Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

Build a label

Substance profile

3-Aminobenzenesulfonic acid

3-aminobenzene sulfonic acid appears as white powder.

CAS 121-47-1 Warning

01 · Identification

What 3-Aminobenzenesulfonic acid is

3-aminobenzene sulfonic acid appears as white powder.

Under the GHS it carries the signal word Warning.

02 · Identifiers

3-Aminobenzenesulfonic acid identifiers and molecular data

3-Aminobenzenesulfonic acid CAS number and EC number

CAS number121-47-1
EC number204-473-6
Index number (CLP Annex VI)612-013-00-4

Other names for 3-Aminobenzenesulfonic acid

  • 3-aminobenzene sulphonic acid
  • metanilic acid

03 · GHS classification

3-Aminobenzenesulfonic acid hazard classification

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

3-Aminobenzenesulfonic acid pictograms and signal word

Signal wordWarning

3-Aminobenzenesulfonic acid hazard class and category

GHS hazard classes 3-Aminobenzenesulfonic… falls into
Hazard class Category From code Pictogram
Acute toxicity - oral GHS chapter 3.1 Category 4 H302 GHS07
Acute toxicity - dermal GHS chapter 3.1 Category 4 H312 GHS07
Acute toxicity - inhalation GHS chapter 3.1 Category 4 H332 GHS07

3-Aminobenzenesulfonic acid hazard statements (H-codes)

Hazard statements assigned to 3-Aminobenzenesulfonic…
CodeHazard statement
H332 Harmful if inhaled.
H312 Harmful in contact with skin.
H302 Harmful if swallowed.

This page lists only the codes assigned to 3-Aminobenzenesulfonic…. 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 3-Aminobenzenesulfonic…

A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of 3-Aminobenzenesulfonic… issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.

04 · Precautionary statements

3-Aminobenzenesulfonic acid precautionary statements

CLP Annex VI assigns 10 precautionary statements to 3-Aminobenzenesulfonic…. 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.

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

3-Aminobenzenesulfonic acid 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 3-аминобензенсулфонова киселина метанилова киселина
Spanish español Ácido 3-aminobenceno-sulfónico ácido metanílico
Czech čeština 3-aminobenzensulfonová kyselina metanilová kyselina
Danish dansk 3-aminobenzensulfonsyre metanilsyre
German Deutsch 3-Aminobenzolsulfonsäure Metanilsäure
Estonian eesti 3-aminobenseensulfoonhape metaniilhape
Greek ελληνικά 3-αμινοβενζολοσουλφονικό οξύ μετανιλικό οξύ
English English 3-aminobenzene sulphonic acid metanilic acid
French français acide 3-aminobenzènesulfonique acide métanilique
Croatian hrvatski 3-aminobenzensulfonska kiselina metanilna kiselina
Italian italiano acido-3-amino-benzensolfonico
Latvian latviešu 3-aminobenzolsulfonskābe metanilskābe
Lithuanian lietuvių 3-aminobenzensulfonrūgštis metanilo rūgštis
Hungarian magyar 3-aminobenzolszulfonsav metanilsav
Maltese Malti aċidu 3-amminobenżen sulfoniku aċidu metaniliku
Dutch Nederlands 3-aminobenzeensulfonzuur metanilzuur
Polish polski kwas 3-aminobenzenosulfonowy kwas metanilowy
Portuguese português ácido 3-aminobenzenossulfónico ácido metanílico
Romanian română acid 3-aminobenzensulfonic acid metanilic
Slovak slovenčina kyselina 3-aminobenzénsulfónová kyselina metanilová
Slovenian slovenščina 3-aminobenzensulfonska kislina metanilna kislina
Finnish suomi metaniilihappo 3-aminobentseenisulfonihappo
Swedish svenska 3-aminobensensulfonsyra metanilsyra

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

3-Aminobenzenesulfonic acid GHS label elements

Everything CLP Annex VI fixes for 3-Aminobenzenesulfonic…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.

GHS07 Exclamation mark pictogram

Warning

3-Aminobenzenesulfonic acid

  • Harmful if inhaled.
  • Harmful in contact with skin.
  • Harmful if swallowed.
  • Do not breathe 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.
  • Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/
  • IF SWALLOWED:
  • IF ON SKIN:
  • IF INHALED:
  • Call a POISON CENTER/doctor/ if you feel unwell.
  • Rinse mouth.
  • Wash with plenty of water/

Supplier name, address and telephone number· Product identifier·Nominal quantity

Need this as an actual label? Open 3-Aminobenzenesulfonic… in the GHS label constructor →

07 · Health hazards

3-Aminobenzenesulfonic acid health hazards and exposure limits

3-Aminobenzenesulfonic acid hazard summary

Increased water consumption (males) and decreased urinary pH (both sexes) observed in 28-day oral study of rats at the highest tested dose (1,000 mg/kg/day); [JECDB] A mild eye irritant; [RTECS] A skin and mucous membrane irritant; [NTP] An eye irritant; Harmful by ingestion, inhalation, and skin absorption; [Sigma-Aldrich MSDS]

Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

08 · Physical and chemical properties

3-Aminobenzenesulfonic acid 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.

3-Aminobenzenesulfonic acid melting point

Property Value Conditions Source
Melting point Decomposes without melting (NTP, 1992) decomposes CAMEO

3-Aminobenzenesulfonic acid density

Property Value Conditions Source
Density 1.69 g/cm³ CAMEO

3-Aminobenzenesulfonic acid solubility

Property Value Conditions Source
Solubility less than 1 mg/mL at 72 °F (NTP, 1992) at 22.22 °C CAMEO

3-Aminobenzenesulfonic acid vapor pressure

Property Value Conditions Source
Vapor pressure 2e-7 mmHg Haz-Map

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

09 · Handling and storage

3-Aminobenzenesulfonic acid storage and handling

3-Aminobenzenesulfonic acid reactivity

3-AMINOBENZENE SULFONIC ACID is an amino acid. Reacts weakly with both acids and bases.

Source: CAMEO Chemicals

Planning storage for a mix of chemicals? Check 3-Aminobenzenesulfonic… in the storage compatibility matrix →

10 · Questions

3-Aminobenzenesulfonic acid — frequently asked questions

What is the CAS number of 3-Aminobenzenesulfonic acid?

The CAS number of 3-Aminobenzenesulfonic acid is 121-47-1. Its EC number is 204-473-6.

What does a 3-Aminobenzenesulfonic acid label have to show?

Under CLP Annex VI the label for 3-Aminobenzenesulfonic acid carries the pictogram Exclamation mark and the signal word is Warning.

Is 3-Aminobenzenesulfonic acid flammable?

CLP Annex VI assigns 3-Aminobenzenesulfonic acid 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.

Is 3-Aminobenzenesulfonic acid a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for 3-Aminobenzenesulfonic acid. Annex VI is a list of agreed classifications, not a list of substances found safe, so this is an absence of a classification rather than a clean bill of health.

What is the melting point of 3-Aminobenzenesulfonic acid?

The melting point reported for 3-Aminobenzenesulfonic acid is Decomposes without melting (NTP, 1992), decomposes (CAMEO).

Nearby

Substances next to 3-Aminobenzenesulfonic…

Keep going: substances starting with 0–9, or search the whole database by name, CAS number, pictogram or signal word.

Get the free GHS / CLP / OSHA deadline calendar

Verified 2026–2029 compliance dates in one PDF — plus alerts when the rules change.