2,3,7-Trichlorodibenzo-p-dioxin

Modify Date: 2026-08-23 10:55:35

2,3,7-Trichlorodibenzo-p-dioxin Structure
2,3,7-Trichlorodibenzo-p-dioxin structure
Common Name 2,3,7-Trichlorodibenzo-p-dioxin
CAS Number 33857-28-2 Molecular Weight 287.52600
Density 1.562g/cm3 Boiling Point 384.8ºC at 760mmHg
Molecular Formula C12H5Cl3O2 Melting Point N/A
MSDS N/A Flash Point 152.8ºC

 Names

Name 2,3,7-Trichlorodibenzo-p-dioxin
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.562g/cm3
Boiling Point 384.8ºC at 760mmHg
Molecular Formula C12H5Cl3O2
Molecular Weight 287.52600
Flash Point 152.8ºC
Exact Mass 285.93600
PSA 18.46000
LogP 5.54480
Index of Refraction 1.649
InChIKey ZSIZNEVHVVRPFF-UHFFFAOYSA-N
SMILES Clc1ccc2c(c1)Oc1cc(Cl)c(Cl)cc1O2

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
HP3630000
CHEMICAL NAME :
Dibenzo-p-dioxin, 2,3,7-trichloro-
CAS REGISTRY NUMBER :
33857-28-2
BEILSTEIN REFERENCE NO. :
1320418
LAST UPDATED :
199612
DATA ITEMS CITED :
5
MOLECULAR FORMULA :
C12-H5-Cl3-O2
MOLECULAR WEIGHT :
287.52
WISWESSER LINE NOTATION :
T C666 BO IOJ EG FG LG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
>3 mg/kg
TOXIC EFFECTS :
Endocrine - changes in spleen weight Endocrine - changes in thymus weight Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 44,335,1978
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - guinea pig
DOSE/DURATION :
29400 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EXPEAM Experientia. (Birkhaeuser Verlag, POB 133, CH-4010 Basel, Switzerland) V.1- 1945- Volume(issue)/page/year: 38,879,1982 *** REVIEWS *** IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 15,41,1977 IARC Cancer Review:Human No Adequate Data IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 15,41,1977 IARC Cancer Review:Group 3 IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year: 7,56,1987

 Safety Information

HS Code 2932999060

 Synthetic Route

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2,3,7-Trichlorodibenzo-p-dioxin Structure

2,3,7-Trichloro...

CAS#:33857-28-2

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Literature: Luebke, Markus; Whitcombe, Michael J.; Vulfson, Evgeny N. Journal of the American Chemical Society, 1998 , vol. 120, # 51 p. 13342 - 13348

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2,3,7-Trichlorodibenzo-p-dioxin Structure

2,3,7-Trichloro...

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Literature: Qin, Zhaohai Chemosphere, 1996 , vol. 33, # 1 p. 91 - 97

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2,3,7-Trichlorodibenzo-p-dioxin Structure

2,3,7-Trichloro...

CAS#:33857-28-2

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Literature: Kuntsevich, A. D.; Golovkov, V. F.; Chernov, S. A. Doklady Chemistry, 1992 , vol. 327, # 1-3 p. 245 - 247 Doklady Akademii Nauk SSSR, 1992 , vol. 327, # 1 p. 92 - 95

~%

2,3,7-Trichlorodibenzo-p-dioxin Structure

2,3,7-Trichloro...

CAS#:33857-28-2

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Literature: Samsonov, D. P.; Rakhmanova, T. V.; Peryunina, R. I. J. Gen. Chem. USSR (Engl. Transl.), 1992 , vol. 62, # 1.2 p. 182 - 187,149 - 154

 Customs

HS Code 2932999060
Summary 2932999060. Dioxin,Furan(polychorinated dibenzo-p-dioxines,polychlorinated dibenzofurans). VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:89(articles on the list of prohibited export goods,articles on the list of prohibited import goods). MFN tariff:6.5%. General tariff:20.0%

 2,3,7-Trichlorodibenzo-p-dioxinBioassay

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Name: Affinity on cytosolic Aromatic hydrocarbon receptor (Ah)
Source: ChEMBL
Target: Aryl hydrocarbon receptor
External Id: CHEMBL649365
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 Synonyms

Dibenzo-p-dioxin,2,3,7-trichloro
2,3,7-trichlorodibenzodioxin
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