Substance profile
Chlorthiophos I
Chlorthiophos I is a brown liquid with crystals at low temp.
01 · Identification
What Chlorthiophos I is
Chlorthiophos I is a brown liquid with crystals at low temp. Its molecular formula is C11H15Cl2O3PS2 and its molecular weight is 361.2 g/mol. It boils at 150 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Chlorthiophos I identifiers and molecular data
Chlorthiophos I CAS number and EC number
Chlorthiophos I molecular formula and molecular weight
Other names for Chlorthiophos I
- chlorthiophos (ISO)
- [isomeric reaction mass in which O-2,5-dichlorophenyl-4-methylthiophenyl O,O-diethyl phosphorothioate predominates]
03 · GHS classification
Chlorthiophos I hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Chlorthiophos I pictograms and signal word
Chlorthiophos I 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 3 | H311 | 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.
Chlorthiophos I hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H300 | Fatal if swallowed. |
| H311 | Toxic in contact with skin. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Chlorthiophos I. 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 Chlorthiophos I
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 Chlorthiophos I 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
Chlorthiophos I precautionary statements
CLP Annex VI assigns 10 precautionary statements to Chlorthiophos I. 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
Chlorthiophos I 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 | хлортиофос (ISO) |
| Spanish español | Clortiofós (ISO) |
| Czech čeština | chlorthiofos (ISO) |
| Danish dansk | chlorthiophos (ISO) |
| German Deutsch | Chlorthiophos (ISO) |
| Estonian eesti | kloortiofoss (ISO) |
| Greek ελληνικά | chlorthiophos (χλωροθειοφός) (ISO) |
| English English | chlorthiophos (ISO) |
| French français | chlorthiophos (ISO) |
| Croatian hrvatski | klortiofos (ISO) |
| Italian italiano | clortiofos (ISO [miscela di reazione isomerica nella quale predomina il fosforotioato di O-2,5-diclorofenil-4-metiltiofenile e O, O-dietile]) |
| Latvian latviešu | hlortiofoss (ISO) |
| Lithuanian lietuvių | chlortiofosas (ISO) |
| Hungarian magyar | klórtiofosz (ISO) |
| Maltese Malti | klortijofos (ISO) |
| Dutch Nederlands | chloorthiofos (ISO) |
| Polish polski | chlortiofos (ISO) |
| Portuguese português | clortiofos (ISO) |
| Romanian română | clortiofos (ISO) |
| Slovak slovenčina | chlórtiofos (ISO) |
| Slovenian slovenščina | klortiofos (ISO) |
| Finnish suomi | klortiofossi (ISO) isomeerinen reaktiomassa, jossa hallitsevana O -2,5-dikloorifenyyli-4-metyylitiofenyyli- O , O -dietyylifosforotioaatti |
| Swedish svenska | klortiofos (ISO) |
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
Chlorthiophos I GHS label elements
Everything CLP Annex VI fixes for Chlorthiophos I, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Chlorthiophos I
- Fatal if swallowed.
- Toxic in contact with skin.
- 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 Chlorthiophos I in the GHS label constructor →
07 · Health hazards
Chlorthiophos I health hazards and exposure limits
Chlorthiophos I hazard summary
A cholinesterase inhibitor; May be absorbed through skin; [CAMEO] Effects in high-dose animal studies include convulsions, dyspnea, and inhibition of cholinesterase; [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
Chlorthiophos I 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.
Chlorthiophos I boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 150 °C (302 °F) | at 760 mmHg | DOE PAC |
| 150 °C (302 °F) | at 0.001 mmHg (reduced pressure) | HSDB | |
| 155.28 °C (311.5 °F) | range, midpoint shown, at 0.013 mmHg (reduced pressure) | CAMEO |
Chlorthiophos I density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.345 g/cm³ | at 20 °C | CAMEO |
Chlorthiophos I solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Practically insol in water, sol in most organic solvents | HSDB |
Chlorthiophos I vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.0004 mmHg | at 25 °C | CAMEO |
| 0.0000024 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Chlorthiophos I storage and handling
Chlorthiophos I 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)
Chlorthiophos I reactivity
Organophosphates, such as CHLORTHIOPHOS, 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 Chlorthiophos I in the storage compatibility matrix →
10 · Questions
Chlorthiophos I — frequently asked questions
What is the CAS number of Chlorthiophos I?
The CAS number of Chlorthiophos I is 21923-23-9. Its EC number is 244-663-6.
What is the chemical formula of Chlorthiophos I?
The molecular formula of Chlorthiophos I is C11H15Cl2O3PS2 and its molecular weight is 361.2 g/mol.
What does a Chlorthiophos I label have to show?
Under CLP Annex VI the label for Chlorthiophos I carries the pictograms Skull and crossbones and Environment and the signal word is Danger.
Is Chlorthiophos I flammable?
CLP Annex VI assigns Chlorthiophos I 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 Chlorthiophos I a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Chlorthiophos I. 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 Chlorthiophos I?
The boiling point reported for Chlorthiophos I is 150 °C (302 °F), at 760 mmHg (DOE PAC).
How should Chlorthiophos I 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 Chlorthiophos I
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