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Dye intermediates

2,6-Dinitrophenol

Also known as o-Dinitrophenol, Phenol, 2,6-dinitro-, beta-Dinitrophenol

CAS 573-56-8Formula C6H4N2O5Molar mass 184.11 g/molEC 209-357-9
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Serious health hazard, Hazardous to the environment 3 suppliers listed
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2,6-Dinitrophenol chemical structure, C6H4N2O5, CAS 573-56-8
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Pale yellow rhomboid needles or leaflets from dilute alcohol
Melting point
63.5 °C
Density
1.68 (est) - Denser than water, will sink
Solubility
Slightly soluble in cold water or cold alcohol, freely soluble in chloroform, ether, boi…
HS code
290899
Category
Dye intermediates
UN number
UN 1320
Illustrative photo, off-white powder in an open kraft paper sack in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is 2,6-Dinitrophenol?

Plain description, key identifiers and synonyms

2,6-dinitrophenol is a dinitrophenol.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,6-dinitrophenol
CAS number
573-56-8 CAS number cross-checked
EC number
209-357-9
Molecular formula
C6H4N2O5
UNII
F4QM4I92KC
MDL number
MFCD00024235
InChIKey
JCRIDWXIBSEOEG-UHFFFAOYSA-N
InChI
InChI=1S/C6H4N2O5/c9-6-4(7(10)11)2-1-3-5(6)8(12)13/h1-3,9H
SMILES (canonical and isomeric)
C1=CC(=C(C(=C1)[N+](=O)[O-])O)[N+](=O)[O-]

Synonyms

  • o-Dinitrophenol
  • Phenol, 2,6-dinitro-
  • beta-Dinitrophenol
  • 2,6-DNP
  • 2,6-Dinitrofenol
  • Phenol, beta-dinitro-
  • Dinitro-2,6-phenol
  • 2,6-dinitro phenol
  • 2,6-Dinitrophenol, 95%
  • 2,6-Dinitrophenol (wetted with >15% H2O)
  • 2,6-Dinitrophenol - wetted - min 15% water
  • 2,6-Dinitrophenol(contains 15% water)
  • 2,6-Dinitrophenol 10 microg/mL in Acetonitrile

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
Pale yellow rhomboid needles or leaflets from dilute alcoholexp.
Melting point
63.5 °Cexp.
Density
1.68 (est) - Denser than water, will sinkexp.
Solubility
Slightly soluble in cold water or cold alcohol, freely soluble in chloroform, ether, boiling alcohol, fixed alkali hydroxide solutionexp.

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
184.11 g/molcalc.
Exact mass
184.012 Dacalc.
LogP (octanol/water)
1.21calc.
Topological polar surface area
106.5 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
5calc.
Rotatable bonds
2calc.
Heavy atoms
13calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)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, c1ccccc1

c1ccccc1

1 ring, 6 atoms, the Benzene ring system.

485,677 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
  • H331Toxic if inhaled.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H411Toxic to aquatic life with long lasting effects.
Precautionary statements (20)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P262Do not get in eyes, on skin, or on clothing.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P316Get emergency medical help immediately.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P361 + P364Take off immediately all contaminated clothing. And wash it before reuse.
  • P391Collect spillage.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 1320

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

2,6-Dinitrophenol suppliers

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

All 3 suppliers

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

3 suppliers in 3 countries

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2,6-Dinitrophenol price

Indicative price range per kg from live supplier offers

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Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

In manufacture of dyes and organic chemicals, as indicator.

Dyes, especially sulfur colors, picric acid, picramic acid, preservation of lumber, manufacture of the photographic developer diaminophenol hydrochloride, explosives manufacture, indicator, reagent for K and NH4 ions.

How it is made

(a) By heating phenol with dilute sulfuric acid, cooling the product, and then nitrating, keeping the temperature approximately 50 °C, (b) by nitration with mixed acid with careful temperature control. (Dinitrophenol)

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 609-054-00-5[3]

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code 2,6-Dinitrophenol is traded under.

HS 2908.99Indicative HS code

Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or…

World exports in 2024
$77.7M
+4.6% vs 2023, imports $83.7M
2019 to 2024
Top exporters
  1. China32.2%
  2. India * partner reported22.2%
  3. Spain8.5%
Top importers
  1. United States13.9%
  2. Spain10.6%
  3. Turkey8.3%

* Partner reported figures, a lower bound.

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

The HS code shown for 2,6-Dinitrophenol is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2,6-Dinitrophenol, based on the data on this page

What is 2,6-Dinitrophenol?

2,6-dinitrophenol is a dinitrophenol.

What is the CAS number of 2,6-Dinitrophenol?

The CAS registry number of 2,6-Dinitrophenol is 573-56-8.

What is the molecular formula and weight of 2,6-Dinitrophenol?

The molecular formula of 2,6-Dinitrophenol is C6H4N2O5 and its molar mass is 184.11 g/mol.

What is 2,6-Dinitrophenol used for?

In manufacture of dyes and organic chemicals, as indicator. Dyes, especially sulfur colors, picric acid, picramic acid, preservation of lumber, manufacture of the photographic developer diaminophenol hydrochloride, explosives manufacture, indicator, reagent for K and NH4 ions.

Is 2,6-Dinitrophenol hazardous?

2,6-Dinitrophenol carries the GHS signal word "Danger". Main hazards: toxic if swallowed, toxic in contact with skin, toxic if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of 2,6-Dinitrophenol?

2,6-Dinitrophenol is usually classified under HS code 290899 (Halogenated, sulphonated, nitrated or nitrosated derivatives of phenols or…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2,6-Dinitrophenol?

CompoundList lists 3 suppliers of 2,6-Dinitrophenol in China, Hong Kong and Russia. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of 2,6-Dinitrophenol?

Suppliers quote 2,6-Dinitrophenol 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 2,6-Dinitrophenol

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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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