Substance profile
Clomazone
Clomazone is a clear colorless to light brown viscous liquid.
01 · Identification
What Clomazone is
Clomazone is a clear colorless to light brown viscous liquid. Its molecular formula is C12H14ClNO2 and its molecular weight is 239.7 g/mol. It boils at 275 °C, melts at 25 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Clomazone identifiers and molecular data
Clomazone CAS number and EC number
Clomazone molecular formula and molecular weight
Other names for Clomazone
- clomazone (ISO)
- 2-(2-chlorobenzyl)-4,4-dimethyl-1,2-oxazolidin-3-one
03 · GHS classification
Clomazone hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Clomazone pictograms and signal word
Clomazone hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 4 | H332 | 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 |
Clomazone hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H332 | Harmful if inhaled. |
| H302 | Harmful if swallowed. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Clomazone. 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 Clomazone
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 Clomazone 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
Clomazone precautionary statements
CLP Annex VI assigns 10 precautionary statements to Clomazone. 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
Clomazone 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 | кломазон (ISO) 4,4-диметил-2-(2-хлоробензил)-1,2-оксазолидин-3-он |
| Spanish español | Clomazona (ISO) 2-(2-clorobencil)-4,4-dimetil-1,2-oxazolidin-3-ona |
| Czech čeština | klomazon (ISO) 2-(2-chlorbenzyl)-4,4-dimethyl-1,2-oxazolidin-3-on |
| Danish dansk | clomazon (ISO) 2-(2-chlorbenzyl)-4,4-dimethyl-1,2-oxazolidin-3-on |
| German Deutsch | Clomazon (ISO) 2-(2-Chlorbenzyl)-4,4-dimethyl-1,2-oxazolidin-3-on |
| Estonian eesti | klomasoon (ISO) 2-(2-klorobensüül)-4,4-dimetüül-1,2-oksasolidiin-3-oon |
| Greek ελληνικά | clomazone (ISO) 2-(2-χλωροβενζυλο)-4,4-διμεθυλο-1,2-οξαζολιδιν-3-όνη |
| English English | clomazone (ISO) 2-(2-chlorobenzyl)-4,4-dimethyl-1,2-oxazolidin-3-one |
| French français | clomazone (ISO) 2- (2-chlorobenzyl) -4,4-diméthyl-1,2-oxazolidin-3-one |
| Croatian hrvatski | klomazon (ISO) 2-(2-klorbenzil)-4,4-dimetil-1,2-oksazolidin-3-on |
| Italian italiano | clomazone (ISO) 2-(2-clorobenzil)-4,4-dimetil-1,2-ossazolidin-3-one |
| Latvian latviešu | klomazons (ISO) 2-(2-hlorbenzil)-4,4-dimetil-1,2-oksazolidīn-3-ons |
| Lithuanian lietuvių | klomazonas (ISO) 2-(2-chlorbenzil)-4,4-dimetil-1,2-oksazolidin-3-onas |
| Hungarian magyar | klomazon (ISO) 2-(2-klórbenzil)-4,4-dimetil-1,2-oxazolidin-3-on |
| Maltese Malti | klomażon (ISO) 2-(2-klorobenżil)-4,4-dimetil-1,2-ossażolidin-3-on |
| Dutch Nederlands | clomazon (ISO) 2-(2-chloorbenzyl)-4,4-dimethyl-1,2-oxazolidine-3-on |
| Polish polski | chlomazon (ISO) 2-(2-chlorobenzylo)-4,4-dimetylo-1,2-oksazolidyn-3-on |
| Portuguese português | clomazona (ISO) 2-(2-clorobenzil)-4,4-dimetil-1,2-oxazolidin-3-ona |
| Romanian română | clomazon (ISO) 2-(2-clorbenzil)-4,4-dimetil-1,2-oxazolidin-3-onă |
| Slovak slovenčina | klomazón (ISO), 2-(2-chlórbenzyl)-4,4-dimetyl-1,2-oxazolidín-3-ón |
| Slovenian slovenščina | klomazon (ISO) 2-(2-klorobenzil)-4,4-dimetil-1,2-oksazolidin-3-on |
| Finnish suomi | klomatsoni (ISO) 2-(2-klooribentsyyli)-4,4-dimetyyli-1,2-oksatsolidiini-3-oni |
| Swedish svenska | klomazon (ISO) 2-(2-klorbensyl)-4,4-dimetyl-1,2-oxazolidin-3-on |
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
Clomazone GHS label elements
Everything CLP Annex VI fixes for Clomazone, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Clomazone
- Harmful if inhaled.
- Harmful if swallowed.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Use only outdoors or in a well-ventilated area.
- Avoid release to the environment.
- IF SWALLOWED:
- IF INHALED:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Clomazone in the GHS label constructor →
07 · Health hazards
Clomazone health hazards and exposure limits
Clomazone hazard summary
A minor skin irritant; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Clomazone carcinogenicity classification
Cancer Classification: Not Likely to be Carcinogenic to Humans
Source: Hazardous Substances Data Bank (HSDB)
An IARC group and a CLP classification answer different questions. IARC judges whether the evidence for cancer in humans is strong enough; CLP Annex VI is the legally binding EU classification. A substance can carry one and not the other.
08 · Physical and chemical properties
Clomazone 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.
Clomazone boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 275 °C (527 °F) | HSDB |
Clomazone melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 25 °C (77 °F) | HSDB |
Clomazone density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.192 g/cm³ | at 25 °C | HSDB |
Clomazone solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Readily soluble in acetonitrile, hexane, dioxane, xylene | HSDB | |
| Miscible in acetone, chloroform, cyclohexanone, methylene chloride, methanol, toluene, heptane, and DMF | HSDB | ||
| In water, 1,100 ppm at 25 °C | at 25 °C | HSDB |
Clomazone vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.00014 mmHg | OSHA | |
| 0.00014 mmHg | at 25 °C | HSDB |
Clomazone flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 41.94 °C (107.5 °F) | range, midpoint shown | HSDB |
| 72.5 °C (162.5 °F) | range, midpoint shown | HSDB |
Clomazone vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 1.192 (air = 1) | at 25 °C | OSHA |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Clomazone storage and handling
Clomazone storage conditions
Store in a cool, well-ventilated, secure area, out of the reach of children and animals.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Clomazone in the storage compatibility matrix →
10 · Questions
Clomazone — frequently asked questions
What is the CAS number of Clomazone?
The CAS number of Clomazone is 81777-89-1.
What is the chemical formula of Clomazone?
The molecular formula of Clomazone is C12H14ClNO2 and its molecular weight is 239.7 g/mol.
What does a Clomazone label have to show?
Under CLP Annex VI the label for Clomazone carries the pictograms Exclamation mark and Environment and the signal word is Warning.
Is Clomazone flammable?
CLP Annex VI assigns Clomazone 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. The flash point reported for it is 41.94 °C (107.5 °F), range, midpoint shown (HSDB).
Is Clomazone a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Clomazone. 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 boiling point of Clomazone?
The boiling point reported for Clomazone is 275 °C (527 °F) (HSDB).
What is the melting point of Clomazone?
The melting point reported for Clomazone is 25 °C (77 °F) (HSDB).
How should Clomazone be stored?
Store in a cool, well-ventilated, secure area, out of the reach of children and animals. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Clomazone
Keep going: substances starting with C, or search the whole database by name, CAS number, pictogram or signal word.