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

Chlorfenson

Chlorfenson is crystals from benzene.

CAS 80-33-1 Warning

01 · Identification

What Chlorfenson is

Chlorfenson is crystals from benzene. It melts at 86.5 °C, is soluble in water.

Under the GHS it carries the signal word Warning.

02 · Identifiers

Chlorfenson identifiers and molecular data

Chlorfenson CAS number and EC number

CAS number80-33-1
EC number201-270-4
Index number (CLP Annex VI)607-156-00-4

Other names for Chlorfenson

  • chlorfenson (ISO)
  • 4-chlorophenyl 4-chlorobenzenesulfonate

03 · GHS classification

Chlorfenson hazard classification

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

Chlorfenson pictograms and signal word

Signal wordWarning

Chlorfenson hazard class and category

GHS hazard classes Chlorfenson falls into
Hazard class Category From code Pictogram
Acute toxicity - oral GHS chapter 3.1 Category 4 H302 GHS07
Skin corrosion/irritation GHS chapter 3.2 Category 2 H315 GHS07
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

Chlorfenson hazard statements (H-codes)

Hazard statements assigned to Chlorfenson
CodeHazard statement
H302 Harmful if swallowed.
H315 Causes skin irritation.
H400 Very toxic to aquatic life.
H410 Very toxic to aquatic life with long lasting effects.

This page lists only the codes assigned to Chlorfenson. 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 Chlorfenson

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 Chlorfenson 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

Chlorfenson precautionary statements

CLP Annex VI assigns 13 precautionary statements to Chlorfenson. 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

Chlorfenson 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 хлорфенсон (ISO) 4-хлорофенилов 4-хлоробензенсулфонат
Spanish español Clorfensón (ISO) 4-clorobencenosulfonato de 4-clorofenilo
Czech čeština chlorfenson (ISO) (4-chlorfenyl)-4-chlorbenzen-1-sulfonát
Danish dansk chlorfenson (ISO) 4-chlorphenyl-4-chlorbenzensulfonat
German Deutsch Chlorfenson (ISO) 4-Chlorphenyl-4-chlorbenzolsulfonat
Estonian eesti klorofensoon (ISO) 4-klorofenüül-4-klorobenseensulfonaat
Greek ελληνικά chlorfenson (χλωροφενσόνη) (ISO) 4-χλωροβενζολοσουλφονικό 4-χλωροφαινύλιο
English English chlorfenson (ISO) 4-chlorophenyl 4-chlorobenzenesulfonate
French français chlorfenson (ISO) 4-chlorobenzènesulfonate de 4-chlorophényle
Croatian hrvatski klorfenson (ISO) 4-klorfenil-4-klorbenzensulfonat
Italian italiano clorfenson (ISO) 4-clorobenzensolfonato di 4-clorofenile
Latvian latviešu hlorfenzons (ISO) 4-hlorfenil-4-hlorbenzolsulfonāts
Lithuanian lietuvių chlorfensonas (ISO) 4-chlorfenil-4-chlorbenzensulfonatas
Hungarian magyar klórfenzon (ISO) 4-klórfenil-4-klórbenzolszulfonát
Maltese Malti klorfenson (ISO) 4-klorobenzenesulfonat ta’ 4-florofenil
Dutch Nederlands chloorfenson (ISO) 4-chloorfenyl-4-chloorbenzeensulfonaat
Polish polski chlorfenson (ISO) 4-chlorobenzenosulfonian 4-chlorofenylu
Portuguese português clorfensão (ISO) 4-clorobenzenossulfonato de 4-clorofenilo
Romanian română clorfenson (ISO) 4-clorofenil 4-clorobenzensulfonat
Slovak slovenčina chlórfensón (ISO) O-(4-chlórfenyl)-4-chlórbenzénsulfonát
Slovenian slovenščina klorfenzon (ISO) 4-klorofenil 4-klorobenzensulfonat
Finnish suomi klorfensoni (ISO) 4-kloorifenyyli-4-klooribentseenisulfonaatti
Swedish svenska klorfenson (ISO) 4-klorfenyl-4-klorbensensulfonat

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

Chlorfenson GHS label elements

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

GHS07 Exclamation mark pictogramGHS09 Environment pictogram

Warning

Chlorfenson

  • Harmful if swallowed.
  • Causes skin irritation.
  • Very toxic to aquatic life.
  • Very toxic to aquatic life with long lasting effects.
  • Wash thoroughly after handling.
  • Do not eat, drink or smoke when using this product.
  • Avoid release to the environment.
  • Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/
  • IF SWALLOWED:
  • IF ON SKIN:
  • Call a POISON CENTER/doctor/ if you feel unwell.
  • Get medical advice/attention.
  • Rinse mouth.
  • If skin irritation occurs:
  • Wash with plenty of water/
  • Collect spillage.
  • Dispose of contents/container to

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

Need this as an actual label? Open Chlorfenson in the GHS label constructor →

07 · Health hazards

Chlorfenson health hazards and exposure limits

Chlorfenson hazard summary

A skin irritant; [HSDB] A skin irritant; May cause CNS depression; [MSDSonline]

Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

08 · Physical and chemical properties

Chlorfenson 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.

Chlorfenson melting point

Property Value Conditions Source
Melting point 86.5 °C (187.7 °F) HSDB
80 °C (176 °F) approximate, TECHNICAL HSDB

Chlorfenson solubility

Property Value Conditions Source
Solubility SOLUBLE IN AROMATIC SOLVENTS, ACETONE; INSOLUBLE IN WATER HSDB
SOL IN 100 G SOLVENT @ 25 °C: 1 G IN ETHYL ALC; 2 G IN KEROSENE at 25 °C HSDB

Chlorfenson vapor pressure

Property Value Conditions Source
Vapor pressure 0.00000188 mmHg Haz-Map
Negligible at 25 °C at 25 °C HSDB

Chlorfenson corrosivity

Property Value Conditions Source
Corrosivity Noncorrosive HSDB

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

09 · Source notes

Further notes on Chlorfenson

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.

Solubility

PRACTICALLY INSOL IN WATER; SOL @ 25 °C IN G/100 ML: 1.4 G IN 95% ALCOHOL; 41.0 G IN CARBON TETRACHLORIDE; 110.0 G IN CYCLOHEXANONE; 110.0 G IN ETHYLENE DICHLORIDE; 2.0-2.7 G IN PETROLEUM OILS; 130.0 G IN ACETONE; 78 G IN XYLENE

Source: HSDB

10 · Questions

Chlorfenson — frequently asked questions

What is the CAS number of Chlorfenson?

The CAS number of Chlorfenson is 80-33-1. Its EC number is 201-270-4.

What does a Chlorfenson label have to show?

Under CLP Annex VI the label for Chlorfenson carries the pictograms Exclamation mark and Environment and the signal word is Warning.

Is Chlorfenson flammable?

CLP Annex VI assigns Chlorfenson 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 Chlorfenson a carcinogen?

CLP Annex VI records no harmonised carcinogenicity classification for Chlorfenson. 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 Chlorfenson?

The melting point reported for Chlorfenson is 86.5 °C (187.7 °F) (HSDB).

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