ChemicalBook > CAS DataBase List > Dibenz[a,h]anthracene

Dibenz[a,h]anthracene

Product Name
Dibenz[a,h]anthracene
CAS No.
53-70-3
Chemical Name
Dibenz[a,h]anthracene
Synonyms
DIBENZO(A,H)ANTHRACENE;benzo[k]tetraphene;DIBEN[A,H]ANTHRACENE;Db(a,h)a;NSC 22433;1,2,5,6-DBA;Isopentaphene;Dibenzo(a.h)a;1,2-Benznaphthacene;rcrawastenumberu063
CBNumber
CB4372398
Molecular Formula
C22H14
Formula Weight
278.35
MOL File
53-70-3.mol
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Dibenz[a,h]anthracene Property

Melting point:
262-265 °C(lit.)
Boiling point:
524 °C(lit.)
Density 
1.282 g/cm3
vapor pressure 
2.78 x 10-12 mmHg at 25 °C (de Kruif, 1980)
refractive index 
1.8120 (estimate)
Flash point:
-18 °C
storage temp. 
room temp
solubility 
Soluble in petroleum ether, benzene, toluene, xylene, and oils (Windholz et al., 1983).
color 
Light yellow to Yellow
Water Solubility 
2.2ug/L(25 ºC)
Merck 
14,3007
BRN 
1912416
Henry's Law Constant
1.70 x 10-6 atm?m3/mol at 25 °C (approximate - calculated from water solubility and vapor pressure)
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey
LHRCREOYAASXPZ-UHFFFAOYSA-N
CAS DataBase Reference
53-70-3(CAS DataBase Reference)
IARC
2A (Vol. Sup 7, 92) 2010
EPA Substance Registry System
Dibenz[a,h]anthracene (53-70-3)
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Safety

Hazard Codes 
T,N,F
Risk Statements 
45-50/53-67-65-38-11-52/53-36/37/38
Safety Statements 
53-45-60-61-62-26
RIDADR 
UN 3077 9/PG 3
WGK Germany 
3
RTECS 
HN2625000
HS Code 
2902.90.9000
HazardClass 
6.1(b)
PackingGroup 
III
Hazardous Substances Data
53-70-3(Hazardous Substances Data)
Toxicity
LD50 (intravenous) for rats is 10 mg/kg (Patnaik, 1992).
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H350May cause cancer

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P201Obtain special instructions before use.

P273Avoid release to the environment.

P308+P313IF exposed or concerned: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
BCR138
Product name
Dibenz[a,h]anthracene
Purity
BCR
Packaging
100mg
Price
$749
Updated
2024/03/01
Sigma-Aldrich
Product number
91861
Product name
Dibenz[a,h]anthracene
Purity
certified reference material, TraceCERT
Packaging
10mg
Price
$115
Updated
2024/03/01
Sigma-Aldrich
Product number
SCD-003
Product name
Dibenz[a,h]anthracene
Purity
vial of 1?g, analytical standard, Cerilliant?
Packaging
1g
Price
$291
Updated
2022/05/15
Sigma-Aldrich
Product number
48574
Product name
Dibenz[a,h]anthracene
Purity
analytical standard
Packaging
100mg
Price
$205
Updated
2021/12/16
TCI Chemical
Product number
D0145
Product name
Dibenz[a,h]anthracene
Purity
>98.0%(GC)
Packaging
100mg
Price
$68
Updated
2024/03/01
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Dibenz[a,h]anthracene Chemical Properties,Usage,Production

Description

1, 2:5, 6-DIBENZANTHRACENE is a crystalline aromatic hydrocarbon. It is a component of coal tars, shale oils, and soots (IARC, 1985) and has been detected in gasoline engine exhaust, coke oven emissions, cigarette smoke, charcoal broiled meats, vegetation near heavily traveled roads, and surface water and soils near hazardous waste sites. It is a kind of carcinogenic compound, and thus being mainly used for the research purpose. For example, in biological research, it is a mutagen used to induce tumorigenesis.

Chemical Properties

Dibenz[a,h]anthracene is a white crystalline solid. It is insoluble in water, slightly soluble in alcohol, and soluble in ether. This compound is incompatible with strong oxidizers.

Chemical Properties

white to light yellow crystalline solid

Chemical Properties

Dibenz(a,h)anthracene is a colorless, crystal- line solid. PAHs are compounds containing multiple benzene rings and are also called polynuclear aromatic hydrocarbons.

Physical properties

Colorless to pale yellow, monoclinic or orthorhombic crystals which with a faint, pleasant odor.

Uses

Dibenz[a,h]anthracene is a polycyclic aromatic hydrocarbon (PAH) and a known carcinogen. Dibenz[a,h]anthracene has produced positive results in bacterial DNA damage and mutagenicity assays and in mammalian cell DNA damage, mutagenicity and cell transformation assays.

Uses

There is no report on the common use of dibenz[a,h]anthracene and its commercial production.

Definition

ChEBI: Dibenz[a,h]anthracene is an ortho-fused polycyclic arene. It has a role as a mutagen.

Production Methods

There is no commercial production or known use of this compound. It has been isolated from the coal tar pitch and is found in coke over effluents. It has been detected in urban atmospheres and occurs in tobacco smoke. Dibenz [a,h]anthracene is present as a minor component of the total PAH content in the environment. Human exposure occurs through smoking, inhaling of polluted air, and by ingesting food and water containing combustion products.

General Description

White crystals or pale yellow solid. Sublimes.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

1,2:5,6-DIBENZANTHRACENE is incompatible with strong oxidizing agents. Is oxidized by chromic acid and by osmium tetraoxide .

Health Hazard

The toxicity of dibenz[a,h]anthracene is onthe same order as that of benz[a]anthracene.A lethal dose in mice by intravenous routeis 10 mg/kg. There is no report on its oraltoxicity. It is a mutagen. Its carcinogenicityin animals is well established, causing cancersin the lungs, liver, kidney, and skin.

Fire Hazard

Flash point data for 1,2:5,6-DIBENZANTHRACENE are not available; however, 1,2:5,6-DIBENZANTHRACENE is probably combustible.

Safety Profile

Confirmed carcinogen with experimental carcinogenic, tumorigenic, and neoplastigenic data. Poison by intravenous route. Human mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.

Potential Exposure

Dibenz(a,h)anthracene is a chemical substance formed during the incomplete burning of fossil fuel, garbage, or any organic matter and is found in smoke in general; it condenses on dust particles and is distributed into water and soil and on crops. DB(a,h)A is a PAH and is also a component of coal tar pitch, which is used in industry as a binder for electrodes, and creosote is used to preserve wood. PAHs are also found in limited amounts in bituminous materials and asphalt used in industry and for paving.

First aid

If this chemical gets into the eyes, remove anycontact lenses at once and irrigate immediately for at least15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts theskin, remove contaminated clothing and wash immediatelywith soap and water. Seek medical attention immediately. Ifthis chemical has been inhaled, remove from exposure,begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR ifheart action has stopped. Transfer promptly to a medicalfacility. When this chemical has been swallowed, get medical attention. Give large quantities of water and inducevomiting. Do not make an unconscious person vomit.

Carcinogenicity

Based on no human data and sufficient data from animal assays, IRIS classifies dibenz [a,h]anthracene as a B2 carcinogen, a probable human carcinogen, and the IARC classifies dibenz[a,h]anthracene as a 2A carcinogen. Dibenz[a,h]anthracene produced carcinomas in mice following oral or dermal administration and injection site tumors in several species following s.c. or i.m. injection. It is also a tumor initiator.

Source

Constituent in coal tar, cigarette smoke (4 μg/1,000 cigarettes), and exhaust condensate of gasoline engine (96 μg/g) (quoted, Verschueren, 1983). Also detected in asphalt fumes at an average concentration of 12.25 ng/m3 (Wang et al., 2001).
Based on laboratory analysis of 7 coal tar samples, dibenz[a,h]anthracene was not detected (EPRI, 1990). Lehmann et al. (1984) reported dibenz[a,h]anthracene concentrations of 0.03 mg/g and 1,300 mg/kg in a commercial anthracene oil and high-temperature coal tar, respectively. Identified in a high-temperature coal tar pitch used in roofing operations at concentrations ranging from 317 TO 1,680 mg/kg (Malaiyandi et al., 1982).
Nine commercially available creosote samples contained dibenz[a,h]anthracene at concentrations ranging from 1 to 16 mg/kg (Kohler et al., 2000).
Under atmospheric conditions, a low rank coal (0.5–1 mm particle size) from Spain was burned in a fluidized bed reactor at seven different temperatures (50 °C increments) beginning at 650 °C. The combustion experiment was also conducted at different amounts of excess oxygen (5 to 40%) and different flow rates (700 to 1,100 L/h). At 20% excess oxygen and a flow rate of 860 L/h, the amount of dibenz[a,h]anthracene emitted ranged from 32.0 ng/kg at 900 °C to 260.9 ng/kg at 750 °C. The greatest amount of PAHs emitted were observed at 750 °C (Mastral et al., 1999).

Environmental Fate

Biological. In activated sludge, <0.1% of the applied dibenz[a,h]anthracene mineralized to carbon dioxide after 5 d (Freitag et al., 1985). Based on aerobic soil die away test data, the estimated half-lives ranged from 361 to 940 d (Coover and Sims, 1987).
Ye et al. (1996) investigated the ability of Sphingomonas paucimobilis strain U.S. EPA 505 (a soil bacterium capable of using fluoranthene as a sole source of carbon and energy) to degrade 4, 5, and 6-ringed aromatic hydrocarbons (10 ppm). After 16 h of incubation using a resting cell suspension, only 7.8% of dibenz[a,h]anthracene had degraded. It was suggested that degradation occurred via ring cleavage resulting in the formation of polar metabolites and carbon dioxide.
Soil. The reported half-lives for dibenz[a,h]anthracene in a Kidman sandy loam and McLaurin sandy loam are 361 and 420 d, respectively (Park et al., 1990).
Photolytic. A carbon dioxide yield of 45.3% was achieved when dibenz[a,h]anthracene adsorbed on silica gel was irradiated with light (λ >290 nm) for 17 h (Freitag et al., 1985). The photooxidation half-life in the atmosphere was estimated to range from 0.428 to 4.28 h (Atkinson, 1987).
Chemical/Physical. Dibenz[a,h]anthracene will not hydrolyze because it does not contain a hydrolyzable functional group (Kollig, 1993).
At influent concentrations of 1.0, 0.1, 0.01, and 0.001 mg/L, the GAC adsorption capacities were 69, 12, 2.1, and 0.39 mg/g, respectively (Dobbs and Cohen, 1980).

storage

Color Code—Blue: Health Hazard/Poison: Storein a secure poison location. See the entry on “Coal TarPitch Volatiles.” A regulated, marked area should be established where this chemical is handled, used, or stored incompliance with OSHA Standard 1910.1045

Shipping

UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required. UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.

Purification Methods

The yellow-green colour (due to other pentacyclic impurities) is removed from it by crystallising from *benzene or by selective oxidation with lead tetraacetate in acetic acid [Moriconi et al. J Am Chem Soc 82 3441 1960]. [Beilstein 5 IV 2722.]

Toxicity evaluation

Dibenz[a,h]anthracene is largely associated with particulate matters, soils, and sediments. Its presence in places distant from primary sources indicates that it is reasonably stable in the atmosphere and capable of long-distance transport.
Dibenz[a,h]anthracene can be adsorbed very strongly if released to the soil. However, no leaching to the groundwater or hydrolization or evaporation from soils surface is expected.With half-lives of 18 and 21 days, it is generally subjected to biodegradation in soil systems. Volatilization of dibenz[a,h] anthracene from wet soil surfaces is not expected to be an important fate process based on an estimated Henry’s Law constant of 7.3×10-8 atm-m3 mol-1. A biodegradation halflife of 750 days at 20°C after incubation with unacclimated soil microcosms indicates that biodegradation is not an important environmental fate process in soil.
Dibenz[a,h]anthracene released to the atmosphere will likely be associated with particulate matter and may be subjected to moderately long-range transport, depending mainly on the particle size distribution and climatic conditions, which will determine the rates of wet and dry deposition. The estimated vapor pressure of 9.5×1010 mm Hg at 25°C of dibenz[a,h] anthracene indicates that this compound will exist solely in the particulate phase in the ambient atmosphere if released into air. Its presence in areas remote from primary sources demonstrates the potential for this long-range transport as well as dibenz[a,h]anthracene’s considerable stability in the air. Dibenz[a,h]anthracene absorbs solar radiation strongly, suggesting that it may be susceptible to direct photolysis in the environment. The estimated vapor phase half-life in the atmosphere is 1 day as a result of reaction with photochemically produced hydroxyl radicals.

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explo- sions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, and epoxides.

Waste Disposal

See the entry on Coal Tar Pitch Volatiles. Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/ mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal.

References

https://pubchem.ncbi.nlm.nih.gov/compound/Dibenz_a_h_anthracene#section=Top
Heidelberger, Charles, and H. B. Jones. "The Distribution of Radioactivity in the Mouse Following Administration of Dibenzanthracene Labeled in the 9 and 10 Positions with Carbon Fourteen." Cancer1.2(2010):252.
https://rais.ornl.gov/tox/profiles/dibenz_a_h_anthracene_c_V1.html

Dibenz[a,h]anthracene Preparation Products And Raw materials

Raw materials

Preparation Products

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Dibenz[a,h]anthracene Suppliers

Xi’an ODER photoelectric materials Co., Ltd
Tel
029-81125951 18893797072
Fax
029-81125632
Email
kouxin@xaoder.com
Country
China
ProdList
116
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58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
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Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
Advantage
81
Nanjing Habo Medical Technology Co., Ltd.
Tel
025-85760892 13376090521
Fax
025-85766769
Email
sales@habotech.com
Country
China
ProdList
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Chemsky(shanghai)International Co.,Ltd.
Tel
021-50135380
Email
shchemsky@sina.com
Country
China
ProdList
32344
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Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
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3007715519@qq.com
Country
China
ProdList
18736
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Syntechem Co.,Ltd
Tel
Fax
E-Mail Inquiry
Email
info@syntechem.com
Country
China
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12990
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BEST-REAGENT
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400-1166-196 18981987031
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028-84555506 800101999
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Maya High Purity Chemicals
Tel
+86 (573) 82222445 (0)18006601000 452520369
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+86 (573) 82222643
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sales@maya-r.com
Country
China
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View Lastest Price from Dibenz[a,h]anthracene manufacturers

Career Henan Chemical Co
Product
Dibenz[a,h]anthracene 53-70-3
Price
US $6.68/KG
Min. Order
1KG
Purity
97%-99%
Supply Ability
1kg-1000kg
Release date
2020-01-10

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