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Name	Oxanthrene	EINECS	205-974-2
CAS No.	262-12-4	Density	1.243g/cm³
PSA	18.46000	LogP	3.58460
Solubility	Stability Stable. Combustible. Incompatible with strong oxidizing agents. Toxicology May be harmful or act as an irritant - toxicology not fully investigated. Toxicity data	Melting Point	120 °C
Formula	C12H8 O2	Boiling Point	278.5°Cat760mmHg
Molecular Weight	184.194	Flash Point	115.7°C
Transport Information	N/A	Appearance	white crystalline solid
Safety	A poison by intraperitoneal route. Moderately toxic by ingestion. Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits acrid smoke and irritating fumes.	Risk Codes	22-51/53
Molecular Structure		Hazard Symbols	Xn,N
Synonyms	Dibenzo-p-dioxin(6CI,7CI,8CI); Dibenzo[1,4]dioxin; Diphenylene dioxide; Oxanthrene; Phenodioxin	Article Data	50

Oxanthrene Synthetic route

: 39227-54-8
2-chlorodibenzo-p-dioxin

: 262-12-4
dioxin

Conditions

Conditions	Yield
With acetophenone In methanol at 20℃; for 0.166667h; Irradiation;	95.7%

: 33857-26-0
2,7-dichloro-dibenzo[1,4]dioxine

: 262-12-4
dioxin

Conditions

Conditions	Yield
With sodium hydroxide; palladium on activated charcoal In isopropyl alcohol at 30℃; for 3h;	94.4%
Multi-step reaction with 2 steps 1: 40.2 percent / acetophenone / methanol / 1 h / 20 °C / Irradiation 2: 95.7 percent / acetophenone / methanol / 0.17 h / 20 °C / Irradiation View Scheme
Multi-step reaction with 2 steps 1: 40.2 percent / acetophenone / methanol / 1 h / 20 °C / Irradiation 2: 11.6 percent / methanol / 0.08 h / 20 °C / Irradiation View Scheme

: η6-dibenzodioxin-η5-cyclopentadienyliron hexafluorophosphate

: 262-12-4
dioxin

Conditions

Conditions	Yield
at 200 - 250℃; under 1 Torr; for 1h;	91%

: 95-56-7
2-hydroxybromobenzene

: 262-12-4
dioxin

Conditions

Conditions	Yield
With potassium carbonate at 120℃; for 12h; Ullmann Condensation;	90%
With pyridine; copper(I) phenylacetylenide 1.) reflux, 5 h, 2.) reflux, 5 h; Yield given. Multistep reaction;

: 39227-53-7
1-chlorodibenzo-p-dioxin

: 262-12-4
dioxin

Conditions

Conditions	Yield
With acetophenone In methanol at 20℃; for 3h; Irradiation;	87.4%

: hexachloroantimonate of the dibenzo-p-dioxin radical-cation

: 262-12-4
dioxin

Conditions

Conditions	Yield
With zinc In acetonitrile for 0.166667h; Product distribution;	86%

: 1746-01-6
2,3,7,8-Tetrachloro-dibenzo[1,4]dioxine

: 262-12-4
dioxin

Conditions

Conditions	Yield
With potassium tert-butylate; isopropyl alcohol In N,N-dimethyl-formamide at 20℃; for 48h; UV-irradiation;	83%
With borane-ammonia complex In water; isopropyl alcohol at 50℃; for 5h; Sealed tube;	92 %Chromat.

: 29446-15-9
2,3-dichloro-dibenzo[1,4]dioxine

: 262-12-4
dioxin

Conditions

Conditions	Yield
With potassium tert-butylate; isopropyl alcohol In N,N-dimethyl-formamide at 20℃; for 48h; UV-irradiation;	81%
Multi-step reaction with 2 steps 1: 55.9 percent / acetophenone / methanol / 3 h / 20 °C / Irradiation 2: 95.7 percent / acetophenone / methanol / 0.17 h / 20 °C / Irradiation View Scheme
Multi-step reaction with 2 steps 1: 55.9 percent / acetophenone / methanol / 3 h / 20 °C / Irradiation 2: 11.6 percent / methanol / 0.08 h / 20 °C / Irradiation View Scheme
Multi-step reaction with 2 steps 1: 24.3 percent / methanol / 0.17 h / 20 °C / Irradiation 2: 95.7 percent / acetophenone / methanol / 0.17 h / 20 °C / Irradiation View Scheme
Multi-step reaction with 2 steps 1: 24.3 percent / methanol / 0.17 h / 20 °C / Irradiation 2: 11.6 percent / methanol / 0.08 h / 20 °C / Irradiation View Scheme

: 40581-90-6
1,2,6,7-tetrachlorodioxine

: 262-12-4
dioxin

Conditions

Conditions	Yield
With sodium hydroxide; palladium on activated charcoal In isopropyl alcohol at 23℃; for 3h;	74.1%

: 139458-06-3
2-trimethylsilyldibenzo<1,4>dioxin

: 75-36-5
acetyl chloride

A: 262-12-4
dioxin

B: 22693-98-7
2-acetyldibenzo<1,4>dioxin

Conditions

Conditions	Yield
With aluminium trichloride for 1h; Heating;	A 56% B 36%

Oxanthrene Chemical Properties

Molecular Structure:

Molecular Formula: C₁₂H₈O₂
Molecular Weight: 184.1907
IUPAC Name: Oxanthrene
Synonyms of Dibenzo-p-dioxin (CAS NO.262-12-4): AI3 08911 ; CCRIS 211 ; Dibenzo(1,4)dioxin ; Dibenzo(b,e)(1,4)dioxin ; Dibenzo-para-dioxin ; Dibenzodioxin ; Diphenylene dioxide ; EINECS 205-974-2 ; HSDB 4112 ; NCI-C03656 ; Oxanthrene ; Phenodioxin
CAS NO: 262-12-4
Classification Code: Mutation data ; Tumor data
Melting point: 120 °C
Index of Refraction: 1.625
Molar Refractivity: 52.39 cm³
Molar Volume: 148.1 cm³
Surface Tension: 51 dyne/cm
Density: 1.243 g/cm³
Flash Point: 115.7 °C
Enthalpy of Vaporization: 49.63 kJ/mol
Boiling Point: 278.5 °C at 760 mmHg
Vapour Pressure of Dibenzo-p-dioxin (CAS NO.262-12-4): 0.0072 mmHg at 25°C

Oxanthrene Toxicity Data With Reference

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
mouse	LD50	oral	866mg/kg (866mg/kg)	Chemosphere. Vol. 19, Pg. 989, 1989.
rat	LD50	intraperitoneal	30mg/kg (30mg/kg)	Pharmaceutical Bulletin. Vol. 3, Pg. 337, 1955.
rat	LD50	oral	1220mg/kg (1220mg/kg)	Chemosphere. Vol. 19, Pg. 989, 1989.

Oxanthrene Consensus Reports

IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 (1987),p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 15 (1977),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 15 (1977),p. 41.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . NCI Carcinogenesis Bioassay Completed; Results Negative NCITR* National Cancer Institute Carcinogenesis Technical Report Series. (Bethesda, MD 20014) No. NCI-CG-TR-122 ,1979. .

Oxanthrene Safety Profile

RIDADR of Dibenzo-p-dioxin (CAS NO.262-12-4): 3077
RTECS: HP3090000
HazardClass: 9
PackingGroup: I

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Oxanthrene

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Oxanthrene

Stability

Toxicology

Oxanthrene Synthetic route

Oxanthrene Chemical Properties

Oxanthrene Toxicity Data With Reference

Oxanthrene Consensus Reports

Oxanthrene Safety Profile