Substance profile
Aniline
Aniline is an oily liquid; colorless when freshly distilled, darkens on exposure to air and light with a hedonic tone; pungent odor.
01 · Identification
What Aniline is
Aniline is an oily liquid; colorless when freshly distilled, darkens on exposure to air and light with a hedonic tone; pungent odor. Its molecular formula is C6H7N and its molecular weight is 93.13 g/mol. It boils at 184 °C, melts at -6 °C.
Under the GHS it carries the signal word Danger. It is classed as hazardous Air Pollutants (HAPs).
02 · Identifiers
Aniline identifiers and molecular data
Aniline CAS number and EC number
Aniline molecular formula and molecular weight
Other names for Aniline
- aminobenzene
- phenylamine
- Aminophen
- Aniline (And Homologs)
- Aniline Oil
- Aniline Oil, Liquid
- Anyvim
- Arylamine
- Benzenamine
- Benzene, Amino
- Benzene, Amino-
- Benzidam
- Blue Oil
- C.I. 76000
03 · GHS classification
Aniline hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Aniline pictograms and signal word
Aniline hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 3 | H301 | GHS06 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 3 | H311 | GHS06 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 3 | H331 | GHS06 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 1 | H318 | GHS05 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Germ cell mutagenicity GHS chapter 3.5 | Category 2 | H341 | GHS08 |
| Carcinogenicity GHS chapter 3.6 | Category 2 | H351 | GHS08 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 1 | H372 | GHS08 |
| Hazardous to the aquatic environment - acute GHS chapter 4.1 | Category 1 | H400 | GHS09 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Aniline hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H341 | Suspected of causing genetic defects <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H331 | Toxic if inhaled. |
| H311 | Toxic in contact with skin. |
| H301 | Toxic if swallowed. |
| H372 | Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H318 | Causes serious eye damage. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
This page lists only the codes assigned to Aniline. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
Safety Data Sheet
Getting an SDS for Aniline
Our own Aniline safety data sheet walks through all sixteen sections of the published data. What it is not is the document an inspector asks for: an SDS is issued for a product by its supplier, so the sheet covering the grade actually standing in your store exists only in that supplier’s version. Collecting those and keeping them current as suppliers revise them is a separate job.
04 · Precautionary statements
Aniline precautionary statements
CLP Annex VI assigns 22 precautionary statements to Aniline. They are grouped the way a label groups them: what to do before handling, what to do when something has already happened, how to store it and how to dispose of it.
Prevention
What to do before and during handling so the hazard never happens.
Response
What to do once exposure, spillage or fire has already happened.
Disposal
What has to happen to the contents and the empty container.
Reading the notation. … is a blank the supplier fills in — not a truncated sentence.· [square brackets] mark a part printed only when it applies.
05 · Names in the regulation
Aniline name in 23 EU languages
CLP Annex VI Part 3 is published in every language edition of the regulation, and the identification column is written out in each of them. Nothing below is translated by us: each line is the name as that edition prints it. Under Art. 18(2) the substance name from Annex VI is a lawful product identifier, so this is the wording to put on a label going to that market — and where the cell lists several designations, any one of them qualifies.
| Language | Name in CLP Annex VI Part 3 |
|---|---|
| Bulgarian български | анилин |
| Spanish español | Anilina |
| Czech čeština | anilin |
| Danish dansk | anilin |
| German Deutsch | Anilin |
| Estonian eesti | aniliin |
| Greek ελληνικά | ανιλίνη |
| English English | niline |
| French français | aniline |
| Croatian hrvatski | anilin |
| Italian italiano | anilina |
| Latvian latviešu | anilīns |
| Lithuanian lietuvių | anilinas |
| Hungarian magyar | anilin |
| Maltese Malti | nilina |
| Dutch Nederlands | aniline |
| Polish polski | anilina |
| Portuguese português | anilina |
| Romanian română | anilină |
| Slovak slovenčina | anilín |
| Slovenian slovenščina | anilin |
| Finnish suomi | aniliini |
| Swedish svenska | nilin |
All 23 language editions of Annex VI carry this entry. Irish is the twenty-fourth official EU language and has no line here for a different reason: no consolidated CLP text has ever been published in Irish, so there is no Irish edition of Annex VI to quote a name from. Source: consolidated CLP, CELEX 02008R1272, language editions. © European Union, https://eur-lex.europa.eu — only the electronic Official Journal of the European Union is authentic.
06 · Label elements
Aniline GHS label elements
Everything CLP Annex VI fixes for Aniline, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Aniline
- Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Suspected of causing genetic defects <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Toxic if inhaled.
- Toxic in contact with skin.
- Toxic if swallowed.
- Causes damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Causes serious eye damage.
- May cause an allergic skin reaction.
- Very toxic to aquatic life.
- Obtain special instructions before use.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Use only outdoors or in a well-ventilated area.
- Contaminated work clothing should not be allowed out of the workplace.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF ON SKIN:
- IF INHALED:
- IF IN EYES:
- IF exposed or concerned:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention.
- Get medical advice/attention if you feel unwell.
- Rinse mouth.
- If skin irritation or rash occurs:
- Remove contact lenses, if present and easy to do. Continue rinsing.
- Wash with plenty of water/…
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Aniline in the GHS label constructor →
07 · Health hazards
Aniline health hazards and exposure limits
Aniline hazard summary
Aniline is a clear to slightly yellow liquid with a characteristic odor. It does not readily evaporate at room temperature. Aniline is slightly soluble in water and mixes readily with most organic solvents. Aniline is used to make a wide variety of products such as polyurethane foam, agricultural chemicals, synthetic dyes, antioxidants, stabilizers for the rubber industry, herbicides, varnishes and explosives
Source: Agency for Toxic Substances and Disease Registry (ATSDR)
Aniline carcinogenicity classification
Classification of carcinogenicity: Overall summary evaluation of carcinogenic risk to humans is Group 3: The agent is not classifiable as to its carcinogenicity to humans.
Source: Hazardous Substances Data Bank (HSDB)
CLASSIFICATION: B2; probable human carcinogen. BASIS FOR CLASSIFICATION: Induction of tumors of the spleen and the body cavity in two strains of rat, and some supporting toxicological evidence. HUMAN CARCINOGENICITY DATA: Inadequate. ANIMAL CARCINOGENICITY DATA: Sufficient. /Based on former classification system/
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
Aniline occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 5.0 [ppm] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | 5 ppm (19 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| PEL | TWA 5 ppm (19 mg/m3) [skin] See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | Ca See Appendix A | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 100 ppm ; A potential occupational carcinogen. (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 100.0 [ppm] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | NIOSH considers aniline to be a potential occupational carcinogen. [100 ppm] | Hazardous Substances Data Bank (HSDB) |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
Aniline properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
Aniline boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 184.1 °C (363.4 °F) | HSDB | |
| 183.89 °C (363 °F) | NIOSH | ||
| 184 °C (363.2 °F) | ICSC |
Aniline melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | -6 °C (21.2 °F) | HSDB | |
| -6.11 °C (21 °F) | NIOSH |
Aniline density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.02 g/cm³ | NIOSH | |
| 1.0217 g/cm³ | at 20 °C | HSDB | |
| 1.022 g/cm³ | at 20 °C | CAMEO |
Aniline solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | One gram dissolves in 28.6 mL water, 15.7 mL boiling water | HSDB | |
| In water, 36,000 mg/L at 25 °C | at 25 °C | HSDB | |
| 3.5 parts/100 parts water at 25 °C; 6.4 parts/100 parts water at 90 °C | at 25 °C | HSDB |
Aniline vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.6 mmHg | NIOSH | |
| 0.667 mmHg | at 25 °C | HSDB | |
| 0.67 mmHg | at 25 °C | CAMEO |
Aniline flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 70 °C (158 °F) | HSDB | |
| 76.11 °C (169 °F) | HSDB |
Aniline autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 615 °C (1139 °F) | HSDB | |
| 630 °C (1166 °F) | ICSC |
Aniline lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | 1.3 % by volume | HSDB |
Aniline upper explosive limit (UEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Upper explosive limit (UEL) | 11 % by volume | HSDB | |
| 22.5 % by volume | CAMEO |
Aniline vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 3.3 (air = 1) | HSDB | |
| 3.22 (air = 1) | CAMEO | ||
| 3.2 (air = 1) | ICSC |
Aniline odor threshold
| Property | Value | Conditions | Source |
|---|---|---|---|
| Odor threshold | Human odor perception: Nonperception: 0.34 mg/cu m, Perception: 0.37 mg/cu m | HSDB | |
| 0.58 - 10 ppm | HSDB |
Aniline critical temperature and pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Critical temperature and pressure | 430.85 °C (807.5 °F) | HSDB | |
| 425.61 °C (798.1 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Fire and explosion
Aniline fire and explosion behaviour
These are descriptions rather than measured values, so they are kept out of the table above and quoted here with the source that reported them.
Aniline fire potential
A combustible liquid when exposed to heat or flame.
Source: Hazardous Substances Data Bank (HSDB)
Odor
Its aromatic or fishy odor can generally be perceived at 1 ppm which is below established occupational safety limits (OSHA PEL-TWA is 5 ppm), and thus, odor usually provides an adequate indication of hazardous concentrations.
Source: HSDB
10 · Handling and storage
Aniline storage and handling
Aniline reactive group
CAMEO Chemicals places Aniline in the reactive group Amines, Aromatic. Compatibility with other chemicals is worked out from the group, not from the individual substance — which is why two substances you have never seen react can still be flagged as a pair that must be separated.
A reactive group is a CAMEO Chemicals (US NOAA) grouping, not a GHS hazard class: it has no code, no category and no legal force. It is what the storage compatibility matrix on this site computes from.
Aniline safe storage
Separated from strong oxidants, strong acids and food and feedstuffs. Well closed. Provision to contain effluent from fire extinguishing. Store in an area without drain or sewer access.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Aniline storage conditions
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Source: Hazardous Substances Data Bank (HSDB)
Aniline incompatible materials
Incompatible materials: Oxidizing agents, iron and iron salts, zinc.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Aniline in the storage compatibility matrix →
11 · Transport
Aniline UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Aniline under UN 1547 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| ANILINE | 6.1 | T1 | II | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 6.1 is “Toxic substances” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Aniline | 6.1 | II | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 6.1 is “Poisonous materials” (49 CFR 173.2).
12 · Questions
Aniline — frequently asked questions
What is the CAS number of Aniline?
The CAS number of Aniline is 62-53-3. Its EC number is 200-539-3.
What is the chemical formula of Aniline?
The molecular formula of Aniline is C6H7N and its molecular weight is 93.13 g/mol.
What does a Aniline label have to show?
Under CLP Annex VI the label for Aniline carries the pictograms Skull and crossbones, Health hazard, Corrosion and Environment and the signal word is Danger.
Is Aniline flammable?
CLP Annex VI assigns Aniline no flammability hazard class. That is not a statement that it cannot burn: the harmonised list only records the hazards that were assessed for it. The flash point reported for it is 70 °C (158 °F) (HSDB).
Is Aniline a carcinogen?
CLP Annex VI assigns Aniline H351 — suspected of causing cancer. That is category 2: the evidence points that way but is not conclusive. IARC places it in Group 2A: probably carcinogenic to humans.
What is the exposure limit for Aniline?
The US occupational exposure limit reported for Aniline is 5.0 [ppm] (Haz-Map, Information on Hazardous Chemicals and Occupational Diseases). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the boiling point of Aniline?
The boiling point reported for Aniline is 184.1 °C (363.4 °F) (HSDB).
What is the melting point of Aniline?
The melting point reported for Aniline is -6 °C (21.2 °F) (HSDB).
How should Aniline be stored?
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Aniline
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