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Aromatic building blocks

Dibenz(a,h)anthracene

Also known as Dibenz[a,h]anthracene, 1,2:5,6-Dibenzanthracene, Dibenzo[a,h]anthracene

CAS 53-70-3Formula C22H14Molar mass 278.35 g/molEC 200-181-8
GHS signal word: Danger. Pictograms: Serious health hazard, Hazardous to the environment 14 suppliers listed
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Dibenz(a,h)anthracene chemical structure, C22H14, CAS 53-70-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Colorless plates or leaflets /recrystallized/ from acetic acid
Melting point
269 °C
Boiling point
524 °C
Density
1.282 g/cm³
Solubility
In water, 2.49 × 10⁻³ mg/L at 25 °C
HS code
290290
Category
Aromatic building blocks
UN number
UN 3077
Illustrative photo, colourless crystals in small glass vials on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Dibenz(a,h)anthracene?

Plain description, key identifiers and synonyms

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

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
naphtho[1,2-b]phenanthrene
CAS number
53-70-3 CAS number cross-checked
EC number
200-181-8
Molecular formula
C22H14
UNII
T30ELH3D5X
MDL number
MFCD00003708
InChIKey
LHRCREOYAASXPZ-UHFFFAOYSA-N
InChI
InChI=1S/C22H14/c1-3-7-19-15(5-1)9-11-17-14-22-18(13-21(17)19)12-10-16-6-2-4-8-20(16)22/h1-14H
SMILES (canonical and isomeric)
C1=CC=C2C(=C1)C=CC3=CC4=C(C=CC5=CC=CC=C54)C=C32

Synonyms

  • Dibenz[a,h]anthracene
  • 1,2:5,6-Dibenzanthracene
  • Dibenzo[a,h]anthracene
  • Dibenzo(a,h)anthracene
  • 1,2,5,6-Dibenzanthracene
  • DB(a,h)A
  • 1,2:5,6-Benzanthracene
  • 1,2:5,6-Dibenzoanthracene
  • Dibenz(a,h)antracene
  • 1,2,5,6-Dba
  • 1,2:5,6-Dibenz(a)anthracene
  • RCRA waste number U063
  • naphtho[1,2-b]phenanthrene
  • 1,2,5,6-Dibenzanthraceen
  • Dibenz[a,h]antracene
  • Db[a,h]a
  • naphtho(1,2-b)phenanthrene
  • Dibenza,hanthracene
  • pentacyclo(12.8.0.03,12.04,9.015,20)docosa-1,3(12),4,6,8,10,13,15,17,19,21-undecaene
  • benzo[k]tetraphene
  • Naphtho[1',2':2,3]phenanthrene
  • RCRA waste no. U063
  • 1,6-Benzanthracene
  • 1,6-Dibenzoanthracene
  • Dibenza[a,h]-anthracene
Show all 30 synonyms
  • 1,5,6-Dibenzanthraceen
  • dibenzo (a,h) anthracene
  • 1,6-Dibenz[a]anthracene
  • 1,6-Dibenzanthracene
  • DIBENZO (a.h) ANTHRACENE (purity)

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Colorless plates or leaflets /recrystallized/ from acetic acidexp.
Melting point
269 °Cexp.
Boiling point
524 °Cexp.
Density
1.282 g/cm³exp.
Solubility
In water, 2.49 × 10⁻³ mg/L at 25 °Cexp.
Vapour pressure
9.55 × 10⁻¹⁰ mm Hg at 25 °Cexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
278.35 g/molcalc.
Exact mass
278.1096 Dacalc.
LogP (octanol/water)
6.3calc.
Topological polar surface area
0 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
0calc.
Rotatable bonds
0calc.
Heavy atoms
22calc.
Rings
5calc.
Aromatic rings
5calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, c1ccc2c(c1)ccc1cc3c(ccc4ccccc43)cc12

c1ccc2c(c1)ccc1cc3c(ccc4ccccc43)cc12

5 rings, 22 atoms. This chemical is the scaffold itself.

30 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H350May cause cancer.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (7)
  • P203Obtain, read and follow all safety instructions before use.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3077
Transport hazard class
9
Packing group
III

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Dibenz(a,h)anthracene suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 14 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

14 suppliers in 5 countries

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Dibenz(a,h)anthracene price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

There is no ... known use of this compound.

PAHs are generally not produced commercially in the United States except as research chemicals. (Polycyclic aromatic hydrocarbons).

Substance listed with specific concentration in tattoo ink and/or permanent make up according to EU Commission Regulation 2020/2081. The concentration limit (by weight) is 0.00005%.

Industrial uses: Binder.

Pharmacological actions

  • Carcinogens

Roles

  • aetiopathogenetic role
  • genotoxin
  • mutagen

Pharmacology

Dibenzo[a,h]anthracene is a crystalline, carcinogenic aromatic hydrocarbon consisting of five fused benzene rings, produced by the incomplete combustion of organic matter. Dibenzo(a,h)anthracene is primarily found in gasoline exhaust, tobacco smoke, coal tar, soot and certain food products, especially smoked and barbecued foods. This substance is used only for research purposes to induce tumorigenesis. Dibenzo(a,h)anthracene is a mutagen and is reasonably anticipated to be a human carcinogen.

How it is made

From methyl dinaphthyl ketone.

It has been isolated from coal tar pitch and is found in coke oven effluents.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 601-041-00-2

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: Dibenz[a,h]anthracene, Ref no: 637, Annex ref: II/637

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Dibenz(a,h)anthracene is traded under.

HS 2902.90Indicative HS code

Cyclic hydrocarbons, other

World exports in 2024
$612M
−6.1% vs 2023, imports $670M
2019 to 2024
Top exporters
  1. China28.0%
  2. Germany13.9%
  3. India * partner reported12.6%
Top importers
  1. Germany11.1%
  2. United States10.6%
  3. South Korea8.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Dibenz(a,h)anthracene is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Dibenz(a,h)anthracene, based on the data on this page

What is Dibenz(a,h)anthracene?

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

What is the CAS number of Dibenz(a,h)anthracene?

The CAS registry number of Dibenz(a,h)anthracene is 53-70-3.

What is the molecular formula and weight of Dibenz(a,h)anthracene?

The molecular formula of Dibenz(a,h)anthracene is C22H14 and its molar mass is 278.35 g/mol.

What is Dibenz(a,h)anthracene used for?

There is no ... known use of this compound. PAHs are generally not produced commercially in the United States except as research chemicals. (Polycyclic aromatic hydrocarbons). Substance listed with specific concentration in tattoo ink and/or permanent make up according to EU Commission Regulation 2020/2081.

Is Dibenz(a,h)anthracene hazardous?

Dibenz(a,h)anthracene carries the GHS signal word "Danger". Main hazards: may cause cancer, very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Dibenz(a,h)anthracene?

Dibenz(a,h)anthracene is usually classified under HS code 290290 (Cyclic hydrocarbons, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Dibenz(a,h)anthracene?

CompoundList lists 14 suppliers of Dibenz(a,h)anthracene in China, United States, Australia, India and 1 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Dibenz(a,h)anthracene in India?

1 supplier in India list Dibenz(a,h)anthracene on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Dibenz(a,h)anthracene?

Suppliers quote Dibenz(a,h)anthracene on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Dibenz(a,h)anthracene

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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