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Aromatic building blocks

Styphnic acid

Also known as 2,4,6-Trinitroresorcinol, 1,3-Benzenediol, 2,4,6-trinitro-, 2,4,6-Trinitro-1,3-benzenediol

CAS 82-71-3Formula C6H3N3O8Molar mass 245.10 g/molEC 201-436-6
GHS signal word: Danger. Pictograms: Explosive, Harmful or irritant 9 suppliers listed
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Styphnic acid chemical structure, C6H3N3O8, CAS 82-71-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
82-71-3
Formula
C6H3N3O8
Physical form
Crystals
HS code
290899
Category
Aromatic building blocks
UN number
UN 0219
Illustrative photo, a shrink wrapped pallet of kraft paper sacks in a chemical plant
Typical packagingIllustrative packaging image, not the actual product

What is Styphnic acid?

Plain description, key identifiers and synonyms

Trinitroresorcinol appears as a yellowish, crystalline solid. Used as a priming agent. Very sensitive to heat. Primary hazard is blast of an instantaneous explosion, not flying projectiles or fragments. Under prolonged exposure to fire or heat the containers may explode violently.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
2,4,6-trinitrobenzene-1,3-diol
CAS number
82-71-3 CAS number cross-checked
EC number
201-436-6
Molecular formula
C6H3N3O8
UNII
R4TJB1U00D
InChIKey
IXHMHWIBCIYOAZ-UHFFFAOYSA-N
InChI
InChI=1S/C6H3N3O8/c10-5-2(7(12)13)1-3(8(14)15)6(11)4(5)9(16)17/h1,10-11H
SMILES (canonical and isomeric)
C1=C(C(=C(C(=C1[N+](=O)[O-])O)[N+](=O)[O-])O)[N+](=O)[O-]

Synonyms

  • 2,4,6-Trinitroresorcinol
  • 1,3-Benzenediol, 2,4,6-trinitro-
  • 2,4,6-Trinitro-1,3-benzenediol
  • Trinitroresorcinol
  • Resorcinol, 2,4,6-trinitro-
  • 2,4-Dihydroxy-1,3,5-trinitrobenzene
  • 3-Hydroxy-2,4,6-trinitrophenol
  • 2,4,6-Trinitro resorcinol
  • UN 0219 (Salt/Mix)
  • UN 0394 (Salt/Mix)
  • 1,3-Dihydroxy-2,4,6-trinitrobenzene
  • Resorcinol, 2,4,6-trinitro-(8CI)
  • 2,4,6-trinitrobenzene-1,3-diol
  • Styphninsaure
  • 2,6-Trinitroresorcinol
  • Resorcinol,4,6-trinitro-
  • 2,6-Trinitro-1,3-benzenediol

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

Physical form
Crystalsexp.

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
245.10 g/molcalc.
Exact mass
244.992 Dacalc.
LogP (octanol/water)
0.82calc.
Topological polar surface area
169.9 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
8calc.
Rotatable bonds
3calc.
Heavy atoms
17calc.
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
GHS01: Explosive
Explosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H201Explosive, mass explosion hazard.
  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H332Harmful if inhaled.
Precautionary statements (21)
  • P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • P230Keep wetted with water or another suitable desensitiser.
  • P240Ground and bond container and receiving equipment.
  • P250Do not subject to grinding, shock or friction.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P370 + P380In case of fire: Evacuate area.
  • P372Explosion risk.
  • P373Do not fight fire when fire reaches explosives.
  • P401Store in accordance with local regulations.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 0219
Transport hazard class
1.1

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

Styphnic acid suppliers

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

All 9 suppliers
9 of 9 offers

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

9 suppliers in 3 countries

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Styphnic acid price

Indicative price range per kg from live supplier offers

No published prices right now

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

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

Consumer uses: Intermediate.

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 609-018-00-9

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 Styphnic acid 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 Styphnic acid is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Styphnic acid, based on the data on this page

What is Styphnic acid?

Trinitroresorcinol appears as a yellowish, crystalline solid. Used as a priming agent. Very sensitive to heat. Primary hazard is blast of an instantaneous explosion, not flying projectiles or fragments. Under prolonged exposure to fire or heat the containers may explode violently.

What is the CAS number of Styphnic acid?

The CAS registry number of Styphnic acid is 82-71-3.

What is the molecular formula and weight of Styphnic acid?

The molecular formula of Styphnic acid is C6H3N3O8 and its molar mass is 245.10 g/mol.

What is Styphnic acid used for?

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

Is Styphnic acid hazardous?

Styphnic acid carries the GHS signal word "Danger". Main hazards: explosive, mass explosion hazard, harmful if swallowed, harmful in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Styphnic acid?

Styphnic acid 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 Styphnic acid?

CompoundList lists 9 suppliers of Styphnic acid in United States, India and Germany. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Styphnic acid in India?

3 suppliers in India list Styphnic acid on CompoundList. Filter the suppliers list by country and send a request to compare prices, grades and delivery times.

What is the price of Styphnic acid?

Suppliers quote Styphnic acid 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 Styphnic acid

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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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