Substance profile
Oxadiazon
Oxadiazon is white crystals and is odorless.
01 · Identification
What Oxadiazon is
Oxadiazon is white crystals and is odorless. Its molecular formula is C15H18Cl2N2O3 and its molecular weight is 345.2 g/mol. It melts at 90 °C, is soluble in water.
Under the GHS it carries the signal word Warning. It is classed as teratogens.
02 · Identifiers
Oxadiazon identifiers and molecular data
Oxadiazon CAS number and EC number
Oxadiazon molecular formula and molecular weight
Other names for Oxadiazon
- oxadiazon (ISO)
- 3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2(3H)-one
03 · GHS classification
Oxadiazon hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Oxadiazon pictograms and signal word
Oxadiazon hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| 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 |
Oxadiazon hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Oxadiazon. 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 Oxadiazon
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 Oxadiazon 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
Oxadiazon precautionary statements
CLP Annex VI assigns 3 precautionary statements to Oxadiazon. 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.
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
Oxadiazon 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 | оксадиазон (ISO) 5-(1,1-диметилетил)-3-[5-(1-метилетокси)-2,4-дихлорофенил)]-1,3,4-оксадиазол-2(3 H )-он |
| Spanish español | Oxadiazón (ISO) 3-[2,4-dicloro-5-(1-metiletoxi)fenil]-5-(1,1-dimetiletil)-1,3,4-oxadiazol-2(3 H )-ona |
| Czech čeština | oxadiazon (ISO) 5- terc -butyl-3-(2,4-dichlor-5-isopropoxyfenyl)-1,3,4-oxadiazol-2(3 H )-on |
| Danish dansk | oxadiazon (ISO) 3-[2,4-dichlor-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxdiazol-2(3 H) -on |
| German Deutsch | Oxadiazon (ISO) 3-[2,4-Dichlor-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2(3 H )-on |
| Estonian eesti | oksadiasoon (ISO) 3-[2,4-dikloro-5-(1-metüületoksü)fenüül]-5-(1,1-dimetüületüül)-1,3,4-oksadiasool-2(3 H )-oon |
| Greek ελληνικά | oxadiazon (οξαδιαζόνη) (ISO) 3-[2,4-διχλωρο-5-(1-μεθυλαιθοξυ)φαινυλο]-5-(1,1-διμεθυλαιθυλ)-1,3,4-οξαδιαζολ-2(3 H )-όνη |
| English English | oxadiazon (ISO) 3-[2,4-dichloro-5-(1-methylethoxy)phenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazol-2(3 H )-one |
| French français | oxadiazon (ISO) 3-[2,4-dichloro-5-(1-méthyléthoxy)phényl]-5-(1,1-diméthyléthyl)-1,3,4-oxadiazol-2(3 H )-one |
| Croatian hrvatski | oksadiazon (ISO) 3-[2,4-diklor-5-(1-metiletoksi)fenil]-5-(1,1-dimetiletil)-1,3,4-oksadiazol-2(3 H )-on |
| Italian italiano | ossadiazone (ISO) 5-(1,1-dimetiletil)-3-[2,4-dicloro-5-(1-metiletossi)fenil]-5-1,3,4-ossadiazol-2(3 H )-one |
| Latvian latviešu | oksadiazons (ISO) 3-[2,4-dihlor-5-(1-metiletoksi)fenil]-5-(1,1-dimetiletil)-1,3,4-oksadiazol-2(3 H )-ons |
| Lithuanian lietuvių | oksadiazonas (ISO) 3-[2,4-dichlor-5-(1-metiletoksi)fenil]-5-(1,1-dimetiletil)-1,3,4-oksadiazol-2(3 H )-onas |
| Hungarian magyar | oxadiazon (ISO) 3-[2,4-diklór-5-(1-metiletoxi)fenil]-5-(1,1-dimetiletil)-1,3,4-oxadiazol-2(3 H )-on |
| Maltese Malti | ossadiażon (ISO) 3-[2,4-dikloro-5-(1-metiletossi)fenil]-5-(1,1-dimetiletil)-1,3,4-ossadiażol-2(3 H )-on |
| Dutch Nederlands | oxadiazon (ISO) 3-[2,4-dichloor-5-(1-methylethoxy)fenyl]-5-(1,1-dimethylethyl)-1,3,4-oxadiazool-2(3 H )-on |
| Polish polski | oksadiazon (ISO) 3-[2,4-dichloro-5-(1-metyloetoksy)fenylo]-5-(1,1-dimetyloetylo)-1,3,4-oksadiazolo-2(3 H )-on5- tert -butylo-3-(2,4-dichloro-5-izopropoksyfenylo-1,3,4-oksadiazolo-2(3 H )-on |
| Portuguese português | oxadiazão (ISO) 3-[2,4-dicloro-5-(1-metiletoxi)fenil]-5-(1,1-dimetiletil)-1,3,4-oxadiazol-2(3 H )-ona |
| Romanian română | oxadiazon (ISO) 3-[2,4-dicloro-5-(1-metiletoxi)fenil]-5-(1,1-dimetiletil)-1,3,4-oxadiazol-2(3 H )-onă |
| Slovak slovenčina | oxadiazón (ISO) 5-terc-butyl-3-(2,4-dichlór-5-izopropoxyfenyl)-1,3,4-oxadiazol-2(3H)-ón |
| Slovenian slovenščina | oksadiazon (ISO) 3-[2,4-dikloro-5-(1-metiletoksi)fenil]-5-(1,1-dimetiletil)-1,3,4-oksadiazol-2(3 H )-on |
| Finnish suomi | oksadiatsoni (ISO) 3-[2,4-dikloori-5-(1-metyylietoksi)fenyyli]-5-(1,1-dimetyylietyyli)-1,3,4-oksadiatsol-2(3 H )-oni |
| Swedish svenska | oxadiazon (ISO) 3-[2,4-diklor-5-(1-metyletoxi)fenyl]-5-(1,1-dimetyletyl)-1,3,4-oxadiazol-2(3 H )-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
Oxadiazon GHS label elements
Everything CLP Annex VI fixes for Oxadiazon, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Oxadiazon
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Avoid release to the environment.
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Oxadiazon in the GHS label constructor →
07 · Health hazards
Oxadiazon health hazards and exposure limits
Oxadiazon hazard summary
The protox inhibitor herbicides (Fomesafen,Oxadiazon, Lactofen, Sulfentrazone, Carfentrazone-ethyl, Oxyfluorofen and Bifenox) can disrupt porphyrin metabolism; It has been speculated that a transient form of porphyria variegate may occur following a massive exposure or long-term exposure to lower doses. A mild eye irritant; [HSDB] An eye irritant; [eChemPortal: ERMA] An irritant; Targets the liver; [MSDSonline] See Fluthiacet-methyl.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Oxadiazon carcinogenicity classification
Cancer Classification: Group C Possible Human Carcinogen
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
Oxadiazon 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.
Oxadiazon melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 90 °C (194 °F) | HSDB |
Oxadiazon density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.26 g/cm³ | HSDB |
Oxadiazon solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in solvents | HSDB | |
| In water, 0.7 mg/l @ 24 °C | at 24 °C | HSDB |
Oxadiazon vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1.15e-7 mmHg | at 22 °C | HSDB |
| 1.1e-7 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Source notes
Further notes on Oxadiazon
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
Solubility in methanol, ethanol ca 100, cyclohexane 200, acetone, isophorone, methyl ethyl ketone, carbon tetrachloride ca 600, toluene, benzene, chloroform ca 1000 (all in g/l, 20 °C)
Source: HSDB
10 · Handling and storage
Oxadiazon storage and handling
Oxadiazon reactivity
OXYDIAZON is a diazo compound. Azo, diazo, azido compounds can detonate. This applies in particular to organic azides that have been sensitized by the addition of metal salts or strong acids. Toxic gases are formed by mixing materials of this class with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. Flammable gases are formed by mixing materials in this group with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Oxadiazon in the storage compatibility matrix →
11 · Questions
Oxadiazon — frequently asked questions
What is the CAS number of Oxadiazon?
The CAS number of Oxadiazon is 19666-30-9. Its EC number is 243-215-7.
What is the chemical formula of Oxadiazon?
The molecular formula of Oxadiazon is C15H18Cl2N2O3 and its molecular weight is 345.2 g/mol.
What does a Oxadiazon label have to show?
Under CLP Annex VI the label for Oxadiazon carries the pictogram Environment and the signal word is Warning.
Is Oxadiazon flammable?
CLP Annex VI assigns Oxadiazon 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 Oxadiazon a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Oxadiazon. 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 Oxadiazon?
The melting point reported for Oxadiazon is 90 °C (194 °F) (HSDB).
Nearby
Substances next to Oxadiazon
Keep going: substances starting with O, or search the whole database by name, CAS number, pictogram or signal word.