Substance profile
Cyanophos
Cyanophos is a yellow to reddish-yellow transparent liquid with a faint characteristic odor.
01 · Identification
What Cyanophos is
Cyanophos is a yellow to reddish-yellow transparent liquid with a faint characteristic odor. It melts at 14.5 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Cyanophos identifiers and molecular data
Cyanophos CAS number and EC number
Other names for Cyanophos
- cyanophos (ISO)
- O-4-cyanophenyl O,O-dimethyl phosphorothioate
03 · GHS classification
Cyanophos hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Cyanophos pictograms and signal word
Cyanophos hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 4 | H312 | 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 |
Cyanophos hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H312 | Harmful in contact with skin. |
| 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 Cyanophos. 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 Cyanophos
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 Cyanophos 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
Cyanophos precautionary statements
CLP Annex VI assigns 10 precautionary statements to Cyanophos. 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
Cyanophos 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 | цианофос (ISO) O -4-цианофенилов О , О -диметилов фосфоротиоат |
| Spanish español | Cianofós (ISO) fosforotioato de O -4-cianofenilo y O , O -dimetilo |
| Czech čeština | kyanofos (ISO) O -(4-kyanfenyl)- O, O -dimethyl-fosforothioát |
| Danish dansk | cyanophos (ISO) O- 4-cyanophenyl- O, O- dimethylthiophosphat |
| German Deutsch | Cyanophos (ISO) O -4-Cyanphenyl- O, O -dimethylphosphorothioat |
| Estonian eesti | tsüanofoss (ISO) O -4-tsüanofenüül- O , O -dimetüülfosforotioaat |
| Greek ελληνικά | cyanophos (κυανοφός) (ISO) θειοφωσφορικό O -4-κυανοφαινύλιο O , O -διμεθύλιο |
| English English | cyanophos (ISO) O -4-cyanophenyl O , O -dimethyl phosphorothioate |
| French français | cyanophos (ISO) phosphorothioate de O -4-cyanophényle et de O, O -diméthyle |
| Croatian hrvatski | cijanofos (ISO) O -4-cijanofenil- O , O -dimetil-fosforotioat |
| Italian italiano | cianofos (ISO) tiofosfato di O-4-cianofenile e O, O-dimetile |
| Latvian latviešu | ciānfoss (ISO) O -4-ciānfenil- O , O -dimetilfosfortioāts |
| Lithuanian lietuvių | cianofosas (ISO) O -4-cianfenil- O , O -dimetiltiofosfatas |
| Hungarian magyar | cianofosz (ISO) O -4-cianofenil- O , O -dimetil-tiofoszfát |
| Maltese Malti | ċjanofos (ISO) fosforotijoat ta’ O -4-ċjanofenil O , O -dimetil |
| Dutch Nederlands | cyanofos (ISO) O -4-cyaanfenyl- O , O -dimethylthiofosfaat |
| Polish polski | cyjanofos (ISO) tiofosforan O -4-cyjanofenylu- O , O -dimetylu |
| Portuguese português | cianofos (ISO) tiofosfato de O -4-cianofenilo e de O , O -dimetilo |
| Romanian română | cianofos (ISO) tiofosfat de O -4-cianofenil și de O, O -dimetil |
| Slovak slovenčina | kyanofos (ISO) O -(4-kyanofenyl)- O, O -dimetyl-fosforotioát |
| Slovenian slovenščina | cianofos (ISO) O -4-cianofenil O , O -dimetil fosforotioat |
| Finnish suomi | syanofossi (ISO) O -4-syanofenyyli- O , O -dimetyylifosforotioaatti |
| Swedish svenska | cyanofos (ISO) O -4-cyanofenyl- O , O -dimetylfosfortioat |
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
Cyanophos GHS label elements
Everything CLP Annex VI fixes for Cyanophos, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Cyanophos
- Harmful in contact with skin.
- Harmful if swallowed.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- 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 ON SKIN:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Rinse mouth.
- Wash with plenty of water/…
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Cyanophos in the GHS label constructor →
07 · Health hazards
Cyanophos health hazards and exposure limits
Cyanophos hazard summary
A cholinesterase inhibitor; [Merck Index] Effects in high-dose animal studies include convulsions and spastic paralysis; [RTECS] The average of two baseline respective cholinesterase activity determinations three days apart, with no exposures to enzyme inhibiting pesticides for at least 30 days, is recommended for each worker prior to exposure to cholinesterase inhibitors because of large inter-individual differences in published baseline values. To be established at least once a year. Removal from workplace exposures is recommended until the cholinesterase activity returns to within 20% of baseline. [TLVs and BEIs]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
Cyanophos 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.
Cyanophos boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 119.5 °C (247.1 °F) | range, midpoint shown, at 0.09 mmHg (reduced pressure) | HSDB |
| 119.44 °C (247 °F) | range, midpoint shown, at 0.09 mmHg (reduced pressure) | CAMEO |
Cyanophos melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 14.5 °C (58.1 °F) | range, midpoint shown | HSDB |
| 14.44 °C (58 °F) | range, midpoint shown | CAMEO |
Cyanophos density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.26 g/cm³ | range, midpoint shown, at 25 °C | HSDB |
Cyanophos solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Very soluble in methanol, ethanol, acetone & chloroform. Sparingly soluble in n-hexane, kerosene. | HSDB | |
| Miscible in alcohols, benzene, chloroform, ketones, toluene, xylene. | HSDB | ||
| Solubility: 46 mg/l water at 30 °C; 27 g/kg hexane at 20 °C | at 30 °C, Technical grade | HSDB |
Cyanophos vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 787600 mmHg | at 20 °C | HSDB |
| 0.0008 mmHg | at 20 °C | CAMEO |
Cyanophos flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 104 °C (219.2 °F) | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Cyanophos storage and handling
Cyanophos storage conditions
Rooms used for storage only should be soundly constructed & fitted with secure locks. Floors should be kept clear & pesticides clearly identified. If repacking is carried out in storage rooms, adequate light should be available; floors should be impervious & sound ... . /Pesticides/
Source: Hazardous Substances Data Bank (HSDB)
Cyanophos reactivity
Organophosphates, such as CYANOPHOS, are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Cyanophos in the storage compatibility matrix →
10 · Questions
Cyanophos — frequently asked questions
What is the CAS number of Cyanophos?
The CAS number of Cyanophos is 2636-26-2. Its EC number is 220-130-3.
What does a Cyanophos label have to show?
Under CLP Annex VI the label for Cyanophos carries the pictograms Exclamation mark and Environment and the signal word is Warning.
Is Cyanophos flammable?
CLP Annex VI assigns Cyanophos 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 104 °C (219.2 °F) (HSDB).
Is Cyanophos a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Cyanophos. 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 Cyanophos?
The boiling point reported for Cyanophos is 119.5 °C (247.1 °F), range, midpoint shown, at 0.09 mmHg (reduced pressure) (HSDB).
What is the melting point of Cyanophos?
The melting point reported for Cyanophos is 14.5 °C (58.1 °F), range, midpoint shown (HSDB).
How should Cyanophos be stored?
Rooms used for storage only should be soundly constructed & fitted with secure locks. Floors should be kept clear & pesticides clearly identified. If repacking is carried out in storage rooms, adequate light should be available; floors should be impervious & sound ... . /Pesticides/ (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Cyanophos
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