Summary of Classification and Labelling
Notified classification and labelling
General Information
EC / List no.

EC: European Community number/ List no.: List number assigned by ECHA.

List Numbers are purely technical identifiers for processing a submission via REACH-IT. More information: https://echa.europa.eu/information-on-chemicals/registered-substances/information

Name CAS Number
The CAS number associated with this substance in the EC Inventory and/or REACH-IT is reported here. In some cases, e.g. for differently hydrated forms of the same substance, alternative CAS numbers have been notified. In those cases, the additional CAS numbers are published in the column “additional notified information” below.
201-286-1 4,4'-oxydi(benzenesulphonohydrazide) 80-51-3

Notified classification and labelling according to CLP criteria
Classification Labelling Specific Concentration limits, M-Factors Notes Classification affected by Impurities / Additives

This check appears when a notifier has indicated that an impurity or an additive present in the substance impacts the notified classification. ECHA cannot reveal the identity of the impurity/additive or determine the exact impact it has on the classification.

Additional Notified Information

State/form: The notified state/form of the substance for all notifications classifying in this manner is reported under this link. Additional CAS number(s): Occasionally, a notification contains a different CAS number than the one reported under the general information section above. In those cases, all different notified CAS numbers associated with the aggregated classification are reported under this link. IUPAC name(s): Publicly available IUPAC names from all notifications classifying in this manner are reported under this link.

Number of Notifiers

This number indicates how many companies notified this classification. All members of a REACH registration joint submission and all participants in a group of manufacturers/importers who notified are counted. The grouping is done automatically with no manual verification.

Joint Entries

This check appears when a classification comes from a lead dossier of a REACH registration joint submission. When a member submits a classification separately under Article 11(3) of REACH (opt-out), this classification is displayed separately and not marked as a joint entry.

Hazard Class and Category Code(s) Hazard Statement Code(s) Hazard Statement Code(s) Supplementary Hazard Statement Code(s) Pictograms, Signal Word Code(s)
Acute Tox. 4 H302 H302 GHS09
GHS08
GHS07
Wng
M(Chronic)=1
State/Form
IUPAC Names
21 yes View details
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Muta. 2 H341 H341
STOT RE 2 H373 (kidneys) H373
Aquatic Chronic 1 H410 H410
Skin Irrit. 2 H315 H315 GHS09
GHS08
GHS07
Wng
State/Form
IUPAC Names
46 View details
Eye Irrit. 2 H319 H319
STOT SE 3 H335 (unknown) H335
Muta. 2 H341 H341
Aquatic Chronic 2 H411 H411
Flam. Sol. 1 H228 H228 GHS02
Dgr
IUPAC Names 36 View details
Flam. Sol. 1 H228 H228 EUH044
GHS02
GHS07
Dgr
State/Form
IUPAC Names
33 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Eye Irrit. 2 H319 H319
Acute Tox. 4 H332 H332
STOT SE 3 H335 (unknown) H335
Self-react. D H242 H242 GHS02
GHS09
GHS08
GHS07
Dgr
State/Form
IUPAC Names
31 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Muta. 2 H341 H341
Aquatic Chronic 2 H411 H411
  H228 EUH044
GHS02
GHS08
GHS07
Dgr
State/Form
IUPAC Names
20 View details
Self-react. D H242  
Skin Irrit. 2 H315 H315
Eye Irrit. 2 H319 H319
Resp. Sens. 1 H334 H334
  H335
Flam. Sol. 1 H228 H228 GHS02
GHS07
Dgr
IUPAC Names 18 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Eye Irrit. 2 H319 H319
Acute Tox. 4 H332 H332
STOT SE 3 H335 (Respiratory tra...) H335
Self-react. D H242 H242 GHS02
GHS09
GHS08
GHS07
Dgr
IUPAC Names 10 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
STOT RE 2 H373 (Kidneys) H373
Aquatic Chronic 1 H410 H410
Not Classified               8  
Acute Tox. 4 H302 H302 GHS09
GHS08
GHS07
Wng
State/Form
IUPAC Names
6 View details
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Muta. 2 H341 H341
Aquatic Chronic 2 H411 H411
  NA State/Form
4 View details
Flam. Sol. 2 H228 H228 EUH044
GHS02
GHS08
State/Form
IUPAC Names
4 View details
Skin Sens. 1 H317 H317
Resp. Sens. 1 H334 H334
Flam. Sol. 1 H228 H228 GHS02
GHS09
GHS08
GHS07
Dgr
State/Form
IUPAC Names
2 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
STOT SE 3 H335 (Respiratory sys...) H335
Muta. 2 H341 H341
Aquatic Chronic 2 H411 H411
Self-react. D H242 H242 GHS02
GHS07
Dgr
State/Form
IUPAC Names
2 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Eye Irrit. 2 H319 H319
STOT SE 3 H335 (Not Specified) H335
Skin Irrit. 2 H315 H315 GHS07
Dgr
State/Form
IUPAC Names
2 View details
Eye Irrit. 2 H319  
STOT SE 3 H335 (respiratory tra...) (Inhalation)  
Flam. Sol. 1 H228 H228 EUH044
Dgr
State/Form
IUPAC Names
1 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Eye Irrit. 2 H319 H319
STOT SE 3 H335 (respiratory sys...) (Inhalation) H335
Flam. Sol. 1 H228 H228 GHS02
GHS07
Dgr
State/Form
IUPAC Names
1 View details
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Acute Tox. 4 H332 H332
STOT SE 3 H335 (Not Specified) H335
Aquatic Chronic 3 H412 H412
Flam. Sol. 2 H228 H228 GHS02
GHS09
GHS08
GHS07
Dgr
IUPAC Names 1 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Eye Irrit. 2 H319 H319
Acute Tox. 4 H332 H332
Resp. Sens. 1 H334 H334
STOT SE 3 H335 (Respiratory Sys...) (Inhalation) H335
Aquatic Chronic 2 H411 H411
Acute Tox. 4 H302 H302 EUH044
GHS07
Wng
IUPAC Names 1 View details
Eye Irrit. 2 H319 H319
STOT SE 3 H335 (x) H335
Flam. Sol. 1 H228 H228 EUH044
GHS02
GHS08
GHS07
Dgr
State/Form
IUPAC Names
1 View details
Self-react. D H242 H242
Skin Irrit. 2 H315 H315
Eye Irrit. 2 H319 H319
Resp. Sens. 1 H334 H334
STOT SE 3 H335 (Respiratory sys...) (Inhalation) H335
Flam. Sol. 1 H228 H228 GHS02
GHS09
GHS08
State/Form
IUPAC Names
1 View details
Acute Tox. 4 H302 H302
Eye Irrit. 2 H319 H319
Resp. Sens. 1 H334 H334
STOT SE 2 H371 (nervi) (Inhalation) H371
Aquatic Chronic 2 H411 H411
Flam. Liq. 2 H225 H225 GHS02
GHS07
Dgr
IUPAC Names 1 View details
Acute Tox. 4 H302 H302
  H228 EUH044
GHS02
GHS08
Dgr
1 View details
  H334
Skin Irrit. 2 H315 H315 (H319, H335) GHS07
Wng
State/Form
IUPAC Names
1 View details
Eye Irrit. 2 H319  
STOT SE 3 H335 (.)  
Unst. Expl. H200 H200 GHS09
GHS01
GHS08
GHS07
Dgr
State/Form
1 View details
Flam. Sol. 1 H228 H228
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Muta. 2 H341 H341
Aquatic Chronic 2 H411 H411
Self-react. D H242 H242 GHS02
GHS09
GHS08
GHS07
Dgr
M(Chronic)=1
IUPAC Names 1 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Muta. 2 H341 H341
Aquatic Chronic 1 H410 H410
Acute Tox. 4 H302 H302 GHS08
GHS07
Wng
1 View details
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
STOT RE 2 H373 (Kidneys) (oral and inhala...) H373
Org. Perox. D H242 H242 GHS02
GHS09
GHS08
GHS07
Dgr
State/Form
1 View details
Acute Tox. 4 H302 H302
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Muta. 2 H341 H341
STOT RE 2 H373 (kidneys) H373
Aquatic Chronic 1 H410 H410

Number of Aggregated Notifications: 28