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Nitriles, nitro and azo compounds

Azodicarbonamide

Also known as Azodicarboxamide, Diazenedicarboxamide, Azobisformamide

CAS 123-77-3Formula C2H4N4O2Molar mass 116.08 g/molEC 204-650-8
GHS signal word: Danger. Pictograms: Serious health hazard 52 suppliers listed
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Azodicarbonamide chemical structure, C2H4N4O2, CAS 123-77-3
2D chemical structure

Key facts

What buyers check first

All properties
Appearance
Orange-red crystals
Melting point
225 °C
Boiling point
Decomposes
Density
Relative density (water = 1): 1.65
Flash point
96.1 °C
HS code
292700
Category
Nitriles, nitro and azo compounds
UN number
UN 3242
Illustrative photo, closed jumbo bulk bags in a warehouse in a warehouse
Typical packagingIllustrative packaging image, not the actual product

What is Azodicarbonamide?

Plain description, key identifiers and synonyms

Azodicarbonamide is an organic molecular entity.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(E)-carbamoyliminourea
CAS number
123-77-3 CAS number cross-checked
EC number
204-650-8
Molecular formula
C2H4N4O2
UNII
56Z28B9C8O
MDL number
MFCD00007958
InChIKey
XOZUGNYVDXMRKW-AATRIKPKSA-N
InChI
InChI=1S/C2H4N4O2/c3-1(7)5-6-2(4)8/h(H2,3,7)(H2,4,8)/b6-5+
Canonical SMILES
NC(=O)N=NC(N)=O
Isomeric SMILES
C(=O)(N)/N=N/C(=O)N

Synonyms

  • Azodicarboxamide
  • Diazenedicarboxamide
  • Azobisformamide
  • Azodiformamide
  • Azodicarboamide
  • Azobiscarbonamide
  • Azobiscarboxamide
  • Celogen AZ
  • Azodicarbamide
  • Porofor ChKhZ 21
  • 1,1'-Azodiformamide
  • Lucel ADA
  • 1,1'-Azobiscarbamide
  • 1,1'-Azobisformamide
  • Porofor 505
  • Genitron AC
  • Yunihomu AZ
  • Celosen AZ
  • Genitron EPC
  • Porofor ChKhZ 21R
  • Unifoam AZ
  • Uniform AZ
  • Azodicarboxylic acid diamide
  • Porofor ADC/R
  • Genitron AC 2
Show all 39 synonyms
  • Genitron AC 4
  • C,C'-Azodi(formamide)
  • Nitropore
  • Pinhole AK 2
  • Ficel EP-A
  • Kempore
  • Pinhole ACR 3
  • ABFA
  • Kempore 125
  • Porofor DhKhZ 21
  • Celogen AZ 130
  • Celogen AZ 199
  • Kempore R 125
  • ChKhZ 21r

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
Orange-red crystalsexp.
Melting point
225 °Cexp.
Boiling point
Decomposesexp.
Density
Relative density (water = 1): 1.65exp.
Flash point
96.1 °Cexp.
Solubility
Very slightly soluble in hot water, insoluble in alcoholexp.
Vapour pressure
3.2 × 10⁻⁸ hPa @ 50 °C, 1.3 × 10⁻⁷ hPa @ 60 °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
116.08 g/molcalc.
Exact mass
116.0334 Dacalc.
LogP (octanol/water)
-0.4calc.
Topological polar surface area
110.9 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
8calc.
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
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled.
Precautionary statements (8)
  • P233Keep container tightly closed.
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P271Use only outdoors or in a well-ventilated area.
  • P284In case of inadequate ventilation wear respiratory protection.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P342 + P316If experiencing respiratory symptoms: Get emergency medical help immediately.
  • P403Store in a well-ventilated place.
  • P501Dispose of contents and container in accordance with local regulations.
UN number
UN 3242
Transport hazard class
4.1
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

Azodicarbonamide suppliers

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

All 52 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

52 suppliers in 12 countries

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Azodicarbonamide 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

Blowing agent for synthetic and natural rubber & ethylene-vinyl acetate copolymers, for Poly(vinylchloride) compounds and thermoplastic urethane elastomers, for polyolefin resins, acrylic & acetal polymers & polyethylene, for acrylonitrile-butadiene-styrene resins and high impact polystyrene sheeting.

Aging & bleaching ingredient in cereal flour, up to 45 ppm.

Foaming agents may be added to increase porosity of plastics which normally foam or to create foamed structures from plastics which have no inherent foaming properties. ... Most common commercial chemical foaming agent is azobisformamide.

Azodicarbonamide and cystine are used in impregnation solution for catalyst production for auto exhaust gas purging.

Industrial uses: Processing aids not otherwise specified, Other, Foamant, Propellants, non-motive (blowing agents), Density modifier, Adhesion/cohesion promoter.

Consumer uses: Propellants, non-motive (blowing agents), Other, Foamant.

Pharmacological actions

  • Anti-HIV Agents
  • Immunosuppressive Agents

Functional uses

  • Filler
  • Flame retardant
  • Foamant
  • Food preservative
  • Hardener
  • Processing aids not otherwise specified
  • Propellants, non-motive (blowing agents)
  • Surfactant (surface active agent)

How it is made

Readily produced from urea and hydrazine.

Reaction of hydrazine & an alkali cyanate (or urea) followed by oxidation using either chlorine, chromic acid, a nitrate in the presence of a catalyst, or sodium chlorate in the presence of ammonium metavanadate

Regulatory status

Inventories, regulations and trade controls that list this substance

Europe

  • EU harmonised classification (CLP Annex VI)
    Index no: 611-028-00-3

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 Azodicarbonamide is traded under.

HS 2927.00Indicative HS code

Diazo-, azo- or azoxy compounds

World exports in 2024
$571M
+6.1% vs 2023, imports $525M
2019 to 2024
Top exporters
  1. China47.0%
  2. Indonesia13.1%
  3. Japan9.3%
Top importers
  1. United States10.2%
  2. India * partner reported9.1%
  3. South Korea9.1%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Azodicarbonamide?

Azodicarbonamide is an organic molecular entity.

What is the CAS number of Azodicarbonamide?

The CAS registry number of Azodicarbonamide is 123-77-3.

What is the molecular formula and weight of Azodicarbonamide?

The molecular formula of Azodicarbonamide is C2H4N4O2 and its molar mass is 116.08 g/mol.

What is Azodicarbonamide used for?

Blowing agent for synthetic and natural rubber & ethylene-vinyl acetate copolymers, for Poly(vinylchloride) compounds and thermoplastic urethane elastomers, for polyolefin resins, acrylic & acetal polymers & polyethylene, for acrylonitrile-butadiene-styrene resins and high impact polystyrene sheeting.

Is Azodicarbonamide hazardous?

Azodicarbonamide carries the GHS signal word "Danger". Main hazards: may cause allergy or asthma symptoms or breathing difficulties if inhaled. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Azodicarbonamide?

Azodicarbonamide is usually classified under HS code 292700 (Diazo-, azo- or azoxy-compounds). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Azodicarbonamide?

CompoundList lists 52 suppliers of Azodicarbonamide in China, United States, India, Turkey and 8 more. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

Where can I buy Azodicarbonamide in India?

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

What is the price of Azodicarbonamide?

Suppliers quote Azodicarbonamide 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 Azodicarbonamide

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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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