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Name	Diiodoquinone	EINECS	N/A
CAS No.	20389-01-9	Density	2.76g/cm³
PSA	34.14000	LogP	1.77600
Solubility	N/A	Melting Point	177.5°C
Formula	C6H2 I2 O2	Boiling Point	312.8°Cat760mmHg
Molecular Weight	359.89	Flash Point	143°C
Transport Information	N/A	Appearance	N/A
Safety	Poison by intraperitoneal route. When heated to decomposition it emits toxic fumes of I⁻.	Risk Codes	R20/22; R36/37/38
Molecular Structure		Hazard Symbols	R20/22:Harmful by inhalation and if swallowed.; R36/37/38:Irritating to eyes, respiratory system and skin.;
Synonyms	Quinone,2,6-diiodo- (3CI); p-Benzoquinone, 2,6-diiodo- (6CI,7CI,8CI);2,6-Diiodo-1,4-benzoquinone; 2,6-Diiodo-p-benzoquinone; 2,6-Diiodoquinone	Article Data	17

Diiodoquinone Chemical Properties

IUPAC Name: 2,6-Diiodocyclohexa-2,5-diene-1,4-dione
Synonyms of Diiodoquinone (CAS NO.20389-01-9): 2,6-Diiodoquinone ; 3-07-00-03385 (Beilstein Handbook Reference) ; BRN 1938943 ; EINECS 243-779-4 ; 2,5-Cyclohexadiene-1,4-dione, 2,6-diiodo- ; 2,6-Diiodo-p-benzoquinone ; p-Benzoquinone, 2,6-diiodo-
CAS NO: 20389-01-9
Molecular Formula of Diiodoquinone (CAS NO.20389-01-9): C₆H₂I₂O₂
Molecular Weight: 359.8878
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 34.14 Å²
Index of Refraction: 1.754
Molar Refractivity: 53.23 cm³
Molar Volume: 130 cm³
Surface Tension: 65.6 dyne/cm
Density of Diiodoquinone (CAS NO.20389-01-9): 2.76 g/cm³
Flash Point: 143 °C
Enthalpy of Vaporization: 55.38 kJ/mol
Boiling Point: 312.8 °C at 760 mmHg
Vapour Pressure: 0.000517 mmHg at 25°C
Molecular Structure:

Diiodoquinone Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LD50	intraperitoneal	84mg/kg (84mg/kg)	PERIPHERAL NERVE AND SENSATION: SPASTIC PARALYSIS WITH OR WITHOUT SENSORY CHANGE BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) LUNGS, THORAX, OR RESPIRATION: CYANOSIS	Biochemical Pharmacology. Vol. 12, Pg. 885, 1963.

Diiodoquinone Consensus Reports

Reported in EPA TSCA Inventory.

Diiodoquinone Safety Profile

Poison by intraperitoneal route. When heated to decomposition it emits toxic fumes of I⁻.

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