
204-274-4

Proprietà chimiche

Formula
C6Cl4O2
Peso formula
245.88
Punto di fusione
ca 290° subl.
Densità
1.970
Solubilità
Soluble in ether and acetone. Slightly soluble in chloroform, dimethylformamide, solvent naphtha, benzene, carbon disulfide and carbon tetrachloride. Insoluble in water, cold petroleum ether, methanol, dibutyl phthalate and cold alcohol.

Applicazioni

p-Chloranil is used as a dye intermediate, oxidizing agent, vulcanizing agent and dehydrogenation reagent. It is also used to make chloranil electrodes for pH measurements. Further, it serves as a hydrogen acceptor and used for the aromatization reactions such as conversion of cyclohexadienes to the benzene derivatives. It is used to test the secondary amine. In addition to this, it is employed as a precursor to prepare diaziquone, which is used as a cancer chemotherapeutic agent.

Note

Incompatible with strong oxidizing agents and strong bases.

Letteratura

High potential quinones dehydrogenate many hydroaromatic systems by hydride abstraction.

Reviews: Adv. Org. Chem., 2, 329 (1960); Chem. Rev., 67, 153 (1967); 78, 317 (1978).

Forms complexes with many non-aromatic electron-donors, e.g. carbonyl compounds, esters, amides, lactones, lactams and alkyl iodides: J. Org. Chem., 53, 2163 (1988).

Liu, B.; Li, X.; Stępień, M.; Chmielewski, P. J. Towards Norcorrin: Hydrogenation Chemistry and the Heterodimerization of Nickel(II) Norcorrole. Chem. Eur. J. 2015, 21 (21), 7790-7797.

Paddy, V.; van Tonder, J. J.; Steenkamp, V. In vitro Antioxidant Activity and Polyphenolic Content of a Polyherbal Tea and Its Constituents. European J. Med. Plants 2015, 7 (4), 215-226.

Rischio GHS e dichiarazioni precauzionali

Dichiarazioni di rischio (UE): H400-H410-H315-H319-H303

Very toxic to aquatic life. Very toxic to aquatic life with long lasting effects. Causes skin irritation. Causes serious eye irritation. May be harmful if swallowed.

Dichiarazioni precauzionali: P273-P280-P264-P305+P351+P338-P362-P312-P321-P332+P313-P337+P313-P501a

Avoid release to the environment. Wear protective gloves/protective clothing/eye protection/face protection. Wash thoroughly after handling. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Take off contaminated clothing and wash before reuse. Call a POISON CENTER or doctor/physician if you feel unwell. Specific treatment (see label). If skin irritation occurs: Get medical advice/attention. If eye irritation persists: Dispose of contents/container in accordance with local/regional/national/international regulations.

Altri riferimenti

Merck
14,2078
Beilstein
393006
Classe di rischio
9
Gruppo di imballaggio
III
Codice tariffe armonizzato
2914.70
TSCA
Yes
RTECS
DK6825000

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