Substance profile
Bromoxynil
Bromoxynil is a white crystalline solid and is odorless.
01 · Identification
What Bromoxynil is
Bromoxynil is a white crystalline solid and is odorless. Its molecular formula is C7H3Br2NO and its molecular weight is 276.91 g/mol. It melts at 190 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Bromoxynil identifiers and molecular data
Bromoxynil CAS number and EC number
Bromoxynil molecular formula and molecular weight
Other names for Bromoxynil
- bromoxynil (ISO)
- 3,5-dibromo-4-hydroxybenzonitrile
- bromoxynil phenol
03 · GHS classification
Bromoxynil hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Bromoxynil pictograms and signal word
Bromoxynil hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 3 | H301 | GHS06 |
| Acute toxicity - inhalation GHS chapter 3.1 | Category 1 or 2 | H330 | GHS06 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | 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 |
Where two values are shown with “or”, the hazard statement is shared by more than one category or by more than one class, and the code alone does not say which. H272, for example, belongs to oxidising liquids and to oxidising solids — the physical state decides. The binding answer for a specific entry is in the CLP Annex VI table itself.
Bromoxynil hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H361d | Suspected of damaging the unborn child. |
| H330 | Fatal if inhaled. |
| H301 | Toxic if swallowed. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Bromoxynil. 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 Bromoxynil
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 Bromoxynil 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
Bromoxynil precautionary statements
CLP Annex VI assigns 15 precautionary statements to Bromoxynil. 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
Bromoxynil 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 | бромоксинил (ISO) 3,5-дибромо-4-хидроксибензонитрилбромоксинил фенол |
| Spanish español | Bromoxinilo (ISO) 3,5-dibromo-4-hidroxibenzonitrilobromoxinil-fenol |
| Czech čeština | bromoxynil (ISO) 3,5-dibrom-4-hydroxybenzonitrilbromoxynilfenol |
| Danish dansk | bromoxynil (ISO), 3,5-dibrom-4-hydroxybenzonitril bromoxynil-phenol |
| German Deutsch | Bromoxynil (ISO) 3,5-Dibrom-4-hydroxybenzonitril |
| Estonian eesti | bromoksüniil (ISO) 3,5-dibromo-4-hüdroksübensonitriilbromoksüniilfenool |
| Greek ελληνικά | bromoxynil (βρωμοξυνίλη) (ISO) 3,5-διβρωμο-4-υδροξυβενζονιτρίλιοφαινολική βρωμοξυνίλη |
| English English | bromoxynil (ISO) 3,5-dibromo-4-hydroxybenzonitrile bromoxynil phenol |
| French français | bromoxynil (ISO) 3,5-dibromo-4-hydroxybenzonitrilebromoxynil phénol |
| Croatian hrvatski | bromoksinil (ISO) 3,5-dibrom-4-hidroksibenzonitrilbromoksinil-fenol |
| Italian italiano | bromoxinil (ISO) 3,5-dibromo-4-idrossibenzonitrile |
| Latvian latviešu | bromoksinils (ISO) 3,5-dibrom-4-hidroksibenzonitrilsbromoksinilfenols |
| Lithuanian lietuvių | bromoksinilas (ISO) 3,5-dibrom-4-hidroksibenznitrilas bromoksinilo fenolis |
| Hungarian magyar | bromoxinil (ISO) 3,5-dibróm-4-hidroxibenzonitrilbromoxinilfenol |
| Maltese Malti | bromossinil (ISO) 3,5-dibromo-4-idrossibenżonitril fenol tal-bromossinil |
| Dutch Nederlands | bromoxynil (ISO) 3,5-dibroom-4-hydroxybenzonitrilbromoxynil-fenol |
| Polish polski | bromoksynil (ISO) 3,5-dibromo-4-hydroksybenzonitrylfenol bromoksynilu |
| Portuguese português | bromoxinil (ISO) 3,5-dibromo-4-hidroxibenzonitrilobromoxinil-fenol |
| Romanian română | bromoxinil(ISO) 3,5-dibromo-4-hidroxibenzonitrilbromoxinil fenol |
| Slovak slovenčina | bromoxynil (ISO) 3,5-dibróm-4-hydroxybenzonitril |
| Slovenian slovenščina | bromoksinil (ISO) 3,5-dibromo-4-hidroksibenzonitrilbromoksinil fenol |
| Finnish suomi | bromoksiniili (ISO) 3,5-dibromi-4-hydroksibentsonitriilibromoksiliinifenoli |
| Swedish svenska | bromoxinil (ISO) 3,5-dibrom-4-hydroxibensonitrilbromoxinilfenol |
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
Bromoxynil GHS label elements
Everything CLP Annex VI fixes for Bromoxynil, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Bromoxynil
- Suspected of damaging the unborn child.
- Fatal if inhaled.
- Toxic if swallowed.
- May cause an allergic skin reaction.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Avoid breathing 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.
- Contaminated work clothing should not be allowed out of the workplace.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF INHALED:
- Immediately call a POISON CENTER/doctor/…
- Get medical advice/attention.
- Rinse mouth.
- If skin irritation or rash occurs:
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Bromoxynil in the GHS label constructor →
07 · Health hazards
Bromoxynil health hazards and exposure limits
Bromoxynil hazard summary
Mildly irritating to eyes and abraded skin of rabbits; No significant adverse effects were observed in a three month high-dose feeding study with rats; Dermal and inhalation studies with 10% solution had the same outcome; Four workers in a manufacturing plant making both bromoxynil and ioxynil developed typical symptoms of uncoupler poisoning including excessive perspiration, thirst, fever, emesis, myalgia, and weight loss. ... The effects reversed rapidly after exposure ceased. [HSDB] May cause skin sensitization; [eChemPortal: ESIS] An irritant; May cause skin sensitization; [MSDSonline] Effects in high-dose animal studies include changes in structure or function of salivary glands, zonal hepatitis (hepatocellular necrosis), and other changes to liver; [RTECS] At maternally toxic doses in rodents, supernumerary ribs and reduced fetal weights were observed; No human pregnancy effects are known; [REPROTOX] See Benzonitrile.
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Bromoxynil 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.
Bromoxynil occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 5.0 [mg/m3], as CN | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
These are United States values. The European Union sets its own indicative and binding limits, and the figure that applies at a given workplace is the one in the local regulation — not the one shown here.
08 · Physical and chemical properties
Bromoxynil 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.
Bromoxynil melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 190 °C (374 °F) | range, midpoint shown | HSDB |
| 194.5 °C (382.1 °F) | range, midpoint shown, at 0.15 mmHg (reduced pressure) | HSDB |
Bromoxynil solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | IN WATER 130 PPM (0.013%) WT/VOL @ 20-25 °C; IN ETHANOL 7% WT/VOL @ 20-25 °C; IN LIGHT PETROLEUM & XYLENE 1-2% WT/VOL @ 20-25 °C | HSDB | |
| IN DIMETHYLFORMAMIDE 61% WT/VOL @ 20-25 °C; IN BENZENE 1% WT/VOL @ 20-25 °C; IN METHANOL 9% WT/VOL @ 20-25 °C; IN ACETONE 17% WT/VOL AT 20-25 °C | HSDB | ||
| Solubility in (g/L) at 25 °C: acetone 170; tetrahydrofuran 410 | at 25 °C | HSDB |
Bromoxynil vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1275 mmHg | at 25 °C | HSDB |
| 5e-8 mmHg | Haz-Map |
Bromoxynil corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Non-corrosive | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Bromoxynil storage and handling
Bromoxynil storage conditions
Store at temperatures above 3 °F. If allowed to freeze, remix before using. Do not contaminate water, food, or feed by storage ... of this chemical.
Source: Hazardous Substances Data Bank (HSDB)
Bromoxynil reactivity
BROMOXYNIL is a weak acid.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Bromoxynil in the storage compatibility matrix →
10 · Questions
Bromoxynil — frequently asked questions
What is the CAS number of Bromoxynil?
The CAS number of Bromoxynil is 1689-84-5. Its EC number is 216-882-7.
What is the chemical formula of Bromoxynil?
The molecular formula of Bromoxynil is C7H3Br2NO and its molecular weight is 276.91 g/mol.
What does a Bromoxynil label have to show?
Under CLP Annex VI the label for Bromoxynil carries the pictograms Skull and crossbones, Health hazard and Environment and the signal word is Danger.
Is Bromoxynil flammable?
CLP Annex VI assigns Bromoxynil 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 Bromoxynil a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Bromoxynil. 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 exposure limit for Bromoxynil?
The US occupational exposure limit reported for Bromoxynil is 5.0 [mg/m3], as CN (Haz-Map, Information on Hazardous Chemicals and Occupational Diseases). Limits differ by country: the EU sets its own indicative and binding values, and the figure that applies at a given workplace is the one in the local regulation.
What is the melting point of Bromoxynil?
The melting point reported for Bromoxynil is 190 °C (374 °F), range, midpoint shown (HSDB).
How should Bromoxynil be stored?
Store at temperatures above 3 °F. If allowed to freeze, remix before using. Do not contaminate water, food, or feed by storage ... of this chemical. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Bromoxynil
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