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CAS Number: 95-49-8
Sum Formula: C7H7Cl
Molar Mass: 126.6 g/mol
German Synonyms: 1-Chlor-2-methylbenzen | o-Chlortoluol | 2-Chlortoluol | 1-Chlor-2-methylbenzol
English Synonyms: o-Methylchlorobenzene | o-Chlorotoluene | 2-Chlorotoluene | 1-Chloro-2-methylbenzene
EC Index Number: 602-040-00-X
EC Number: 202-424-3
Temperature Class: T1
Explosion Group: IIA (estimated)
Structural Formula 1-Chloro-2-methylbenzene

Disclaimer: The CLP/GHS classification is not regularly updated in Chemsafe. For up-to-date information, please use the ECHA database. ( https://echa.europa.eu/en/information-on-chemicals )

GHS Hazard and Category:
  • Flam. Liq. 3: flammable liquids, category 3
  • Acute Tox. 4: acute toxicity by inhalation, category 4
  • Aquatic Chronic 2: long-term hazards hazards to the aquatic environment, category 2
GHS Pictogram:
pictogram harmful
pictogram environmental hazard





GHS Signal Word: Warning
GHS Hazard Statement:
  • H226: Flammable liquid and vapour.
  • H332: Harmful if inhaled.
  • H411: Toxic to aquatic life with long lasting effects.

Antoine parameters
1 DECHEMA 7.7121 Torr UTI: 1100-2652-33396/0-39
UTI: 1100-2652-33396/0-39;
Line no Upper temperature limit of Antoine equation Lower temperature limit of Antoine equation Antoine constant C Antoine constant B Antoine constant A
  • recommended value
  • saturated
  • property of pure substance
  • recommended value
  • saturated
  • property of pure substance
  • recommended value
  • by regression
  • saturated
  • property of pure substance
  • recommended value
  • by regression
  • saturated
  • property of pure substance
  • defined value
  • by regression
  • saturated
  • property of pure substance
1 < 159 °C > 5 °C 258.216 °C 2018.31 °C 7.7121 Torr
Bibliographic data
Author DECHEMA
Title Antoinekonstanten
Database PTB
Publisher Detherm
Boiling point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 159 °C UTI: 1000-2652-33389/0-39
UTI: 1000-2652-33389/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 159 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Density
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 20 °C 1.08 g/cm3 UTI: 1000-2652-33390/0-39
UTI: 1000-2652-33390/0-39;
Line no Density Temperature Pressure
  • defined value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • recommended value
  • at atmospheric pressure and room temperature
  • property of pure substance
  • recommended value
  • at atmospheric pressure and room temperature
1 1.08 g/cm3 20 °C 1013.25 hPa
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Melting point
1 1963 Nabert, K.; Schön, G. -35 °C UTI: 1000-2652-33388/0-39
UTI: 1000-2652-33388/0-39;
Line no Melting temperature
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 -35 °C
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Relative gas density
1 1963 Nabert, K.; Schön, G. 4.37 UTI: 1000-2652-33392/0-39
UTI: 1000-2652-33392/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 4.37
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Solubility in water
1 2009 Physikalisch-Technische Bundesanstalt (PTB) 20 °C 0.05 g/l UTI: 228-2652-33386/0-39
UTI: 228-2652-33386/0-39;
Line no Solubility in water Temperature
  • defined value
  • property of pure substance
  • property of pure substance
1 0.05 g/l 20 °C
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 2009
Title Wasserlöslichkeit
Database PTB
Publisher Datenbank PTB-Lab. 3.43
Language GERM
  • The oxidizing agent is air with an oxygen content of 20.95 % by volume. In the data base it is usually not specified as mixture component. Exceptions are highlighted.
  • Pressure values are absolute, not gauge pressures.
  • Impurities can strongly influence characteristic safety data, particulary if the properties of the impurity considerably deviate from the respective properties of the pure substance.
  • Safety characteristics are only displayed if evaluated data are available.
  • Values can be cited by using the UTI number of the table (Uniform Table Identifier).
  • Color Codes:         recommended value             no recommendation               do not use value

Autoignition Temperature
1 1963 Nabert, K.; Schön, G. > 550 °C UTI: 1000-2652-33393/0-39
UTI: 1000-2652-33393/0-39;
Line no Autoignition Temperature
  • recommended value
  • international standard method
  • property of pure substance
1 > 550 °C [A]
[A] IEC 79-4: Method of Test for Ignition Temperature, Electrical Apparatus for Explosive G; Replaced by IEC-60079-20-1 in 1975
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Flash point
1 1963 Nabert, K.; Schön, G. 43 °C UTI: 1000-2652-33391/0-39
UTI: 1000-2652-33391/0-39;
Line no Flash point
  • recommended value
  • closed cup
  • property of pure substance
1 43 °C
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Explosion limits
Lower explosion limit
1 1963 Nabert, K.; Schön, G. 1.3 Vol% ± 10 % UTI: 1000-2652-33395/0-39
UTI: 1000-2652-33395/0-39;
Line no Lower explosion limit
  • recommended value
  • property of pure substance
1 1.3 Vol% ± 10 %
2 68 g/m3 ± 10 % ⚠
⚠ The reference for the specification in g/m3 is the molar volume at 20 °C
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Upper explosion limit
1 1963 Nabert, K.; Schön, G. 8.3 Vol% ± 5 % UTI: 1000-2652-33394/0-39
UTI: 1000-2652-33394/0-39;
Line no Upper explosion limit
  • recommended value
  • property of pure substance
1 8.3 Vol% ± 5 %
2 435 g/m3 ± 5 % ⚠
⚠ The reference for the specification in g/m3 is the molar volume at 20 °C
Bibliographic data
Author Nabert, K.; Schön, G.
Year 1963
Title Sicherheitstechnische Kennzahlen brennbarer Gase und Dämpfe (mit 6. Nachtrag)
Publisher Deutscher Eichverlag
Publisher City Braunschweig
Abstract English Safety values of about 1000 flammable gases and vapors: Explosion limits, ignition temperatures, flash points, explosion pressures.
Language GERM
Stoichiometric fraction of combustible substance in mixture with air
1 2005 Physikalisch-Technische Bundesanstalt (PTB) 2.4 Mol% UTI: 220-2652-33385/0-39
UTI: 220-2652-33385/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 2.4 Mol%
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 2005
Title Berechnete molare stöchiometrische Brenngasanteile in Luft (c_stoech)
Database PTB
Publisher Datenbank PTB-Lab. 3.43
Language GERM

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