Provenance

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

Build a label

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.

CAS number80-51-3
EC number201-286-1
Index number607-758-00-7
Molecular formulaC12H14N4O5S2
Molecular weight358.4 g/mol

02 · GHS classification

Hazards and label elements

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

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

Precautionary statements: P273, P391, P501

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.

03 · 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.

Property Value Conditions Source
Melting point 155 °C (311 °F) range, midpoint shown HSDB
Density 1.52 g/cm³ HSDB
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.

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.

Get the free GHS / CLP / OSHA deadline calendar

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