P-chloranil

Description

P-chloranil · CAS 118-75-2 · C6Cl4O2. UNII 01W5X7N5XV. Melting Point: 292 °C (SEALED TUBE); Melting Point: 290 °C; Density: 1.97.

Identification

CAS Registry Number	118-75-2
PubChem CID	8371
Molecular formula	C6Cl4O2
IUPAC name	2,3,5,6-tetrachlorocyclohexa-2,5-diene-1,4-dione
UNII (FDA)	01W5X7N5XV

Computed Descriptors

Molecular Weight	245.9
XLogP3	3.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	0
Exact Mass	245.862290
Monoisotopic Mass	243.865240
Topological Polar Surface Area	34.1
Heavy Atom Count	12
Formal Charge	0

Physical & Chemical Properties

Melting Point	292 °C (SEALED TUBE)
Melting Point	290 °C
Density	1.97
Vapor Pressure	0.0000051 [mmHg]
Vapor Pressure	5.1X10-6 MM HG @ 25 °C
LogP	3-4.9
LogP	2.19

Physical description & handling notes

• Chloranil is a yellow powder with a slight odor. (NTP, 1992)
• Dry Powder
• Golden yellow solid; [Merck Index] Yellow or green powder; [MSDSonline]
• YELLOW SOLID IN VARIOUS FORMS.
• GOLDEN-YELLOW PLATELETS FROM ACETIC ACID OR ACETONE; MONOCLINIC PRISMS FROM BENZENE OR TOLUENE OR BY SUBLIMATION IN VACUO
• YELLOW LEAFLETS OR PRISMS

Regulatory Status

Regulatory & Food Contact	FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS

GHS Hazard Classification

Reported hazard statements	H315, H319, H400, H410, H317 (65.2%), H332 (39.4%), H318, H335

Documented Uses

• Used as a dye intermediate, oxidizing agent, vulcanizing agent, dehydrogenation reagent, and veterinary topical medication; Also used as a fungicide in seed treatment and foliar application and to make chloranil electrodes for pH measurements; [HSDB]
• IN MFR OF CHLORANIL ELECTRODES FOR PH MEASUREMENTS; TO MFR CMPD USED IN DYE INDUSTRY; AS REAGENT FOR PAMAQUINE (PLASMOCHIN) IN URINE (BLUE COLOR). FUNGICIDE
• ON MOIST ECZEMAS OF DOGS & IN FLEA POWDERS
• FUNGICIDE IN SEED TREATMENT; FOLIAR APPLICATION
• For more Uses (Complete) data for CHLORANIL (10 total), please visit the HSDB record page.
• REACTION OF CYCLOHEXANE AND HYDROGEN CHLORIDE MIXED WITH OXYGEN, PASSED OVER AN OXIDATION CATALYST

Synonyms

Chloranil; 118-75-2; p-Chloranil; Tetrachloro-1,4-benzoquinone; Tetrachloro-p-benzoquinone; Spergon; Vulklor; Tetrachlorobenzoquinone; Reranil; Tetrachloroquinone; Coversan; 2,3,5,6-TETRACHLORO-1,4-BENZOQUINONE; Spergon technical; Tetrachloro-p-quinone; Khloranil; Psorisan

Frequently Asked Questions

What are the CAS number and molecular formula of P-chloranil?

CAS 118-75-2; molecular formula C6Cl4O2; molecular weight — g/mol.

What other names is P-chloranil known by?

Chloranil, 118-75-2, p-Chloranil, Tetrachloro-1,4-benzoquinone, Tetrachloro-p-benzoquinone, Spergon.

What is the regulatory status of P-chloranil?

Documented regulatory listings: FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS.

Is P-chloranil classified as hazardous?

Hazard statements reported: H315, H319, H400, H410, H317.

What are the key physical properties of P-chloranil?

Melting Point: 292 °C (SEALED TUBE); Melting Point: 290 °C; Density: 1.97; Vapor Pressure: 0.0000051 [mmHg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.