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

4,4'-oxydi(benzenesulphonohydrazide)

4,4'-oxydi(benzenesulphonohydrazide) is a fine white crystalline powder and is odorless.

CAS 80-51-3 C12H14N4O5S2 358.4 g/mol Danger

01 · Identification

What 4,4'-oxydi(benzenesulphonohydr… is

4,4'-oxydi(benzenesulphonohydrazide) is a fine white crystalline powder and is odorless. Its molecular formula is C12H14N4O5S2 and its molecular weight is 358.4 g/mol. It melts at 155 °C.

Under the GHS it carries the signal word Danger.

02 · Identifiers

4,4'-oxydi(benzenesulphonohydr… identifiers and molecular data

4,4'-oxydi(benzenesulphonohydr… CAS number and EC number

CAS number80-51-3
EC number201-286-1
Index number (CLP Annex VI)607-758-00-7

4,4'-oxydi(benzenesulphonohydr… molecular formula and molecular weight

Molecular formulaC12H14N4O5S2
Molecular weight358.4 g/mol

03 · GHS classification

4,4'-oxydi(benzenesulphonohydr… hazard classification

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

4,4'-oxydi(benzenesulphonohydr… pictograms and signal word

Signal wordDanger

4,4'-oxydi(benzenesulphonohydr… hazard class and category

GHS hazard classes 4,4'-oxydi(benzenesulphono… falls into
Hazard class Category From code Pictogram
Organic peroxides or Self-reactive substances and mixtures Category Type C and D or Type E and F H242 GHS02
Hazardous to the aquatic environment - acute GHS chapter 4.1 Category 1 H400 GHS09
Hazardous to the aquatic environment - chronic GHS chapter 4.1 Category 1 H410 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.

4,4'-oxydi(benzenesulphonohydr… hazard statements (H-codes)

Hazard statements assigned to 4,4'-oxydi(benzenesulphono…
CodeHazard statement
H242 Heating may cause a fire.
H400 Very toxic to aquatic life.
H410 Very toxic to aquatic life with long lasting effects.

This page lists only the codes assigned to 4,4'-oxydi(benzenesulphono…. 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 4,4'-oxydi(benzenesulphono…

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 4,4'-oxydi(benzenesulp… 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

4,4'-oxydi(benzenesulphonohydr… precautionary statements

CLP Annex VI assigns 3 precautionary statements to 4,4'-oxydi(benzenesulphono…. 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

4,4'-oxydi(benzenesulphonohydr… 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 4,4′-оксиди(бензенсулфонохидразид)
Spanish español 4,4’-Oxidi(bencenosulfonohidrazida)
Czech čeština 4,4′-oxydi(benzensulfonohydrazid)
Danish dansk 4,4′-oxydi(benzensulfonhydrazid)
German Deutsch 4,4’-Oxydi(benzolsulfonohydrazid)
Estonian eesti 4,4’-oksüdi(benseensulfonohüdrasiid)
Greek ελληνικά 4,4’-οξυδι(βενζολοσουλφονοϋδραζίδιο)
English English 4,4'-oxydi(benzenesulphonohydrazide)
French français 4,4’-oxydi(benzènesulfonohydrazide)
Croatian hrvatski 4,4’-oksidi(benzensulfonohidrazid)
Italian italiano 4,4′-ossidi(benzensolfonoidrazide)
Latvian latviešu 4,4′-oksidi(benzolsulfonohidrazīds)
Lithuanian lietuvių 4,4′-oksidi(benzensulfonhidrazidas)
Hungarian magyar 4,4′-oxidi(benzol-szulfonhidrazid)
Maltese Malti 4,4’-ossidi(benżensulfonoidrażid)
Dutch Nederlands 4,4'-oxydi(benzeensulfonohydrazide)
Polish polski 4,4’-oksydi(benzenosulfonohydrazyd)
Portuguese português 4,4’-oxidi(benzenossulfono-hidrazida)
Romanian română 4,4′-oxidi(benzensulfonohidrazidă)
Slovak slovenčina 4,4′-oxidi(benzensulfonohidrazidă)
Slovenian slovenščina 4,4’-oksidi(benzensulfonohidrazid)
Finnish suomi 4,4′-oksidi(bentseenisulfonohydratsidi)
Swedish svenska 4,4’-oxidi(bensensulfonohydrazid)

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

4,4'-oxydi(benzenesulphonohydr… GHS label elements

Everything CLP Annex VI fixes for 4,4'-oxydi(benzenesulphono…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.

GHS02 Flame pictogramGHS09 Environment pictogram

Danger

4,4'-oxydi(benzenesulphonohydr…

  • Heating may cause a fire.
  • Very toxic to aquatic life.
  • Very toxic to aquatic life with long lasting effects.
  • Avoid release to the environment.
  • Collect spillage.
  • Dispose of contents/container to

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

Need this as an actual label? Open 4,4'-oxydi(benzenesulphono… in the GHS label constructor →

07 · Physical and chemical properties

4,4'-oxydi(benzenesulphonohydr… 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.

4,4'-oxydi(benzenesulphonohydr… melting point

Property Value Conditions Source
Melting point 155 °C (311 °F) range, midpoint shown HSDB

4,4'-oxydi(benzenesulphonohydr… density

Property Value Conditions Source
Density 1.52 g/cm³ HSDB

4,4'-oxydi(benzenesulphonohydr… solubility

Property Value Conditions Source
Solubility Soluble in acetone; moderately soluble in ethanol and polyethylene glycols; insoluble in water and gasoline HSDB

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

08 · Fire and explosion

4,4'-oxydi(benzenesulphono… 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.

4,4'-oxydi(benzenesulphonohydr… fire potential

Not combustible.

Source: Hazardous Substances Data Bank (HSDB)

09 · Questions

4,4'-oxydi(benzenesulphonohydr… — frequently asked questions

What is the CAS number of 4,4'-oxydi(benzenesulphonohydr…?

The CAS number of 4,4'-oxydi(benzenesulphonohydr… is 80-51-3. Its EC number is 201-286-1.

What is the chemical formula of 4,4'-oxydi(benzenesulphonohydr…?

The molecular formula of 4,4'-oxydi(benzenesulphonohydr… is C12H14N4O5S2 and its molecular weight is 358.4 g/mol.

What does a 4,4'-oxydi(benzenesulphonohydr… label have to show?

Under CLP Annex VI the label for 4,4'-oxydi(benzenesulphonohydr… carries the pictograms Flame and Environment and the signal word is Danger.

Is 4,4'-oxydi(benzenesulphonohydr… flammable?

Yes. CLP Annex VI assigns 4,4'-oxydi(benzenesulphonohydr… H242 — heating may cause a fire.

Is 4,4'-oxydi(benzenesulphonohydr… a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for 4,4'-oxydi(benzenesulphonohydr…. 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 4,4'-oxydi(benzenesulphonohydr…?

The melting point reported for 4,4'-oxydi(benzenesulphonohydr… is 155 °C (311 °F), range, midpoint shown (HSDB).

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