Substance profile
Mevinphos
Mevinphos is a pale yellow liquid with a weak odor.
01 · Identification
What Mevinphos is
Mevinphos is a pale yellow liquid with a weak odor. Its molecular formula is C7H13O6P and its molecular weight is 224.15 g/mol. It boils at 280 °C, melts at 6.7 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Mevinphos identifiers and molecular data
Mevinphos CAS number and EC number
Mevinphos molecular formula and molecular weight
Other names for Mevinphos
- mevinphos (ISO)
- 2-methoxycarbonyl-1-methylvinyl dimethyl phosphate
03 · GHS classification
Mevinphos hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Mevinphos pictograms and signal word
Mevinphos hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 1 or 2 | H300 | GHS06 |
| Acute toxicity - dermal GHS chapter 3.1 | Category 1 or 2 | H310 | GHS06 |
| 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.
Mevinphos hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H310 | Fatal in contact with skin. |
| H300 | Fatal 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 Mevinphos. 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 Mevinphos
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 Mevinphos 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
Mevinphos precautionary statements
CLP Annex VI assigns 10 precautionary statements to Mevinphos. 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
Mevinphos 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 | мевинфос (ISO) 1-метил-2-метоксикарбонилвинилов диметилов фосфат |
| Spanish español | Mevinfós (ISO) fosfato de 2-metoxicarbonil-1-metilvinilo y dimetilo |
| Czech čeština | mevinfos (ISO) 2-(methoxykarbonyl)-1-methylvinyl-dimethyl-fosfát |
| Danish dansk | mevinphos (ISO) 2-methoxycarbonyl-1-methylvinyldimethylphosphat |
| German Deutsch | Mevinphos (ISO) 2-Methoxycarbonyl-1-methylvinyldimethylphosphat |
| Estonian eesti | mevinfoss (ISO) 2-metoksükarbonüül-1-metüülvinüüldimetüülfosfaat |
| Greek ελληνικά | mevinphos (μεβινφός) (ISO) φωσφορικός 2-μεθοξυκαρβονυλο-1-μεθυλοβινυλο-διμεθυλεστέρας |
| English English | mevinphos (ISO) 2-methoxycarbonyl-1-methylvinyl dimethyl phosphate |
| French français | mévinphos (ISO) phosphate de 2-méthoxycarbonyl-1-méthylvinyle et de diméthyle |
| Croatian hrvatski | mevinfos (ISO) 2-metoksikarbonil-1-metil-vinil-dimetil-fosfat |
| Italian italiano | mevinfos (ISO) fosfato di dimetile e 1-metil-2-metossicarbonilvinile |
| Latvian latviešu | mevinfoss (ISO) 2-metoksikarbonil-1-metilvinildimetilfosfāts |
| Lithuanian lietuvių | mevinfosas (ISO) 2-metoksikarbonil-1-metilvinildimetilfosfatas |
| Hungarian magyar | mevinfosz (ISO) 2-metoxikarbonil-1-metilvinil-dimetil-foszfát |
| Maltese Malti | mevinfos (ISO) fosfat tad-dimetil ta’ 2-metossikarbonil-1-metilvinil |
| Dutch Nederlands | mevinfos (ISO) 2-methoxycarbonyl-1-methylvinyldimethylfosfaat |
| Polish polski | mewinfos (ISO) fosforan 2-(metoksykarbonylo)-1-metylowinylu-dimetylu |
| Portuguese português | mevinfos (ISO) fosfato de 1-metil-2-(metoxicarbonil)vinilo e de dimetilo |
| Romanian română | mevinfos (ISO) fosfat de 2-metoxicarbonil-1-metilvinil și dimetil |
| Slovak slovenčina | mevinfos (ISO) [2-(metoxykarbonyl)-1-metylvinyl]-dimetyl-fosfát |
| Slovenian slovenščina | mevinfos (ISO) 2-metoksikarbonil-1-metilvinil dimetil fosfat |
| Finnish suomi | mevinfossi (ISO) 2-metoksikarbonyyli-1-metyylivinyylidimetyylifosfaatti |
| Swedish svenska | mevinfos (ISO) 2-metoxikarbonyl-1-metylvinyldimetylfosfat |
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
Mevinphos GHS label elements
Everything CLP Annex VI fixes for Mevinphos, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Mevinphos
- Fatal in contact with skin.
- Fatal 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:
- Immediately call a POISON CENTER/doctor/…
- 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 Mevinphos in the GHS label constructor →
07 · Health hazards
Mevinphos health hazards and exposure limits
Mevinphos hazard summary
It is applied 1-10 days before harvest; it dissipates quickly. [HSDB] Skin sensitization occurs rarely. [Kanerva, p. 1817] 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
Mevinphos occupational exposure limits
| Limit | Value | Source |
|---|---|---|
| PEL | 0.1 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| PEL | 0.1 mg/m³ | Occupational Safety and Health Administration (OSHA) |
| PEL | TWA 0.1 mg/m3 [skin] See Appendix G | The National Institute for Occupational Safety and Health (NIOSH) |
| REL | 0.01 ppm (0.1 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| REL | 0.03 ppm (0.3 mg/m³) | Occupational Safety and Health Administration (OSHA) |
| REL | TWA 0.01 ppm (0.1 mg/m3) ST 0.03 ppm (0.3 mg/m3) [skin] | The National Institute for Occupational Safety and Health (NIOSH) |
| IDLH | 4 ppm (NIOSH, 2024) | CAMEO Chemicals |
| IDLH | 36.0 [mg/m3] | Haz-Map, Information on Hazardous Chemicals and Occupational Diseases |
| IDLH | 4 ppm | Hazardous Substances Data Bank (HSDB) |
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
Mevinphos 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.
Mevinphos boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 280 °C (536 °F) | at 760 mmHg | DOE PAC |
| 106.75 °C (224.2 °F) | range, midpoint shown, at 1 mmHg (reduced pressure) | HSDB | |
| 106.94 °C (224.5 °F) | range, midpoint shown, at 1 mmHg (reduced pressure) | CAMEO |
Mevinphos melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 6.67 °C (44 °F) | NIOSH | |
| 6.9 °C (44.4 °F) | trans | ICSC | |
| 6.7 °C (44.1 °F) | DOE PAC |
Mevinphos density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.25 g/cm³ | NIOSH | |
| 1.25 g/cm³ | at 20 °C | HSDB |
Mevinphos solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | water solubility = 6.0X10+5 mg/l | HSDB | |
| Miscible | NIOSH |
Mevinphos vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.003 mmHg | NIOSH | |
| 0.0029 mmHg | at 21.11 °C | CAMEO | |
| 127500 mmHg | at 20 °C | HSDB |
Mevinphos flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 175 °C (347 °F) | TAG OPEN CUP | HSDB |
| 175 °C (347 °F) | NIOSH | ||
| 79.44 °C (175 °F) | CAMEO |
Mevinphos lower explosive limit (LEL)
| Property | Value | Conditions | Source |
|---|---|---|---|
| Lower explosive limit (LEL) | Class IIIB Combustible Liquid: Fl.P. at or above 200 °F. | NIOSH |
Mevinphos corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | IT IS CORROSIVE TO CAST IRON, MILD AND SOME STAINLESS STEELS, & BRASS | HSDB | |
| Phosdrin will attack some forms of plastics, rubber, and coatings. | HSDB | ||
| It is noncorrosive to glass and many plastics but passes slowly through thin films of polythene. | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Source notes
Further notes on Mevinphos
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
MISCIBLE WITH WATER, ACETONE, BENZENE, CARBON TETRACHLORIDE, CHLOROFORM, ETHYL AND ISOPROPYL ALCOHOL, TOLUENE, XYLENE; 1 G DISSOLVES IN 20 ML CARBON DISULFIDE AND IN 20 ML KEROSENE; PRACTICALLY INSOL IN HEXANE
Source: HSDB
10 · Handling and storage
Mevinphos storage and handling
Mevinphos safe storage
Separated from food and feedstuffs and strong oxidants. Keep in a well-ventilated room. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Mevinphos 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)
Mevinphos incompatible materials
Contact with strong oxidizers may cause fires and explosions.
Source: Hazardous Substances Data Bank (HSDB)
Mevinphos reactivity
Organophosphates, such as MEVINPHOS, 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 Mevinphos in the storage compatibility matrix →
11 · Questions
Mevinphos — frequently asked questions
What is the CAS number of Mevinphos?
The CAS number of Mevinphos is 7786-34-7. Its EC number is 232-095-1.
What is the chemical formula of Mevinphos?
The molecular formula of Mevinphos is C7H13O6P and its molecular weight is 224.15 g/mol.
What does a Mevinphos label have to show?
Under CLP Annex VI the label for Mevinphos carries the pictograms Skull and crossbones and Environment and the signal word is Danger.
Is Mevinphos flammable?
CLP Annex VI assigns Mevinphos 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 175 °C (347 °F), TAG OPEN CUP (HSDB).
Is Mevinphos a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Mevinphos. 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 Mevinphos?
The US occupational exposure limit reported for Mevinphos is 0.1 [mg/m3] (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 boiling point of Mevinphos?
The boiling point reported for Mevinphos is 280 °C (536 °F), at 760 mmHg (DOE PAC).
What is the melting point of Mevinphos?
The melting point reported for Mevinphos is 6.67 °C (44 °F) (NIOSH).
How should Mevinphos 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))
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