Substance profile
Linuron
Linuron is a white crystalline solid and is odorless.
01 · Identification
What Linuron is
Linuron is a white crystalline solid and is odorless. Its molecular formula is C9H10Cl2N2O2 and its molecular weight is 249.09 g/mol. It melts at 93.5 °C.
Under the GHS it carries the signal word Danger. It is classed as carcinogens.
02 · Identifiers
Linuron identifiers and molecular data
Linuron CAS number and EC number
Linuron molecular formula and molecular weight
Other names for Linuron
- linuron (ISO)
- 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea
03 · GHS classification
Linuron hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Linuron pictograms and signal word
Linuron hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Carcinogenicity GHS chapter 3.6 | Category 2 | H351 | GHS08 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 2 | H373 | GHS08 |
| 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 |
Linuron hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H360Df | May damage the unborn child. Suspected of damaging fertility. |
| H302 | Harmful if swallowed. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Linuron. 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 Linuron
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 Linuron 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
Linuron precautionary statements
CLP Annex VI assigns 13 precautionary statements to Linuron. 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
Linuron 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 | линурон (ISO) 3-(3,4-дихлорофенил)-1-метил-1-метоксиуреа |
| Spanish español | Linurón (ISO) 3-(3,4-diclorofenil)-1-metoxi-1-metilurea |
| Czech čeština | linuron (ISO) 3-(3,4-dichlorfenyl)-1-methoxy-1-methylmočovina |
| Danish dansk | linuron (ISO) 3-(3,4-dichlorphenyl)-1-methoxy-1-methylurinstof |
| German Deutsch | Linuron (ISO) 3-(3,4-Dichlorphenyl)-1-methoxy-1-methylharnstoff |
| Estonian eesti | linuroon (ISO) 3-(3,4-diklorofenüül)-1-metoksü-1-metüülkarbamiid |
| Greek ελληνικά | linuron (λινουρόνη) (ISO) 3-(3,4-διχλωροφαινυλο)-1-μεθοξυ-1-μεθυλουρία |
| English English | linuron (ISO) 3-(3,4-dichlorophenyl)-1-methoxy-1-methylurea |
| French français | linuron (ISO) 3-(3,4-dichlorophényl)-1-méthoxy-1-méthylurée |
| Croatian hrvatski | linuron (ISO) 3-(3,4-diklorfenil)-1-metoksi-1-metil-urea |
| Italian italiano | linuron (ISO) 3-(3,4-diclorofenil)-1-metil-1-metossiurea |
| Latvian latviešu | linurons (ISO) 3-(3,4-dihlorfenil)-l-metoksi-1-metilurīnviela |
| Lithuanian lietuvių | linuronas (ISO) 3-(3,4-dichlorfenil)-1-metoksi-1-metilkarbamidas |
| Hungarian magyar | linuron (ISO) 3-(3,4-diklór-fenil)-1-metoxi-1-metil-karbamid |
| Maltese Malti | linuron (ISO) 3-(3,4-diklorofenil)-1-metossi-1-metilurea |
| Dutch Nederlands | linuron (ISO) 3-(3,4-dichloorfenyl)-1-methoxy-1-methylureum |
| Polish polski | linuron (ISO) 3-(3,4-dichlorofenylo)-1-metoksy-1-metylomocznik |
| Portuguese português | linurão (ISO) 3-(3,4-diclorofenil)-1-metil-1-metoxiureia |
| Romanian română | linuron (ISO) 3-(3,4-diclorofenil)-1-metoxi-1-metiluree |
| Slovak slovenčina | linurón (ISO) 3-(3,4-dichlórfenyl)-1-metoxy-1-metylmočovina |
| Slovenian slovenščina | linuron (ISO) 3-(3,4-diklorofenil)-1-metoksi-1-metilsečnina |
| Finnish suomi | linuroni (ISO) 3-(3,4-dikloorifenyyli)-1-metoksi-1-metyyliurea |
| Swedish svenska | linuron (ISO) 3-(3,4-diklorfenyl)-1-metoxi-1-metylurea |
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
Linuron GHS label elements
Everything CLP Annex VI fixes for Linuron, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Linuron
- Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- May damage the unborn child. Suspected of damaging fertility.
- Harmful if swallowed.
- May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Obtain special instructions before use.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- 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 exposed or concerned:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Get medical advice/attention 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 Linuron in the GHS label constructor →
07 · Health hazards
Linuron health hazards and exposure limits
Linuron hazard summary
May cause skin, eye, nose, and throat irritation; Urea-derived herbicides have low toxicity in animal feeding studies; May induce methemoglobinemia; [HSDB] Systemic toxicity unlikely unless large amounts ingested; [EPA Pesticides, p. 122] May effect blood causing anemia; [ICSC] May cause irritation; [MSDSonline] May interfere with fertility in rats because of its antiandrogenic effects; [REPROTOX]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Linuron carcinogenicity classification
Cancer Classification: Group C Possible Human Carcinogen
Source: Hazardous Substances Data Bank (HSDB)
CLASSIFICATION: C; possible human carcinogen. BASIS FOR CLASSIFICATION: Limited evidence indicated linuron produced increases in both testicular hyperplasia and adenomas in male rats in three separate studies. Hepatocellular adenomas were observed in female mice in a single study at the highest dose group tested; the tumors were benign and showed no progression toward malignancy. HUMAN CARCINOGENICITY DATA: None. ANIMAL CARCINOGENICITY DATA: Limited.
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
Linuron 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.
Linuron melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 93.5 °C (200.3 °F) | range, midpoint shown | HSDB |
Linuron density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.49 g/cm³ | at 20 °C | HSDB |
Linuron solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | PARTIALLY SOL IN TOLUENE | HSDB | |
| SPARINGLY SOL IN ALIPHATIC HYDROCARBONS | HSDB |
Linuron vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.000015 mmHg | at 24 °C | ICSC |
| 0.00000143 mmHg | at 25 °C | HSDB | |
| 0.00000143 mmHg | Haz-Map |
Linuron corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Non-corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Source notes
Further notes on Linuron
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
In acetone 500, benzene 150, ethanol 150, xylene 130, n-heptane 15 (all in g/kg at 25 °C). Readily soluble in dimethylformamide, chloroform, and diethyl ether. Moderately soluble in aromatic hydrocarbons. Sparingly soluble in aliphatic hydrocarbons.
Source: HSDB
10 · Handling and storage
Linuron storage and handling
Linuron safe storage
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Linuron storage conditions
Store in cool, dry place ... .
Source: Hazardous Substances Data Bank (HSDB)
Linuron reactivity
A urea derivative.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Linuron in the storage compatibility matrix →
11 · Questions
Linuron — frequently asked questions
What is the CAS number of Linuron?
The CAS number of Linuron is 330-55-2. Its EC number is 206-356-5.
What is the chemical formula of Linuron?
The molecular formula of Linuron is C9H10Cl2N2O2 and its molecular weight is 249.09 g/mol.
What does a Linuron label have to show?
Under CLP Annex VI the label for Linuron carries the pictograms Health hazard, Exclamation mark and Environment and the signal word is Danger.
Is Linuron flammable?
CLP Annex VI assigns Linuron 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 Linuron a carcinogen?
CLP Annex VI assigns Linuron H351 — suspected of causing cancer. That is category 2: the evidence points that way but is not conclusive.
What is the melting point of Linuron?
The melting point reported for Linuron is 93.5 °C (200.3 °F), range, midpoint shown (HSDB).
How should Linuron be stored?
Store in cool, dry place ... . (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Linuron
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