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.
247-500-7 5-chloro-2-methyl-2H-isothiazol-3-one 26172-55-4

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. 3 H301   GHS09
GHS05
GHS07
GHS06
Dgr
IUPAC Names 474 View details
  H301+H311
Acute Tox. 3 H311  
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318 H318
STOT SE 3 H335 (nose, throat, a...) H335
Aquatic Acute 1 H400 H400
Acute Tox. 2 H300 H300 GHS09
GHS08
GHS06
GHS07
Dgr
State/Form
IUPAC Names
250 View details
Acute Tox. 2 H310 H310
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
99 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
GHS07
Dgr
91 View details
  H302
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Aquatic Acute 1 H400 H400
Acute Tox. 3 H301 H301 EUH071
GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
72 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Flam. Liq. 3 H226 H226 GHS02
GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
66 View details
Acute Tox. 3 H301 H301
Acute Tox. 2 H310 H310
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS06
Dgr
IUPAC Names 60 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Aquatic Chronic 4 H413 H413
Acute Tox. 3 H301 H301 GHS09
GHS08
GHS06
Dgr
State/Form
IUPAC Names
50 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317  
Acute Tox. 3 H331 H331
  H334
STOT SE 1 H370 (respiratory tra...) H370
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
44 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
GHS07
Dgr
State/Form
IUPAC Names
42 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
34 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Chronic 1 H410 H410
Acute Tox. 4 H302 H302 GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
32 View details
Acute Tox. 4 H312 H312
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
  H301 GHS09
GHS05
GHS06
GHS07
Dgr
State/Form
31 View details
  H311
  H314
  H317
  H318
  H335
  H400
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
29 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318  
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
29 View details
Acute Tox. 2 H310 H310
Skin Corr. 1C H314 H314
Skin Sens. 1A H317 H317
Eye Dam. 1 H318  
Acute Tox. 2 H330 H330
STOT SE 3 H335 (respiratory sys...) H335
Aquatic Acute 1 H400 H400
Aquatic Chronic 3 H412 H412
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS07
GHS06
Dgr
State/Form
IUPAC Names
24 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Skin Corr. 1B H314 H314 GHS09
GHS08
GHS05
Dgr
23 View details
Skin Sens. 1 H317 H317
Resp. Sens. 1 H334 H334
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Not Classified               20  
Skin Corr. 1B H314 H314 GHS05
GHS06
Dgr
IUPAC Names 18 View details
Skin Sens. 1 H317 H317
Eye Dam. 1 H318  
Aquatic Chronic 1 H410 H410
Acute Tox. 2 H300 H300 GHS09
GHS05
GHS06
Dgr
17 View details
Acute Tox. 2 H310 H310
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Aquatic Chronic 4 H413 H413
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
GHS07
Dgr
State/Form
IUPAC Names
17 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
14 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
  H301 Dgr
State/Form
14 View details
  H311
  H314
  H317
  H331
  H400
  H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
13 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1B H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
13 View details
Acute Tox. 2 H310 H310
Skin Corr. 1C H314 H314
Skin Sens. 1A H317 H317
Eye Dam. 1 H318  
Acute Tox. 2 H330 H330
STOT SE 3 H335 (repiratory syst...) H335
Aquatic Acute 1 H400 H400
Aquatic Chronic 3 H412 H412
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS07
GHS06
Dgr
State/Form
IUPAC Names
10 View details
Acute Tox. 2 H310 H310
Skin Corr. 1B H314 H314
Skin Sens. 1A H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
IUPAC Names 10 View details
Acute Tox. 2 H310 H310
Skin Corr. 1C H314 H314
Skin Sens. 1A H317 H317
Eye Dam. 1 H318  
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
Skin Irrit. 2; : .06 % ≤ C < .6 %
Skin Sens. 1; : C ≥ 0 %
Eye Irrit. 2; : .06 % ≤ C < .6 %
Skin Corr. 1B; : C ≥ .6 %
State/Form
IUPAC Names
8 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
Skin Sens. 1; : .0015 % ≤ C < 100 %
Eye Dam. 1; : .6 % ≤ C < 100 %
Eye Irrit. 2; : .06 % ≤ C < .6 %
Skin Irrit. 2; : .06 % ≤ C < .6 %
Skin Corr. 1C; : .6 % ≤ C < 100 %
Skin Corr. 1B; : .6 % ≤ C < 100 %
Skin Corr. 1; : .6 % ≤ C < 100 %


M=10
IUPAC Names 6 View details
Acute Tox. 3 H311 H311
Skin Corr. 1 H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318  
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
Skin Sens. 1; : C ≥ .0015 %
Eye Irrit. 2; : C ≥ .06 %
Skin Irrit. 2; : C ≥ .06 %
Skin Corr. 1B; : C ≥ .6 %
State/Form
IUPAC Names
5 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
5 View details
Acute Tox. 2 H310  
Skin Corr. 1C H314 H314
Skin Sens. 1A H317 H317
Eye Dam. 1 H318  
Acute Tox. 2 H330  
STOT SE 3 H335 (Respiratory sys...) H335
Aquatic Acute 1 H400 H400
Aquatic Chronic 3 H412 H412
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
State/Form
IUPAC Names
5 View details
Acute Tox. 3 H311 H311
Skin Corr. 1C H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
5 View details
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Aquatic Acute 1 H400 H400
Acute Tox. 4 H302 H302 GHS09
GHS06
Dgr
4 View details
Acute Tox. 4 H312 H312
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Skin Corr. 1B H314 H314 GHS05
GHS07
Dgr
IUPAC Names 2 View details
Skin Sens. 1 H317 H317
Aquatic Acute 1 H400 H400
  H410
Acute Tox. 4 H302   GHS07
Wng
State/Form
IUPAC Names
2 View details
  H302+H312+H332
Acute Tox. 4 H312  
Skin Irrit. 2 H315 H315
Skin Sens. 1 H317 H317
Eye Irrit. 2 H319 H319
Acute Tox. 4 H332  
STOT SE 3 H335 (Lungs) H335
Acute Tox. 3 H301   GHS09
GHS05
GHS07
GHS06
Dgr
2 View details
  H301+H311
Acute Tox. 3 H311  
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318 H318
STOT SE 3 H335 (nose) H335
Aquatic Acute 1 H400 H400
Acute Tox. 3 H301 H301 EUH071
GHS09
GHS05
GHS06
Dgr
Eye Irrit. 2; : .06 % ≤ C < .6 %
Skin Corr. 1; : .6 % ≤ C < 100 %
Skin Corr. 1C; : .6 % ≤ C < 100 %
Skin Corr. 1B; : .6 % ≤ C < 100 %
Skin Irrit. 2; : .06 % ≤ C < .6 %
Eye Dam. 1; : .6 % ≤ C < 100 %
Skin Sens. 1; : .0015 % ≤ C < 100 %


M=10
IUPAC Names 2 View details
Acute Tox. 2 H310 H310
Skin Corr. 1 H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318  
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400 H400
Acute Tox. 3 H301 H301 GHS09
GHS06
GHS07
Dgr
1 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314  
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410
Skin Corr. 1B H314 H314 GHS08
GHS05
Dgr
State/Form
IUPAC Names
1 View details
Skin Sens. 1 H317 H317
Resp. Sens. 1 H334 H334
Skin Corr. 1B H314 H314 GHS09
GHS05
GHS07
Dgr
1 View details
Skin Sens. 1 H317 H317
Aquatic Acute 1 H400  
Acute Tox. 3 H301 H301 Dgr
State/Form
IUPAC Names
1 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Skin Corr. 1B H314 H314 GHS05
GHS07
Dgr
State/Form
1 View details
Skin Sens. 1 H317 H317
  H314 GHS09
GHS08
GHS05
Dgr
1 View details
  H317
  H334
  H400
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
Skin Corr. 1B; : .6 % ≤ C < 100 %
Skin Irrit. 2; : .06 % ≤ C < .6 %
Eye Irrit. 2; : .06 % ≤ C < .6 %
Skin Sens. 1; : .0015 % ≤ C < 100 %
Eye Dam. 1; : .6 % ≤ C < 100 %
Skin Corr. 1C; : .6 % ≤ C < 100 %
1 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318  
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
IUPAC Names 1 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 2 H330 H330
Aquatic Chronic 1 H410 H410
Aquatic Acute 1 H400 H400 GHS09
Wng
1 View details
Skin Corr. 1B H314 H314 GHS05
GHS07
Dgr
State/Form
IUPAC Names
1 View details
Skin Sens. 1 H317 H317
Aquatic Chronic 3 H412 H412
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
IUPAC Names 1 View details
Acute Tox. 2 H310 H310
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 2 H330 H330
STOT SE 3 H335 (Lungs) (Inhalation) H335
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS07
GHS06
Dgr
State/Form
1 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1B H317 H317
Eye Dam. 1 H318 H318
STOT SE 3 H335 (lungs) H335
Aquatic Acute 1 H400 H400
Acute Tox. 3 H301 H301 GHS09
GHS05
GHS06
Dgr
Skin Corr. 1B; : .6 % ≤ C < 100 %
Skin Irrit. 2; : .06 % ≤ C < .6 %
Skin Corr. 1C; : .6 % ≤ C < 100 %
Skin Corr. 1; : .6 % ≤ C < 100 %
Eye Irrit. 2; : .06 % ≤ C < .6 %
Eye Dam. 1; : .6 % ≤ C < 100 %
Skin Sens. 1A; : .0015 % ≤ C < 100 %


M=10
IUPAC Names 1 View details
Acute Tox. 3 H311 H311
Skin Corr. 1 H314 H314
Skin Sens. 1A H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Acute Tox. 4 H302 H302 GHS09
GHS08
GHS05
GHS07
Dgr
State/Form
1 View details
Acute Tox. 4 H312 H312
Skin Corr. 1 H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 4 H332 H332
Aquatic Acute 1 H400 H400
Acute Tox. 4 H302 H302 GHS09
GHS05
GHS06
GHS07
Dgr
1 View details
Acute Tox. 3 H311 H311
Skin Corr. 1B H314 H314
Skin Sens. 1 H317 H317
Acute Tox. 3 H331 H331
Aquatic Acute 1 H400 H400
Aquatic Chronic 1 H410 H410
Acute Tox. 3 H301 H301 EUH071
GHS09
GHS05
GHS06
Dgr
Skin Sens. 1; : .0015 % ≤ C < 100 %
Skin Irrit. 2; : .06 % ≤ C < .6 %
Skin Corr. 1C; : .6 % ≤ C < 100 %
Eye Dam. 1; : .6 % ≤ C < 100 %
Skin Corr. 1B; : .6 % ≤ C < 100 %
Eye Irrit. 2; : .06 % ≤ C < .6 %
Skin Corr. 1; : .6 % ≤ C < 100 %


M(Chronic)=1
M=10
IUPAC Names 1 View details
Acute Tox. 2 H310 H310
Skin Corr. 1 H314 H314
Skin Sens. 1 H317 H317
Eye Dam. 1 H318 H318
Acute Tox. 2 H330 H330
Aquatic Acute 1 H400  
Aquatic Chronic 1 H410 H410

Number of Aggregated Notifications: 54