Provenance

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

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Substance profile

Benzenesulfonic acid, 2,4-diamino-5-(2-(4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)diazenyl)-

Benzenesulfonic acid, 2,4-diamino-5-(2-(4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)diazenyl)- is a substance with a harmonised classification under EU CLP.

CAS 27624-67-5 Danger

01 · Identification

What Benzenesulfonic acid… is

Benzenesulfonic acid, 2,4-diamino-5-(2-(4-((2-(sulfooxy)ethyl)sulfonyl)phenyl)diazenyl)- is a substance with a harmonised classification under EU CLP.

Under the GHS it carries the signal word Danger.

02 · Identifiers

Benzenesulfonic acid… identifiers and molecular data

Benzenesulfonic acid… CAS number and EC number

CAS number27624-67-5
EC number424-870-1
Index number (CLP Annex VI)607-554-00-8

Other names for Benzenesulfonic acid…

  • 2,4-diamino-5-[4-[(2-sulfoxyl ethyl)sulfonyl]phenylazo]benzenesulfonic acid

03 · GHS classification

Benzenesulfonic acid… hazard classification

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

Benzenesulfonic acid… pictograms and signal word

Signal wordDanger

Benzenesulfonic acid… hazard class and category

GHS hazard classes Benzenesulfonic acid… falls into
Hazard class Category From code Pictogram
Explosives GHS chapter 2.1 Category 1.1 H201 GHS01
Serious eye damage/eye irritation GHS chapter 3.3 Category 1 H318 GHS05
Hazardous to the aquatic environment - chronic GHS chapter 4.1 Category 3 H412

Benzenesulfonic acid… hazard statements (H-codes)

Hazard statements assigned to Benzenesulfonic acid…
CodeHazard statement
H201 Explosive; mass explosion hazard.
H318 Causes serious eye damage.
H412 Harmful to aquatic life with long lasting effects.

This page lists only the codes assigned to Benzenesulfonic acid…. 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 Benzenesulfonic acid…

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 Benzenesulfonic acid… 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

Benzenesulfonic acid… precautionary statements

CLP Annex VI assigns 7 precautionary statements to Benzenesulfonic acid…. 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.

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

Benzenesulfonic 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 2,4-диамино-5-[4-[(2-сулфоксилетил)сулфонил]фенилазо]бензенсулфонова киселина
Spanish español Ácido 2,4-diamino-5-[4-[(2-sulfoxil etil)sulfonil]fenilazo]bencenosulfónico
Czech čeština 2,4-diamino-5-[4-[(2-sulfoxyl ethyl)sulfonyl]fenylazo]benzensulfonová kyselina
Danish dansk 2,4-diamino-5-[4-[(2-sulfoxylethyl)sulfonyl]phenylazo]benzensulfonsyre
German Deutsch 2,4-Diamino-5-[4-[(2-sulfoxylethyl)sulfonyl]phenylazo]benzolsulfonsäure
Estonian eesti 2,4-diamino-5-[4-[(2-sulfoksüületüül)sulfonüül]fenüülaso]benseensulfoonhape
Greek ελληνικά 2,4-διαμινo-5-[4-[(2-σoυλφoξυλαιθυλo)σoυλφoνυλo]φαινυλαζω]βενζoλoσoυλφoνικό oξύ
English English 2,4-diamino-5-[4-[(2-sulfoxyl ethyl)sulfonyl]phenylazo]benzenesulfonic acid
French français acide 2,4-diamino-5-[4-[(2-sulfoxyl éthyl)sulfonyl]phénylazo]benzènesulfonique
Croatian hrvatski 2,4-diamino-5-[4-[(2-sulfoksiletil)sulfonil]fenilazo]benzensulfonska kiselina
Italian italiano acido 2,4-diammino-5-[4-[(2-solfossil etil)solfonil]fenilazo] benzensolfonico
Latvian latviešu 2,4-diamino-5-[4-[(2-sulfoksiletil)sulfonil]fenilazo]benzolsulfonskābe
Lithuanian lietuvių 2,4-diamino-5-[4-[(2-sulfoksil etil)sulfonil]fenilazo]benzensulfonrūgštis
Hungarian magyar 2,4-diamino-5-[4-[(2-szulfoxiletil)szulfonil]fenilazo]benzolszulfonsav
Maltese Malti aċidu 2,4-diammino-5-[4-[(2-sulfossil etil)sulfonil]fenilażo]benżenesulfoniku
Dutch Nederlands 2,4-diamino-5-[4-[(2-sulfoxylethyl)sulfonyl]fenylazo]benzeensulfonzuur
Polish polski kwas 2,4-diamino-5-[4-[(2-sulfoksylo etylo)sulfonylo]fenyloazo]benzenosulfonowy
Portuguese português ácido 2,4-diamino-5-[4-[(2-sulfoxiletil)sulfonil]fenilazo]benzenossulfónico
Romanian română acid 2,4-diamino-5-[4-[(2-sulf-oxil etil)sulfonil]fenilazo]benzen sulfonic
Slovak slovenčina kyselina 2,4-diamino-5-{4-[(2- sulfoxyetyl)sulfonyl]fenyldiazenyl}benzénsulfónová
Slovenian slovenščina 2,4-diamino-5-[4-[(2-sulfoksil etil)sulfonil]fenilazo]benzensulfonska kislina
Finnish suomi 2,4-diamino-5-[4-[(2-sulfoksyylietyyli)sulfonyyli]fenyyliatso]bentseenisulfonihappo
Swedish svenska 2,4-diamino-5-[4-[(2-sulfoxyletyl)sulfonyl]fenylazo]bensensulfonsyra

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

Benzenesulfonic acid… GHS label elements

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

GHS01 Exploding bomb pictogramGHS05 Corrosion pictogram

Danger

Benzenesulfonic acid…

  • Explosive; mass explosion hazard.
  • Causes serious eye damage.
  • Harmful to aquatic life with long lasting effects.
  • Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
  • Avoid release to the environment.
  • Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/
  • IF IN EYES:
  • Immediately call a POISON CENTER/doctor/
  • Remove contact lenses, if present and easy to do. Continue rinsing.
  • Dispose of contents/container to

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

Need this as an actual label? Open Benzenesulfonic acid… in the GHS label constructor →

07 · Questions

Benzenesulfonic acid… — frequently asked questions

What is the CAS number of Benzenesulfonic acid…?

The CAS number of Benzenesulfonic acid… is 27624-67-5. Its EC number is 424-870-1.

What does a Benzenesulfonic acid… label have to show?

Under CLP Annex VI the label for Benzenesulfonic acid… carries the pictograms Exploding bomb and Corrosion and the signal word is Danger.

Is Benzenesulfonic acid… flammable?

CLP Annex VI assigns Benzenesulfonic 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 Benzenesulfonic acid… a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Benzenesulfonic 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.

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