Substance profile
Cypermethrin
Cypermethrin is a viscous semi-solid and is odorless.
01 · Identification
What Cypermethrin is
Cypermethrin is a viscous semi-solid and is odorless. Its molecular formula is C22H19Cl2NO3 and its molecular weight is 416.3 g/mol. It melts at 70 °C, is soluble in water.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Cypermethrin identifiers and molecular data
Cypermethrin CAS number and EC number
Cypermethrin molecular formula and molecular weight
Other names for Cypermethrin
- cypermethrin (ISO)
- α-cyano-3-phenoxybenzyl 3-(2,2-dichlorovi-nyl)-2,2-dimethylcyclopro-panecarboxylate
- cypermethrin cis/trans +/- 40/60
03 · GHS classification
Cypermethrin hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Cypermethrin pictograms and signal word
Cypermethrin 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 |
| Specific target organ toxicity - single exposure GHS chapter 3.8 | Category 3 | H335 | GHS07 |
| 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 |
Cypermethrin hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H332 | Harmful if inhaled. |
| H302 | Harmful if swallowed. |
| H335 | May cause respiratory irritation. |
| 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 Cypermethrin. 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 Cypermethrin
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 Cypermethrin 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
Cypermethrin precautionary statements
CLP Annex VI assigns 11 precautionary statements to Cypermethrin. 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
Cypermethrin 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 | циперметрин (ISO) 3-фенокси-α-циано-бензилов 3-(2,2-дихлоровинил)-2,2-диметилциклопропанкарбоксилатциперметрин цис/транс +/- 40/60 |
| Spanish español | Cipermetrina (ISO) 3-(2,2-diclorovinil)-2,2-dimetilciclopropanocarboxilato de α-ciano-3-fenoxibencilocipermetrina cis/trans +/- 40/60 |
| Czech čeština | cypermethrin (ISO) α-kyan-3-fenoxybenzyl 3-(2,2-dichlorvinyl)-2,2-dimethylcyklopropankarboxylátcypermethrin cis/trans +/- 40/60 |
| Danish dansk | cypermethrin (ISO) α-cyan-3-phenoxybenzyl-3-(2,2- dichlorvinyl)-2,2-dimethylcyclopropancarboxylatcypermethrin cis/trans +/- 40/60 |
| German Deutsch | Cypermethrin (ISO) α-Cyan-3-phenoxybenzyl 3-(2,2-dichlorvinyl)-2,2-dimethylcyclopropancarboxylatCypermethrin cis/trans +/-40/60 |
| Estonian eesti | tsüpermetriin (ISO) α-tsüano-3-fenoksübensüül-3-(2,2-diklorovinüül)-2,2-dimetüültsüklopropaankarboksülaattsüpermetriin (cis: trans – ± 40: 60) |
| Greek ελληνικά | cypermethrin (κυπερμεθρίνη) (ISO) 3-(2,2-διχλωροβινυλο)-2,2-διμεθυλοκυκλοπροπανοκαρβοξυλικό (S)-α-κυανο-3-φαινοξυβενζύλιο κυπερμεθρίνη cis/trans +/- 40/60 |
| English English | cypermethrin (ISO) α-cyano-3-phenoxybenzyl 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylatecypermethrin cis/trans +/- 40/60 |
| French français | cyperméthrine (ISO) 3-(2,2-dichlorovinyl)-2,2-diméthylcyclopropanecarboxylate de α-cyano-3-phénoxybenzyle cyperméthrine cis/trans +/- 40/60 |
| Croatian hrvatski | cipermetrin (ISO) α-cijano-3-fenoksibenzil 3-(2,2-diklorovinil)-2,2-dimetilciklopropankarboksilatcipermethrin cis/trans +/- 40/60 |
| Italian italiano | cipermetrina (ISO) 3-(2,2-diclorovinil)-2,2-dimetilciclopropancarbossilato di α-ciano-3-fenossibenzilecipermetrina cis/trans +/- 40/60 |
| Latvian latviešu | cipermetrīns (ISO) α-ciān-3-fenoksibenzil-3-(2,2-dihlorvinil)-2,2-dimetilciklopropānkarboksilātscipermetrīns, cis / trans , +/-40/60 |
| Lithuanian lietuvių | cipermetrinas (ISO) α-cian-3-fenoksibenzilo 3-(2,2-dichlorvinil)-2,2-dimetilciklopropankarboksilatassipermetrinas cis:trans +/- 40:60 |
| Hungarian magyar | cipermetrin (ISO) α-ciano-3-fenoxibenzil-3-(2,2-diklórvinil)-2,2-dimetilciklopropánkarboxilátcipermetrin cisz/transz+/- 40/60 |
| Maltese Malti | ċipermetrina (ISO) α-ċjano-3-fenossibenżil 3-(2,2-diklorovinil)-2,2-dimetilċiklopropankarbossilatċipermetrina cis/trans +/- 40/60 |
| Dutch Nederlands | cypermethrin (ISO) α-cyaan-3-fenoxybenzyl 3-(2,2-dichloorvinyl)-2,2-dimethylcyclopropaan-carboxylaatcypermethrin cis/trans +/- 40/60 |
| Polish polski | cypermetryna (ISO) α-cyjano-3-fenoksybenzylo 3-(2,2-dichlorowinylo)-2,2-dimetylocyklopropanokarboksylancypermetryna cis/trans +/- 40/60 |
| Portuguese português | cipermetrina (ISO) 3-(2,2-diclorovinil)-2,2-dimetilciclopropanocarboxilato de α-ciano-3-fenoxibenzilocipermetrina cis/trans +/– 40/60 |
| Romanian română | permetrin (ISO) 3-(2,2-diclorovinil)-2,2-dimetilciclopropancarboxilat de α-ciano-3-fenoxibenzilcipermetrin cis/trans +/- 40/60 |
| Slovak slovenčina | cypermetrín (ISO), (3-fenoxyfenyl)(kyano) metyl-3-(2,2-dichlórvinyl)-2,2-dimetylcyklopropánkarboxylát cypermetrín cis:trans +/– 40/60 |
| Slovenian slovenščina | cipermetrin (ISO) α-ciano-3-fenoksibenzil 3-(2,2-diklorovinil)-2,2-dimetilciklopropankarboksilatcipermetrin cis/trans +/– 40/60 |
| Finnish suomi | sypermetriini (ISO) α-syaani-3-fenoksibentsyyli-3-(2,2-dikloorivinyyli)-2,2-dimetyylisyklopropaanikarboksylaattisypermetriini cis/trans +/- 40/60 |
| Swedish svenska | cypermetrin (ISO) α-cyano-3-fenoxibensyl-3-(2,2-diklorvinyl)-2,2-dimetylcyklopropankarboxylatcypermetrin cis/trans +/- 40/60 |
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
Cypermethrin GHS label elements
Everything CLP Annex VI fixes for Cypermethrin, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Cypermethrin
- Harmful if inhaled.
- Harmful if swallowed.
- May cause respiratory irritation.
- 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.
- 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.
- 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 Cypermethrin in the GHS label constructor →
07 · Health hazards
Cypermethrin health hazards and exposure limits
Cypermethrin 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
Cypermethrin 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.
Cypermethrin melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 70 °C (158 °F) | HSDB | |
| 70 °C (158 °F) | range, midpoint shown | HSDB |
Cypermethrin density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.1 g/cm³ | ICSC | |
| 1.25 g/cm³ | at 20 °C | HSDB |
Cypermethrin solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in methanol, acetone, xylene, dichloromethane | HSDB | |
| Soluble in methanol and methylene dichloride | HSDB | ||
| In acetone, chloroform, cyclohexanone, xylene greater than 450, ethanol 337, hexane 103 (all in g/L at 20 °C). | at 20 °C | HSDB |
Cypermethrin vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 1.7e-9 mmHg | OSHA | |
| 1.7e-9 mmHg | at 20 °C | HSDB | |
| Vapor pressure, Pa at 20 °C: | at 20 °C | ICSC |
Cypermethrin vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 1.25 (air = 1) | OSHA |
Cypermethrin corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | Non-corrosive to metals | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Cypermethrin storage and handling
Cypermethrin safe storage
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Keep in a well-ventilated room.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Cypermethrin storage conditions
Store technical material and formulations away from heat, under lock and key, and out of the reach of children, animals, and unauthorized personnel. Store in an area designated for insecticide storage, preferably without drains. Store away from other chemicals, foodstuffs, and animal feed.
Source: Hazardous Substances Data Bank (HSDB)
Cypermethrin incompatible materials
... Incompatible with lime & ordinary soaps because acids & alkalies speed up processes of hydrolysis. /Pyrethrins/
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Cypermethrin in the storage compatibility matrix →
10 · Questions
Cypermethrin — frequently asked questions
What is the CAS number of Cypermethrin?
The CAS number of Cypermethrin is 52315-07-8. Its EC number is 257-842-9.
What is the chemical formula of Cypermethrin?
The molecular formula of Cypermethrin is C22H19Cl2NO3 and its molecular weight is 416.3 g/mol.
What does a Cypermethrin label have to show?
Under CLP Annex VI the label for Cypermethrin carries the pictograms Exclamation mark, Health hazard and Environment and the signal word is Warning.
Is Cypermethrin flammable?
CLP Annex VI assigns Cypermethrin 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 Cypermethrin a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Cypermethrin. 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 Cypermethrin?
The melting point reported for Cypermethrin is 70 °C (158 °F) (HSDB).
How should Cypermethrin be stored?
Store technical material and formulations away from heat, under lock and key, and out of the reach of children, animals, and unauthorized personnel. Store in an area designated for insecticide storage, preferably without drains. Store away from other chemicals, foodstuffs, and animal feed. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Cypermethrin
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