Substance profile
Clopyralid
Clopyralid is a white crystalline solid and is odorless.
01 · Identification
What Clopyralid is
Clopyralid is a white crystalline solid and is odorless. Its molecular formula is C6H3Cl2NO2 and its molecular weight is 192 g/mol. It melts at 152 °C.
Under the GHS it carries the signal word Danger.
02 · Identifiers
Clopyralid identifiers and molecular data
Clopyralid CAS number and EC number
Clopyralid molecular formula and molecular weight
Other names for Clopyralid
- clopyralid (ISO)
- 3,6-dichloropyridine-2-carboxylic acid
03 · GHS classification
Clopyralid hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Clopyralid pictograms and signal word
Clopyralid hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 1 | H318 | GHS05 |
Clopyralid hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H318 | Causes serious eye damage. |
This page lists only the codes assigned to Clopyralid. 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 Clopyralid
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 Clopyralid 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
Clopyralid precautionary statements
CLP Annex VI assigns 4 precautionary statements to Clopyralid. 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.
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
Clopyralid 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 | клопиралид (ISO) 3,6-дихлоропиридин-2-карбоксилна киселина |
| Spanish español | Clopiralida (ISO) ácido 3,6-dicloropiridina-2-carboxílico |
| Czech čeština | klopyralid (ISO) 3,6-dichlorpyridin-2-karboxylová kyselina |
| Danish dansk | clopyralid (ISO) 3,6-dichlorpyridin-2-carboxylsyre |
| German Deutsch | Clopyralid (ISO) 3,6-Dichlorpyridine-2-carbonsäure |
| Estonian eesti | klopüraliid (ISO) 3,6-dikloropüridiin-2-karboksüülhape |
| Greek ελληνικά | clopyralid (κλοπυραλίδη) (ISO) 3,6-διχλωροπυριδινο-2-καρβοξυλικό οξύ |
| English English | clopyralid (ISO) 3,6-dichloropyridine-2-carboxylic acid |
| French français | clopyralid (ISO) acide 3,6-dichloropyridine-2-carboxylique |
| Croatian hrvatski | klopiralid (ISO) 3,6-diklorpiridin-2-karboksilna kiselina |
| Italian italiano | clopiralid (ISO) 3,6- acido 3,6-dicloropiridin-2-carbossilico |
| Latvian latviešu | klopiralīds (ISO) 3,6-dihlorpiridīn-2-karbonskābe |
| Lithuanian lietuvių | klopiralidas (ISO) 3,6-dichlorpiridin-2-karboksirūgštis |
| Hungarian magyar | klopiralid (ISO) 3,6-diklórpiridin-2-karbonsav |
| Maltese Malti | klopiralid (ISO) aċidu 3,6-dikloropiridin-2-karbossiliku |
| Dutch Nederlands | clopyralid (ISO) 3,6-dichloorpyridine-2-carbonzuur |
| Polish polski | chlopyralid (ISO) kwas 3,6-dichloropirydyno-2-karboksylowy |
| Portuguese português | clopiralide (ISO) ácido 3,6-dicloropiridina-2-carboxílico |
| Romanian română | clopiralid (ISO) acid 3,6-dicloropiridin-2-carboxilic |
| Slovak slovenčina | klopyralid (ISO) kyselina 3,6-dichlórpyridín-2-karboxylová |
| Slovenian slovenščina | klopiralid (ISO) 3,6-dikloropiridin-2-karboksilna kislina |
| Finnish suomi | klopyralidi (ISO) 3,6-diklooripyridiini-2-karboksyylihappo |
| Swedish svenska | klopyralid (ISO) 3,6-diklorpyridin-2-karboxylsyra |
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
Clopyralid GHS label elements
Everything CLP Annex VI fixes for Clopyralid, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
Clopyralid
- Causes serious eye damage.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF IN EYES:
- Immediately call a POISON CENTER/doctor/…
- Remove contact lenses, if present and easy to do. Continue rinsing.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Clopyralid in the GHS label constructor →
07 · Health hazards
Clopyralid health hazards and exposure limits
Clopyralid hazard summary
A skin, eye, and respiratory tract irritant; [ICSC] A severe eye irritant; [HSDB] Corrosive to eyes; [eChemPortal: ESIS] An irritant; May cause serious damage to eyes; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
Clopyralid carcinogenicity classification
Cancer Classification: Not Likely to be Carcinogenic to Humans
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
Clopyralid 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.
Clopyralid melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 151.5 °C (304.7 °F) | range, midpoint shown | HSDB |
Clopyralid solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | In water, 7.85X10+3 mg/L (distilled water); 188 g/L at pH 5, 143 g/L ay pH 7; 157 g/L at pH 9, all at 20 °C | at 20 °C | HSDB |
| Approximately 1000 ppm in water at 25 °C | at 25 °C | HSDB | |
| Solubility at 25 °C: > 25% w/w in methanol, acetone, xylene | at 25 °C | HSDB |
Clopyralid vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.00000998 mmHg | at 25 °C | HSDB |
| 0.000015 mmHg | at 25 °C | ICSC | |
| 0.000012 mmHg | Haz-Map |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Clopyralid storage and handling
Clopyralid safe storage
Do NOT store or transport in containers made from aluminium.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Clopyralid storage conditions
Do not store or transport in containers made from aluminium.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check Clopyralid in the storage compatibility matrix →
10 · Questions
Clopyralid — frequently asked questions
What is the CAS number of Clopyralid?
The CAS number of Clopyralid is 1702-17-6. Its EC number is 216-935-4.
What is the chemical formula of Clopyralid?
The molecular formula of Clopyralid is C6H3Cl2NO2 and its molecular weight is 192 g/mol.
What does a Clopyralid label have to show?
Under CLP Annex VI the label for Clopyralid carries the pictogram Corrosion and the signal word is Danger.
Is Clopyralid flammable?
CLP Annex VI assigns Clopyralid 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 Clopyralid a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Clopyralid. 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 Clopyralid?
The melting point reported for Clopyralid is 151.5 °C (304.7 °F), range, midpoint shown (HSDB).
How should Clopyralid be stored?
Do not store or transport in containers made from aluminium. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to Clopyralid
Keep going: substances starting with C, or search the whole database by name, CAS number, pictogram or signal word.