Substance profile
2-Chlorobenzaldehyde
2-Chlorobenzaldehyde is a colorless to yellowish liquid with a penetrating odor.
01 · Identification
What 2-Chlorobenzaldehyde is
2-Chlorobenzaldehyde is a colorless to yellowish liquid with a penetrating odor. Its molecular formula is C7H5ClO and its molecular weight is 140.56 g/mol. It boils at 212 °C, melts at 11.9 °C, is slightly soluble in water.
Under the GHS it carries the signal word Danger.
02 · Identifiers
2-Chlorobenzaldehyde identifiers and molecular data
2-Chlorobenzaldehyde CAS number and EC number
2-Chlorobenzaldehyde molecular formula and molecular weight
Other names for 2-Chlorobenzaldehyde
- o-chlorobenzaldehyde
03 · GHS classification
2-Chlorobenzaldehyde hazard classification
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
2-Chlorobenzaldehyde pictograms and signal word
2-Chlorobenzaldehyde hazard class and category
| Hazard class | Category | From code | Pictogram |
|---|---|---|---|
| Skin corrosion/irritation GHS chapter 3.2 | Category 1A or 1B or 1C | H314 | GHS05 |
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.
2-Chlorobenzaldehyde hazard statements (H-codes)
| Code | Hazard statement |
|---|---|
| H314 | Causes severe skin burns and eye damage. |
This page lists only the codes assigned to 2-Chlorobenzaldehyde. 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 2-Chlorobenzaldehyde
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 2-Chlorobenzaldehyde 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
2-Chlorobenzaldehyde precautionary statements
CLP Annex VI assigns 5 precautionary statements to 2-Chlorobenzaldehyde. 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
2-Chlorobenzaldehyde 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 | 2-хлоробензалдехид o -хлоробензалдехид |
| Spanish español | 2-Clorobenzaldehído o -clorobenzaldehído |
| Czech čeština | 2-chlorbenzaldehyd o -chlorbenzaldehyd |
| Danish dansk | 2-chlorbenzaldehyd o -chlorbenzaldehyd |
| German Deutsch | 2-Chlorbenzaldehyd o -Chlorbenzaldehyd |
| Estonian eesti | 2-klorobensaldehüüd o -klorobensaldehüüd |
| Greek ελληνικά | 2-χλωροβενζαλδεΰδη o -χλωροβενζαλδεΰδη |
| English English | 2-chlorobenzaldehyde o- chlorobenzaldehyde |
| French français | 2-chlorobenzaldéhyde o -chlorobenzaldéhyde |
| Croatian hrvatski | 2-klorbenzaldehid o -klorbenzaldehid |
| Italian italiano | 2-clorobenzaldeide o-clorobenzaldeide |
| Latvian latviešu | 2-hlorbenzaldehīds o -hlorbenzaldehīds |
| Lithuanian lietuvių | 2-chlorbenzaldehidas o - chlorbenzaldehidas |
| Hungarian magyar | 2-klórbenzaldehid o -klórbenzaldehid |
| Maltese Malti | 2-klorobenżaldeid o -klorobenżaldeid |
| Dutch Nederlands | 2-chloorbenzaldehyde o -chloorbenzaldehyde |
| Polish polski | 2-chlorobenzaldehyd o -chlorobenzaldehydaldehyd o -chlorobenzoesowy |
| Portuguese português | 2-clorobenzaldeído o -clorobenzaldeído |
| Romanian română | 2-clorobenzaldehidă aldehidă o -clorobenzoică |
| Slovak slovenčina | 2-chlórbenzaldehyd orto -chlórbenzaldehyd |
| Slovenian slovenščina | 2-klorobenzaldehid o- klorobenzaldehid |
| Finnish suomi | 2-klooribentsaldehydi o -klooribentsaldehydi |
| Swedish svenska | 2-klorbensaldehyd o -klorbensaldehyd |
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
2-Chlorobenzaldehyde GHS label elements
Everything CLP Annex VI fixes for 2-Chlorobenzaldehyde, laid out the way it appears on a label. The greyed lines are the parts only the supplier can fill in.
Danger
2-Chlorobenzaldehyde
- Causes severe skin burns and eye damage.
- Do not breathe dust/fume/gas/mist/vapours/spray.
- Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/…
- IF SWALLOWED:
- Immediately call a POISON CENTER/doctor/…
- Do NOT induce vomiting.
Supplier name, address and telephone number· Product identifier·Nominal quantity
Need this as an actual label? Open 2-Chlorobenzaldehyde in the GHS label constructor →
07 · Health hazards
2-Chlorobenzaldehyde health hazards and exposure limits
2-Chlorobenzaldehyde hazard summary
Causes somnolence, tremor, and diarrhea in lethal-dose feeding studies of rats; [RTECS] A severe skin, eye, and respiratory tract irritant; Can be absorbed through skin; [ICSC] A skin, eye, and upper respiratory tract irritant; [CAMEO] A skin, eye, nose, throat, and upper respiratory tract irritant; Inhalation of high concentrations can cause CNS depression; [CHEMINFO] Causes burns; [eChemPortal: ESIS] A corrosive substance that can cause injury to the skin, eyes, and respiratory tract; Inhalation may cause chemical pneumonitis; [MSDSonline]
Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
08 · Physical and chemical properties
2-Chlorobenzaldehyde 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.
2-Chlorobenzaldehyde boiling point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 212 °C (413.6 °F) | HSDB | |
| 211.89 °C (413.4 °F) | at 760 mmHg | CAMEO | |
| 211.9 °C (413.4 °F) | ICSC |
2-Chlorobenzaldehyde melting point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 11.9 °C (53.4 °F) | HSDB | |
| 12.39 °C (54.3 °F) | CAMEO | ||
| 12.4 °C (54.3 °F) | ICSC |
2-Chlorobenzaldehyde density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Density | 1.25 g/cm³ | ICSC | |
| 1.2483 g/cm³ | at 20 °C | HSDB | |
| 1.248 g/cm³ | at 20 °C | CAMEO |
2-Chlorobenzaldehyde solubility
| Property | Value | Conditions | Source |
|---|---|---|---|
| Solubility | Slightly soluble in water | HSDB | |
| Soluble in ethanol, diethyl ether, acetone, benzene, carbon tetrachloride | HSDB | ||
| 1 to 5 mg/mL at 75 °F (NTP, 1992) | at 23.89 °C | CAMEO |
2-Chlorobenzaldehyde vapor pressure
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor pressure | 0.23 mmHg | at 20 °C | HSDB |
| 0.3 mmHg | at 25 °C | ICSC | |
| 2.2 mmHg | at 50 °C | CAMEO |
2-Chlorobenzaldehyde flash point
| Property | Value | Conditions | Source |
|---|---|---|---|
| Flash point | 87 °C (188.6 °F) | HSDB | |
| 87.78 °C (190 °F) | CAMEO |
2-Chlorobenzaldehyde autoignition temperature
| Property | Value | Conditions | Source |
|---|---|---|---|
| Autoignition temperature | 395 °C (743 °F) | CAMEO | |
| 385 °C (725 °F) | ICSC |
2-Chlorobenzaldehyde vapor density
| Property | Value | Conditions | Source |
|---|---|---|---|
| Vapor density | 4.86 (air = 1) | calculated | ICSC |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
09 · Handling and storage
2-Chlorobenzaldehyde storage and handling
2-Chlorobenzaldehyde safe storage
Separated from food and feedstuffs. Dry. Well closed. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
Source: ILO-WHO International Chemical Safety Cards (ICSCs)
2-Chlorobenzaldehyde storage conditions
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Source: Hazardous Substances Data Bank (HSDB)
2-Chlorobenzaldehyde incompatible materials
Incompatible materials: Strong bases, strong oxidizing agents, strong reducing agents.
Source: Hazardous Substances Data Bank (HSDB)
2-Chlorobenzaldehyde reactivity
2-CHLOROBENZALDEHYDE reacts with iron and strong oxidizers, strong bases and strong reducing agents. (NTP, 1992)
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check 2-Chlorobenzaldehyde in the storage compatibility matrix →
10 · Questions
2-Chlorobenzaldehyde — frequently asked questions
What is the CAS number of 2-Chlorobenzaldehyde?
The CAS number of 2-Chlorobenzaldehyde is 89-98-5. Its EC number is 201-956-3.
What is the chemical formula of 2-Chlorobenzaldehyde?
The molecular formula of 2-Chlorobenzaldehyde is C7H5ClO and its molecular weight is 140.56 g/mol.
What does a 2-Chlorobenzaldehyde label have to show?
Under CLP Annex VI the label for 2-Chlorobenzaldehyde carries the pictogram Corrosion and the signal word is Danger.
Is 2-Chlorobenzaldehyde flammable?
CLP Annex VI assigns 2-Chlorobenzaldehyde 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 87 °C (188.6 °F) (HSDB).
Is 2-Chlorobenzaldehyde a carcinogen?
CLP Annex VI records no harmonised carcinogenicity classification for 2-Chlorobenzaldehyde. 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 2-Chlorobenzaldehyde?
The boiling point reported for 2-Chlorobenzaldehyde is 212 °C (413.6 °F) (HSDB).
What is the melting point of 2-Chlorobenzaldehyde?
The melting point reported for 2-Chlorobenzaldehyde is 11.9 °C (53.4 °F) (HSDB).
How should 2-Chlorobenzaldehyde be stored?
Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage. (Hazardous Substances Data Bank (HSDB))
Nearby
Substances next to 2-Chlorobenzaldehyde
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