Substance profile
Alachlor
Alachlor is a colorless to white crystalline solid and is odorless.
01 · Identification
What Alachlor is
Alachlor is a colorless to white crystalline solid and is odorless. Its molecular formula is C14H20ClNO2 and its molecular weight is 269.77 g/mol. It boils at 400 °C, melts at 40 °C.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Alachlor identifiers and molecular data
Alachlor CAS number and EC number
Alachlor molecular formula and molecular weight
Other names for Alachlor
- alachlor (ISO)
- 2-chloro-2',6'-diethyl-N-(methoxymethyl)acetanilide
03 · GHS classification
Alachlor hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Alachlor pictograms and signal word
Alachlor hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Acute toxicity - oral GHS chapter 3.1 | Category 4 | H302 | GHS07 |
| Skin sensitisation GHS chapter 3.4 | Category 1 or 1A or 1B | H317 | GHS07 |
| Carcinogenicity GHS chapter 3.6 | Category 2 | H351 | 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 |
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.
Alachlor hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H302 | Harmful if swallowed. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
This page lists only the codes assigned to Alachlor. 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 Alachlor
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 Alachlor 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
Alachlor precautionary statements
CLP Annex VI assigns 14 precautionary statements to Alachlor. 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
Alachlor 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 | алахлор (ISO) 2′,6′-диетил- N -(метоксиметил)-2-хлороацетанилид |
| Spanish español | Alacloro (ISO) 2-cloro-2',6'-dietil- N -(metoximetil)acetanilida |
| Czech čeština | alachlor (ISO) 2',6'-diethyl- N -(methoxymethyl)chloracetanilid |
| Danish dansk | alachlor (ISO) 2-chlor-2',6'-diethyl- N- (methoxymethyl)acetanilid |
| German Deutsch | Alachlor (ISO) 2-Chlor-2',6'-diethyl- N -(methoxymethyl)acetanilid |
| Estonian eesti | alakloor (ISO) 2-kloro-2',6'-dietüül- N -(metoksümetüül)atseetaniliid |
| Greek ελληνικά | alachlor (αλαχλώριο) (ISO) 2-χλωρο-2′,6′-διαθυλο- N -(μεθοξυμεθυλ)ακετανιλίδιο |
| English English | alachlor (ISO) 2-chloro-2',6'-diethyl- N -(methoxymethyl)acetanilide |
| French français | alachlore (ISO) 2-chloro-2',6'-diéthyl- N -(méthoxyméthyl)acétanilide |
| Croatian hrvatski | alaklor (ISO) 2-klor-2',6'-dietil- N -(metoksimetil)acetanilid |
| Italian italiano | alacloro (ISO) 2-cloro-2',6'-dietil- N -(metossimetil)acetanilide |
| Latvian latviešu | alahlors (ISO) 2-hlor-2',6'-dietil- N -(metoksimetil)acetanilīds |
| Lithuanian lietuvių | alachloras (ISO) 2-chlor-2',6'-dietil- N -(metoksimetil)acetanilidas |
| Hungarian magyar | alaklór (ISO) 2-klór-2’,6’-dietil- N -(metoximetil)acetanilid |
| Maltese Malti | alaklor (ISO) 2-kloro-2',6'-dietil- N -(metossimetil)aċetanilid |
| Dutch Nederlands | alachloor (ISO) 2-chloor-2',6'-diëthyl- N -(methoxymethyl)aceetanilide |
| Polish polski | alachlor (ISO) 2',6'-dietylo- N -(metoksymetylo)chloroacetanilid |
| Portuguese português | alacloro (ISO) 2-cloro-2',6'-dietil- N -(metoximetil)acetanilida |
| Romanian română | alaclor (ISO) 2-cloro-2',6'-dietil- N -(metoximetil)acetanilidă |
| Slovak slovenčina | alachlór (ISO) 2',6'-dietyl-2-chlór- N -(metoxymetyl)acetanilid |
| Slovenian slovenščina | alaklor (ISO) 2-kloro-2',6'-dietil- N -(metoksimetil)acetanilid |
| Finnish suomi | alakloori (ISO) 2-kloori-2',6'-dietyyli- N -(metoksimetyyli)asetanilidi |
| Swedish svenska | alaklor (ISO) 2-klor-2',6'-dietyl- N -(metoximetyl)acetanilid |
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
Alachlor GHS label elements
Everything CLP Annex VI fixes for Alachlor, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Alachlor
- Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Harmful if swallowed.
- May cause an allergic skin reaction.
- Very toxic to aquatic life.
- Very toxic to aquatic life with long lasting effects.
- Obtain special instructions before use.
- Avoid breathing dust/fume/gas/mist/vapours/spray.
- Do not eat, drink or smoke when using this product.
- Contaminated work clothing should not be allowed out of the workplace.
- Avoid release to the environment.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- IF exposed or concerned:
- Call a POISON CENTER/doctor/… if you feel unwell.
- Get medical advice/attention.
- Rinse mouth.
- If skin irritation or rash occurs:
- Collect spillage.
- Dispose of contents/container to …
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Alachlor in the GHS label constructor →
07 · Health hazards
Alachlor health hazards and exposure limits
Alachlor carcinogenicity classification
Cancer Classification: Likely to be Carcinogenic to Humans (High Doses); Not Likely to be Carcinogenic to Humans (Low Doses)
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
Alachlor 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.
Alachlor boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 400 °C (752 °F) | above this value, at 759.813 mmHg | ICSC |
| 100 °C (212 °F) | at 0.02 mmHg (reduced pressure) | HSDB |
Alachlor melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 40 °C (104 °F) | ICSC | |
| 40.5 °C (104.9 °F) | range, midpoint shown | HSDB |
Alachlor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.1 g/cm³ | ICSC | |
| 1.133 g/cm³ | OSHA | ||
| 1.133 g/cm³ | at 25 °C | HSDB |
Alachlor solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Soluble in diethyl ether, acetone, benzene, chloroform, ethanol, ethyl acetate; sparingly soluble in heptane | HSDB | |
| In water, 240 mg/L at 25 °C | at 25 °C | HSDB | |
| Solubility in water, g/100ml at 25 °C: 0.02 (very poor) | at 25 °C | ICSC |
Alachlor vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.000022 mmHg | OSHA | |
| 0.000022 mmHg | at 25 °C | HSDB |
Alachlor flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 137 °C (278.6 °F) | ICSC |
Alachlor vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 9.3 (air = 1) | ICSC |
Alachlor corrosivity
| Property | Value | Conditions | Source |
|---|---|---|---|
| Corrosivity | NO CORROSION TO NUMBER 316 & 304 STAINLESS STEEL, ALUMINUM & HERESITE; CORROSIVE TO STEEL & BLACK IRON | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
Alachlor storage and handling
Alachlor safe storage
Provision to contain effluent from fire extinguishing. Separated from strong oxidants and incompatible materials. Keep in a well-ventilated room. Store only in original container. Store in an area without drain or sewer access.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
Alachlor storage conditions
Minimum storage temperature: 32 °F. Incompatible materials for storage: mild steel, PVC. Keep locked up and out of the reach of children. Keep away from living quarters. Keep away from food, drink and animal feed. Keep only in the original container. Keep away from sources of ignition (sparks, flame, etc.). Keep container tightly closed in a cool, well-ventilated place. Protect from frost. ... If frozen, place in warm room and shake frequently to put back into solution. /INTRRO/
Source: Hazardous Substances Data Bank (HSDB)
Alachlor incompatible materials
Strong oxidizers. Corrosive to iron and steel.
Source: Hazardous Substances Data Bank (HSDB)
Alachlor reactivity
A halogenated acetamide. Organic amides/imides react with azo and diazo compounds to generate toxic gases. Flammable gases are formed by the reaction of organic amides/imides with strong reducing agents. Amides are very weak bases (weaker than water). Imides are less basic yet and in fact react with strong bases to form salts. That is, they can react as acids. Mixing amides with dehydrating agents such as P2O5 or SOCl2 generates the corresponding nitrile. The combustion of these compounds generates mixed oxides of nitrogen (NOx).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Alachlor in the storage compatibility matrix →
10 · Questions
Alachlor — frequently asked questions
What is the CAS number of Alachlor?
The CAS number of Alachlor is 15972-60-8. Its EC number is 240-110-8.
What is the chemical formula of Alachlor?
The molecular formula of Alachlor is C14H20ClNO2 and its molecular weight is 269.77 g/mol.
What does a Alachlor label have to show?
Under CLP Annex VI the label for Alachlor carries the pictograms Health hazard, Exclamation mark and Environment and the signal word is Warning.
Is Alachlor flammable?
CLP Annex VI assigns Alachlor 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 137 °C (278.6 °F) (ICSC).
Is Alachlor a carcinogen?
CLP Annex VI assigns Alachlor H351 — suspected of causing cancer. That is category 2: the evidence points that way but is not conclusive. IARC places it in Group 2A: probably carcinogenic to humans.
What is the boiling point of Alachlor?
The boiling point reported for Alachlor is 400 °C (752 °F), above this value, at 759.813 mmHg (ICSC).
What is the melting point of Alachlor?
The melting point reported for Alachlor is 40 °C (104 °F) (ICSC).
How should Alachlor be stored?
Minimum storage temperature: 32 °F. Incompatible materials for storage: mild steel, PVC. Keep locked up and out of the reach of children. Keep away from living quarters. Keep away from food, drink and animal feed. Keep only in the original container. Keep away from sources of ignition (sparks, flame, etc.). Keep container tightly closed in a cool, well-ventilated place. Protect from frost. ... If frozen, place in warm room and shake frequently to put back into solution. /INTRRO/ (Hazardous Substances Data Bank (HSDB))
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