Substance profile
Methyl 2-chloropropanoate, (S)-
Methyl 2-chloropropanoate, (S)- is a chemical substance with the molecular formula C4H7ClO2.
01 · Identification
What Methyl 2-chloropropanoate… is
Methyl 2-chloropropanoate, (S)- is a chemical substance with the molecular formula C4H7ClO2. Its molecular formula is C4H7ClO2 and its molecular weight is 122.55 g/mol.
Under the GHS it carries the signal word Warning.
02 · Identifiers
Methyl 2-chloropropanoate… identifiers and molecular data
Methyl 2-chloropropanoate… CAS number and EC number
Methyl 2-chloropropanoate… molecular formula and molecular weight
Other names for Methyl 2-chloropropanoate…
- (S)-methyl-2-chloropropionate
03 · GHS classification
Methyl 2-chloropropanoate… hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
Methyl 2-chloropropanoate… pictograms and signal word
Methyl 2-chloropropanoate… hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Flammable liquids GHS chapter 2.6 | Category 3 | H226 | GHS02 |
| Serious eye damage/eye irritation GHS chapter 3.3 | Category 2A | H319 | GHS07 |
| Specific target organ toxicity - repeated exposure GHS chapter 3.9 | Category 2 | H373 | GHS08 |
Methyl 2-chloropropanoate… hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H226 | Flammable liquid and vapour. |
| H373 | May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H319 | Causes serious eye irritation. |
This page lists only the codes assigned to Methyl 2-chloropropanoate…. 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 Methyl 2-chloropropanoate…
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 Methyl 2-chloropropano… 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
Methyl 2-chloropropanoate… precautionary statements
CLP Annex VI assigns 14 precautionary statements to Methyl 2-chloropropanoate…. 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
Methyl 2-chloropropanoate… 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 | метилов ( S )-2-хлоропропионат |
| Spanish español | ( S )-2-Cloropropionato de metilo |
| Czech čeština | methyl-( S )-2-chlorpropanoát |
| Danish dansk | ( S )-methyl-2-chlorpropionat |
| German Deutsch | ( S )-Methyl-2-chlorpropionat |
| Estonian eesti | ( S )-metüül-2-kloropropionaat |
| Greek ελληνικά | ( S )-μεθυλο-2-χλωροπροπιονικό |
| English English | ( S )-methyl-2-chloropropionate |
| French français | ( S )-méthyl-2-chloropropionate |
| Croatian hrvatski | ( S )-metil-2-klorpropionat |
| Italian italiano | ( S )-2-cloropropionato di metilessilato |
| Latvian latviešu | ( S )-metil-2-hlorpropionāts |
| Lithuanian lietuvių | ( S )-metil-2-chlorpropionatas |
| Hungarian magyar | ( S )-metil-2-klórpropionát |
| Maltese Malti | ( S )-metil-2-kloropropjonat |
| Dutch Nederlands | ( S )-methyl-2-chloorpropionaat |
| Polish polski | ( S )-2-chloropropanian metylu |
| Portuguese português | 2-cloropropionato de ( S )-metilo |
| Romanian română | 2-cloropropionat de ( S )-metil |
| Slovak slovenčina | O -metyl-( S )-2-chlórpropanoát |
| Slovenian slovenščina | ( S )-metil-2-kloropropionat |
| Finnish suomi | ( S )-metyyli-2-klooripropionaatti |
| Swedish svenska | ( S )-metyl-2-klorpropionat |
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
Methyl 2-chloropropanoate… GHS label elements
Everything CLP Annex VI fixes for Methyl 2-chloropropanoate…, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Warning
Methyl 2-chloropropanoate…
- Flammable liquid and vapour.
- May cause damage to organs <or state all organs affected, if known> through prolonged or repeated exposure <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>.
- Causes serious eye irritation.
- Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
- Keep container tightly closed.
- Use explosion-proof [electrical/ventilating/lighting/…] equipment.
- Use only non-sparking tools.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Wash … thoroughly after handling.
- Do not eat, drink or smoke when using this product.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF IN EYES:
- Get medical advice/attention.
- Get medical advice/attention if you feel unwell.
- If eye irritation persists:
- Remove contact lenses, if present and easy to do. Continue rinsing.
- Store in a well-ventilated place.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open Methyl 2-chloropropanoate… in the GHS label constructor →
07 · Transport
Methyl 2-chloropropanoate… UN number and transport classification
Transport classification is a separate system from the GHS classification above. It decides how a package is marked and how a load may be carried; it does not follow from the workplace label, and the workplace label does not follow from it. The entries below are linked by CAS number, never by name.
Methyl 2-chloropropanoate… under UN 2933 — shipping name, class and packing group
Europe · ADR 2025, Table A
| Proper shipping name (3.1.2) | Class | Classification code | PG | Labels (column 5) |
|---|---|---|---|---|
| METHYL 2- CHLOROPROPIONATE | 3 | F1 | III | |
Source: ADR 2025, Table A of Chapter 3.2 · ECE/TRANS/352 Vol. I (UNECE). Class 3 is “Flammable liquids” (ADR 2.1.1.1).
United States · 49 CFR 172.101 Hazardous Materials Table
| Proper shipping name (column 2) | Class or division | PG | Labels (column 6) |
|---|---|---|---|
| Methyl 2-chloropropionate | 3 | III | |
Source: 49 CFR 172.101 Hazardous Materials Table · eCFR, revision 2026-08-03. Class 3 is “Flammable and combustible liquid” (49 CFR 173.2).
08 · Questions
Methyl 2-chloropropanoate… — frequently asked questions
What is the CAS number of Methyl 2-chloropropanoate…?
The CAS number of Methyl 2-chloropropanoate… is 73246-45-4. Its EC number is 412-470-8.
What is the chemical formula of Methyl 2-chloropropanoate…?
The molecular formula of Methyl 2-chloropropanoate… is C4H7ClO2 and its molecular weight is 122.55 g/mol.
What does a Methyl 2-chloropropanoate… label have to show?
Under CLP Annex VI the label for Methyl 2-chloropropanoate… carries the pictograms Flame and Health hazard and the signal word is Warning.
Is Methyl 2-chloropropanoate… flammable?
Yes. CLP Annex VI assigns Methyl 2-chloropropanoate… H226 — flammable liquid and vapour.
Is Methyl 2-chloropropanoate… a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for Methyl 2-chloropropanoate…. 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.
How should Methyl 2-chloropropanoate… be stored?
CLP Annex VI assigns Methyl 2-chloropropanoate… the storage statement P403.
Nearby
Substances next to Methyl 2-chloropropanoate…
Keep going: substances starting with M, or search the whole database by name, CAS number, pictogram or signal word.