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Amines and amides

Nitrourea

Also known as N-Nitrocarbamide, UREA, NITRO-, 1-Nitrourea

CAS 556-89-8Formula CH3N3O3Molar mass 105.05 g/molEC 209-144-0
GHS signal word: Danger. Pictograms: Explosive, Harmful or irritant 1 supplier listed
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Nitrourea chemical structure, CH3N3O3, CAS 556-89-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
556-89-8
Formula
CH3N3O3
Physical form
Powder
HS code
292800
Category
Amines and amides
UN number
UN 0147
Illustrative photo, closed white HDPE bottles and amber jars on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is Nitrourea?

Plain description, key identifiers and synonyms

Nitrourea appears as a colorless to white crystalline powder solid. Mildly sensitive to heat and shock. An extremely powerful explosive. Decomposes to emit toxic nitrogen oxide fumes. May explode under exposure to intense heat or fire. Primary hazard is blast of an instantaneous explosion, not flying projectiles or fragments.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
nitrourea
CAS number
556-89-8 CAS number cross-checked
EC number
209-144-0
Molecular formula
CH3N3O3
UNII
3UA35787YZ
InChIKey
CMUOJBJRZUHRMU-UHFFFAOYSA-N
InChI
InChI=1S/CH3N3O3/c2-1(5)3-4(6)7/h(H3,2,3,5)
SMILES (canonical and isomeric)
C(=O)(N)N[N+](=O)[O-]

Synonyms

  • N-Nitrocarbamide
  • UREA, NITRO-
  • 1-Nitrourea
  • N-Nitrourea
  • Nitro urea
  • Urea, N-nitro-
  • Nitroharnstoff
  • nitro isourea
  • Nitro urea [UN0147] [Explosive 1.1D]

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
Powderexp.

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
105.05 g/molcalc.
Exact mass
105.0174 Dacalc.
LogP (octanol/water)
-1.15calc.
Topological polar surface area
98.26 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
1calc.
Heavy atoms
7calc.
Rings
0calc.
Aromatic rings
0calc.
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.

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.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H332Harmful if inhaled.
Precautionary statements (25)
  • 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.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • 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.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • 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 0147
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

Nitrourea suppliers

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Where suppliers are based

1 supplier in 1 country

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Nitrourea 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

Regulatory status

Inventories, regulations and trade controls that list this substance

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 Nitrourea is traded under.

HS 2928.00Indicative HS code

Organic derivatives of hydrazine or of hydroxylamine

World exports in 2024
$1.38B
−9.0% vs 2023, imports $1.52B
2019 to 2024
Top exporters
  1. Switzerland * partner reported44.0%
  2. China18.4%
  3. Italy9.4%
Top importers
  1. Brazil21.8%
  2. United States12.8%
  3. Italy10.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Nitrourea, based on the data on this page

What is Nitrourea?

Nitrourea appears as a colorless to white crystalline powder solid. Mildly sensitive to heat and shock. An extremely powerful explosive. Decomposes to emit toxic nitrogen oxide fumes. May explode under exposure to intense heat or fire.

What is the CAS number of Nitrourea?

The CAS registry number of Nitrourea is 556-89-8.

What is the molecular formula and weight of Nitrourea?

The molecular formula of Nitrourea is CH3N3O3 and its molar mass is 105.05 g/mol.

What is Nitrourea used for?

Known uses and roles of Nitrourea include building blocks in research and laboratory.

Is Nitrourea hazardous?

Nitrourea 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 Nitrourea?

Nitrourea is usually classified under HS code 292800 (Organic derivatives of hydrazine or of hydroxylamine). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Nitrourea?

CompoundList lists 1 supplier of Nitrourea in Germany. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Nitrourea?

Suppliers quote Nitrourea 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 Nitrourea

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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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