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CAS Number: 625-55-8
Sum Formula: C4H8O2
Molar Mass: 88.1 g/mol
German Synonyms: Isopropylformiat | i-Propylformiat | Ameisensäure-i-propylester | Ameisensäure-1-methylethylester
English Synonyms: i-Propyl formate | Isopropyl formate | Formic acid 1-methylethyl ester
EC Index Number: 607-016-00-2
EC Number: 210-901-2
Temperature Class: T1
Explosion Group: IIA (estimated)
Structural Formula Formic acid 1-methylethyl ester

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
  • Eye Irrit. 2: eye irritation, category 2
  • STOT SE 3: Specific target organ toxicity following single exposure, category 3, respiratory tract irritation or narcotic effects
GHS Pictogram:
pictogram flammable
pictogram harmful





GHS Signal Word: Danger
GHS Hazard Statement:
  • H225: Highly flammable liquid and vapour.
  • H319: Causes serious eye irritation.
  • H335: May cause respiratory irritation.
  • H336: May cause drowsiness or dizziness.

Boiling point
1 1963 Nabert, K.; Schön, G. 1013.25 hPa 68 °C UTI: 1000-1158-18661/0-39
UTI: 1000-1158-18661/0-39;
Line no Boiling temperature Pressure
  • defined value
  • at atmospheric pressure
  • property of pure substance
1 68 °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 0.87 g/cm3 UTI: 1000-1158-18662/0-39
UTI: 1000-1158-18662/0-39;
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 0.87 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
Relative gas density
1 1963 Nabert, K.; Schön, G. 3.04 UTI: 1000-1158-18663/0-39
UTI: 1000-1158-18663/0-39;
Line no Relative gas density
  • defined value
  • property of pure substance
1 3.04
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 21.1 g/l UTI: 228-1158-18657/0-39
UTI: 228-1158-18657/0-39;
Line no Solubility in water Temperature
  • defined value
  • property of pure substance
  • property of pure substance
1 21.1 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. 460 °C UTI: 1000-1158-18664/0-39
UTI: 1000-1158-18664/0-39;
Line no Autoignition Temperature
  • recommended value
  • according to german standard
  • property of pure substance
1 460 °C [A]
[A] DIN 51794: Testing of mineral oil hydrocarbons - Determination of ignition temperature; measurements are technically identical to those of ISO/IEC 80079-20-1 but results are treated differently.
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 1975 Yagyu, S. 440 °C UTI: 179-1158-18653/0-39
UTI: 179-1158-18653/0-39;
Line no Autoignition Temperature
  • international standard method
  • property of pure substance
1 440 °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
Title Data for Ignition Temperature(1st and 2nd)
Author Yagyu, S.
Year 1975
Publisher RIIS
Language JAPN
Flash point
1 1991 Physikalisch-Technische Bundesanstalt (PTB) -14 °C UTI: 4801-1158-18666/0-39
UTI: 4801-1158-18666/0-39;
Line no Flash point
  • recommended value
  • estimated
  • closed cup
  • property of pure substance
1 -14 °C
Bibliographic data
Author Physikalisch-Technische Bundesanstalt (PTB)
Year 1991
Title Empfohlene Sicherheitstechnische Kenngrößen
Database PTB
Publisher Datenbank PTB-AG 3.41/3.71
Language GERM
2 1963 Nabert, K.; Schön, G. < -6 °C UTI: 1000-1158-18659/0-39
UTI: 1000-1158-18659/0-39;
Line no Flash point
  • experimental
  • closed cup
  • property of pure substance
1 < -6 °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
Maximum experimental safe gap
1 2020 DIN EN ISO/IEC 1.1 mm UTI: 241-1158-18658/0-39
UTI: 241-1158-18658/0-39;
Line no Maximum experimental safe gap
  • recommended value
  • property of pure substance
1 1.1 mm
Bibliographic data
Author DIN EN ISO/IEC
Year 2020
Title DIN EN ISO/IEC 80079-20-1 :2020-09
Subtitle Explosive atmospheres - Part 20-1: Material characteristics for gas and vapour classification - Test methods and data
Publisher Beuth
Publisher City Berlin
Stoichiometric fraction of combustible substance in mixture with air
1 2005 Physikalisch-Technische Bundesanstalt (PTB) 4.0 Mol% UTI: 220-1158-18656/0-39
UTI: 220-1158-18656/0-39;
Line no Stoichiometric fraction of combustible substance in mixture with air
  • recommended value
  • property of pure substance
1 4.0 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