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CAS Number: 96-37-7
Sum Formula: C6H12
Molar Mass: 84.2 g/mol
German Synonyms: Methylcyclopentan
English Synonyms: Methylcyclopentane
EC Number: 202-503-2
Explosion Group: IIA (estimated)
Structural Formula Methylcyclopentane

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. 2: flammable liquids, category 2
GHS Pictogram:
pictogram flammable
pictogram harmful
pictogram health hazard





GHS Signal Word: Danger
GHS Hazard Statement:
  • H225: Highly flammable liquid and vapour.
  • H304: May be fatal if swallowed and enters airways.
  • H315: Causes skin irritation.
  • H336: May cause drowsiness or dizziness.

Boiling point
1 1950 Matteson, R. 1013.25 hPa 71.8 °C UTI: 21-1014-14901/0-39
UTI: 21-1014-14901/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • saturated
1 71.8 °C 1013.25 hPa
Bibliographic data
Title Physical Constants of Hydrocarbons Boiling Below 350 F
Author Matteson, R.
Year 1950
Publisher American Society For Testing Materials
Publisher City Philadelphia
Language ENGL
2 1963 Nabert, K.; Schön, G. 1013.25 hPa 72 °C UTI: 1000-1014-14925/0-39
UTI: 1000-1014-14925/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 72 °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 1950 Matteson, R. 1013.25 mbar 15.6 °C 0.754 g/cm3 UTI: 21-1014-14902/0-39
UTI: 21-1014-14902/0-39;
Line no Pressure Temperature Density
  • property of pure substance
  • defined value
  • property of pure substance
1 1013.25 mbar 15.6 °C 0.754 g/cm3
Bibliographic data
Title Physical Constants of Hydrocarbons Boiling Below 350 F
Author Matteson, R.
Year 1950
Publisher American Society For Testing Materials
Publisher City Philadelphia
Language ENGL
2 1963 Nabert, K.; Schön, G. 1013.25 hPa 20 °C 0.75 g/cm3 UTI: 1000-1014-14926/0-39
UTI: 1000-1014-14926/0-39;
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 0.75 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 1950 Matteson, R. -142.5 °C UTI: 21-1014-14900/0-39
UTI: 21-1014-14900/0-39;
Line no Melting temperature
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 -142.5 °C
Bibliographic data
Title Physical Constants of Hydrocarbons Boiling Below 350 F
Author Matteson, R.
Year 1950
Publisher American Society For Testing Materials
Publisher City Philadelphia
Language ENGL
2 1963 Nabert, K.; Schön, G. 1013.25 hPa -142 °C UTI: 1000-1014-14929/0-39
UTI: 1000-1014-14929/0-39;
Line no Melting temperature Pressure
  • defined value
  • at atmospheric pressure
  • saturated
  • property of pure substance
  • recommended value
  • at atmospheric pressure
  • saturated
1 -142 °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
Relative gas density
1 1950 Matteson, R. 2.9053 UTI: 21-1014-14903/0-39
UTI: 21-1014-14903/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 2.9053
Bibliographic data
Title Physical Constants of Hydrocarbons Boiling Below 350 F
Author Matteson, R.
Year 1950
Publisher American Society For Testing Materials
Publisher City Philadelphia
Language ENGL
2 1963 Nabert, K.; Schön, G. 2.91 UTI: 1000-1014-14927/0-39
UTI: 1000-1014-14927/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 2.91
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) 25 °C 0.043 g/l UTI: 228-1014-14922/0-39
UTI: 228-1014-14922/0-39;
Line no Solubility in water Temperature
  • defined value
  • property of pure substance
  • property of pure substance
1 0.043 g/l 25 °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. 315 °C UTI: 1000-1014-14928/0-39
UTI: 1000-1014-14928/0-39;
Line no Autoignition Temperature
  • recommended value
  • experimental
  • methode not internationally standardized
  • property of pure substance
1 315 °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
2 1941 Sortman, C.W.; Beatty, H.A.; Heron, S.D. 469 °C UTI: 33-1014-14907/0-39
UTI: 33-1014-14907/0-39;
Line no Autoignition Temperature
  • methode not internationally standardized
  • property of pure substance
1 469 °C
Bibliographic data
Title Spontaneous Ignition of Hydrocarbons
Author Sortman, C.W.; Beatty, H.A.; Heron, S.D.
Year 1941
Journal Title Ind. Eng. Chem.
Volume 33
Issue 3
Pages 357-360
Publisher Ind. Eng. Chem.
Language ENGL
3 1948 Scott, G.S; Jones, G.W.; Scott, F.E. 329 °C UTI: 26-1014-14906/0-39
UTI: 26-1014-14906/0-39;
Line no Autoignition Temperature
  • methode not internationally standardized
  • property of pure substance
1 329 °C [1]
[1] in oxygen
Bibliographic data
Title Determination of Ignition Temperatures of Combustible Liquids and Gases
Author Scott, G.S; Jones, G.W.; Scott, F.E.
Year 1948
Journal Title Anal. Chem.
Volume 20
Issue 3
Pages 238-241
Publisher Anal. Chem.
Language ENGL
Flash point
1 1963 Nabert, K.; Schön, G. < -10 °C UTI: 1000-1014-14923/0-39
UTI: 1000-1014-14923/0-39;
Line no Flash point
  • recommended value
  • experimental
  • closed cup
  • property of pure substance
1 < -10 °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 1950 Matteson, R. 1.3 Vol% UTI: 21-1014-14904/0-39
UTI: 21-1014-14904/0-39;
Line no Lower explosion limit
  • property of pure substance
1 1.3 Vol%
Bibliographic data
Title Physical Constants of Hydrocarbons Boiling Below 350 F
Author Matteson, R.
Year 1950
Publisher American Society For Testing Materials
Publisher City Philadelphia
Language ENGL
Upper explosion limit
1 1950 Matteson, R. 8.4 Vol% UTI: 21-1014-14905/0-39
UTI: 21-1014-14905/0-39;
Line no Upper explosion limit
  • property of pure substance
1 8.4 Vol%
Bibliographic data
Title Physical Constants of Hydrocarbons Boiling Below 350 F
Author Matteson, R.
Year 1950
Publisher American Society For Testing Materials
Publisher City Philadelphia
Language ENGL
Maximum experimental safe gap
1 Maximum Experimental Safe Gap as a function of temperature and pressure 2023 Physikalisch-Technische Bundesanstalt (PTB), Arbeitsgruppe 3.71 100 kPa 23 °C 0.96 mm UTI: 4036-1014-60110/20240723-39
Maximum Experimental Safe Gap as a function of temperature and pressure
UTI: 4036-1014-60110/20240723-39;
Line no Pressure Temperature Maximum experimental safe gap
  • Parameter of the measurement
  • Parameter of the measurement
  • recommended value
  • experimental
  • international standard method
1 100 kPa 23 °C 0.96 mm [A]
[A] DIN EN ISO/IEC 80079-20-1:2020-09: Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB), Arbeitsgruppe 3.71
Year 2023
Title Sicherheitstechnische Kenngrößen: Messwerte des Labors
Database PTB
Publisher PTB-Lab. 3.71
Language GERM
Stoichiometric fraction of combustible substance in mixture with air
1 2005 Physikalisch-Technische Bundesanstalt (PTB) 2.3 Mol% UTI: 220-1014-14921/0-39
UTI: 220-1014-14921/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 2.3 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

No entry in database