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Aromatic building blocks

2,4-Dinitrotoluene

Also known as 1-Methyl-2,4-dinitrobenzene, 2,4-Dinitrotoluol, 2,4-DNT

CAS 121-14-2Formula C7H6N2O4Molar mass 182.14 g/molEC 204-450-0
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Serious health hazard, Hazardous to the environment 15 suppliers listed
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2,4-Dinitrotoluene chemical structure, C7H6N2O4, CAS 121-14-2
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Yellow needles or monoclinic prisms
Melting point
70.5 °C
Boiling point
300 °C
Density
1.521 g/mL at 15 °C
Flash point
206.7 °C
HS code
290420
Category
Aromatic building blocks
UN number
UN 1600
Illustrative photo, yellow pigment powder in an open kraft paper sack in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is 2,4-Dinitrotoluene?

Plain description, key identifiers and synonyms

2,4-dinitrotoluene is a dinitrotoluene in which the methyl group is ortho to one of the nitro groups and para to the other. It is the most common isomer of dinitrotoluene.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-methyl-2,4-dinitrobenzene
CAS number
121-14-2 CAS number cross-checkedOther or deprecated CAS: 1326-41-6, 84029-42-5
EC numbers
204-450-0, 215-422-2, 281-716-2
Molecular formula
C7H6N2O4
UNII
6741D310ED
MDL number
MFCD00007172
InChIKey
RMBFBMJGBANMMK-UHFFFAOYSA-N
InChI
InChI=1S/C7H6N2O4/c1-5-2-3-6(8(10)11)4-7(5)9(12)13/h2-4H,1H3
SMILES (canonical and isomeric)
CC1=C(C=C(C=C1)[N+](=O)[O-])[N+](=O)[O-]

Synonyms

  • 1-Methyl-2,4-dinitrobenzene
  • 2,4-Dinitrotoluol
  • 2,4-DNT
  • Benzene, 1-methyl-2,4-dinitro-
  • 2,4-Dinitromethylbenzene
  • Toluene, 2,4-dinitro-
  • 2,4-Dinitro-1-methylbenzene
  • 4-Methyl-1,3-dinitrobenzene
  • 6-Methyl-1,3-dinitrobenzene
  • RCRA waste number U105
  • 2,4-Dinitrotoluene, practical grade
  • Benzene, 1-methyl-2,4-dinitro-, sulfurized
  • DNT
  • 2,4-Dinitrotoluene (containing 0.5% 2,6-dinitrotoluene)
  • 2,4-Dinitrotoluene (containing 1.0-1.5% 2,6-dinitrotoluene)
  • 2,-Dinitrotoluene
  • Dinitrotoluol
  • RCRA waste no. U105
  • 1-methyl-2,4-dinitro-benzene
  • 2,4-dinitro-toluene
  • 2,4-Dinitrotoluene, 97%
  • 2,4-Dinitrotoluene, analytical standard
  • Dinitro-1-methylbenzene, 2,4-
  • 2,4-Dinitrotoluene 1000 microg/mL in Methanol
  • 2,4-Dinitrotoluene 100 microg/mL in Acetonitrile
Show all 26 synonyms
  • 2,4-Dinitrotoluene, certified reference material, TraceCERT(R)

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
Yellow needles or monoclinic prismsexp.
Odour
SLIGHT ODORexp.
Melting point
70.5 °Cexp.
Boiling point
300 °Cexp.
Density
1.521 g/mL at 15 °Cexp.
Flash point
206.7 °Cexp.
Solubility
In water, 2.70 × 10⁺² mg/L at 22 °Cexp.
Vapour pressure
6 × 10⁻⁵ mm Hg at 15 °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
182.14 g/molcalc.
Exact mass
182.0328 Dacalc.
LogP (octanol/water)
1.81calc.
Topological polar surface area
86.28 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
2calc.
Heavy atoms
13calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.14calc.
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
133NFPA 704 rating

Hazard statements

  • H301Toxic if swallowed.
  • H311Toxic in contact with skin.
  • H331Toxic if inhaled.
  • H341Suspected of causing genetic defects.
  • H350May cause cancer.
  • H361fSuspected of damaging fertility.
  • H373May cause damage to organs through prolonged or repeated exposure.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (22)
  • P203Obtain, read and follow all safety instructions before use.
  • 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.
  • P318If exposed or concerned, get medical advice.
  • 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 1600
Transport hazard class
6.1
Packing group
II

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

2,4-Dinitrotoluene suppliers

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Where suppliers are based

15 suppliers in 5 countries

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2,4-Dinitrotoluene 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

2,4-Dinitrotoluene is used by the munitions industry as a modifier for smokeless powders and, to a limited extent, as a gelatinizing and waterproofing agent in military and commercial explosive compositions.

Intermediate in the manufacture of toluene diisocyanate and polyurethanes.

Organic synthesis, toluidines.

Most of the 2,4-dinitrotoluene produced is hydrogenated to 2,4-diaminotoluene (m-tolylenediamine) for conversion to toluene diisocyanate (TDI), which is a component of a polyurethane, a much smaller amount is used in explosives and for further nitration to TNT.

The predominant use of 2,4-dinitrotoluene is as an intermediate in the manufacture of polyurethanes.

Industrial uses: Intermediate, Energy Releasers (explosives, motive propellant).

Pharmacological actions

  • Carcinogens

How it is made

Dinitration of toluene results in the formation of a number of isomeric products, and with a typical sulfuric-nitric acid nitrating mixture the following mixture of isomers is obtained: 75 wt% 2,4-dinitrotoluene, 19 wt% 2,6-dinitrotoluene, 2.5 wt% 3,4-dinitrotoluene, 1 wt% 2,3-dinitrotoluene, and 0.5 wt% 2,5-dinitrotoluene.

4-Nitrotoluene is nitrated with mixed acid (containing equimolar HNO3) under controlled conditions and continuous operation to give a 96% yield of 2,4-dinitrotoluene.

Read more

In Meissner units, for tighter control of the whole process, cocurrent flow is used in each step to separate mono- and dinitration, but countercurrent flow is used between them to prevent under or overnitration, this is also done in one-step nitration plants. After nitration, if separation of the resulting emulsion is difficult, the introduction of pure product can give ... rapid separation.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 609-007-00-9[1]

Health and food

  • EU Cosmetics Regulation Annex II, prohibited in cosmetics
    Name: 2,4-Dinitrotoluene [1], Dinitrotoluene, technical grade [2], Ref no: 687, Annex ref: II/687

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 2,4-Dinitrotoluene is traded under.

HS 2904.20Indicative HS code

Derivatives containing only nitro or only nitroso groups

World exports in 2024
$440M
+46.4% vs 2023, imports $463M
2019 to 2024
Top exporters
  1. Germany27.6%
  2. Poland17.1%
  3. Portugal16.0%
Top importers
  1. Belgium34.0%
  2. United States11.0%
  3. Germany9.1%
Reported customs values in USD, not prices.Full trade data

The HS code shown for 2,4-Dinitrotoluene is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about 2,4-Dinitrotoluene, based on the data on this page

What is 2,4-Dinitrotoluene?

2,4-dinitrotoluene is a dinitrotoluene in which the methyl group is ortho to one of the nitro groups and para to the other. It is the most common isomer of dinitrotoluene.

What is the CAS number of 2,4-Dinitrotoluene?

The CAS registry number of 2,4-Dinitrotoluene is 121-14-2. Other or deprecated CAS numbers: 1326-41-6, 84029-42-5.

What is the molecular formula and weight of 2,4-Dinitrotoluene?

The molecular formula of 2,4-Dinitrotoluene is C7H6N2O4 and its molar mass is 182.14 g/mol.

What is 2,4-Dinitrotoluene used for?

2,4-Dinitrotoluene is used by the munitions industry as a modifier for smokeless powders and, to a limited extent, as a gelatinizing and waterproofing agent in military and commercial explosive compositions. Intermediate in the manufacture of toluene diisocyanate and polyurethanes. Organic synthesis, toluidines.

Is 2,4-Dinitrotoluene hazardous?

2,4-Dinitrotoluene 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 2,4-Dinitrotoluene?

2,4-Dinitrotoluene is usually classified under HS code 290420 (Derivatives containing only nitro or only nitroso groups). This is indicative, confirm it with your customs broker before shipping.

Where can I buy 2,4-Dinitrotoluene?

CompoundList lists 15 suppliers of 2,4-Dinitrotoluene in China, United States, India, Canada 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 2,4-Dinitrotoluene in India?

2 suppliers in India list 2,4-Dinitrotoluene on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of 2,4-Dinitrotoluene?

Suppliers quote 2,4-Dinitrotoluene 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 2,4-Dinitrotoluene

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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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