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Piperylene information


Piperylene[1]
Names
Preferred IUPAC name
(3E)-Penta-1,3-diene
Identifiers
CAS Number
  • 504-60-9 checkY
  • trans: 2004-70-8
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:74165 ☒N
ChemSpider
  • 56020 checkY
ECHA InfoCard 100.007.269 Edit this at Wikidata
EC Number
  • 207-995-2
PubChem CID
  • 62204
RTECS number
  • RZ2464000
UNII
  • FW963NF88B checkY
UN number 1993 3295 1010
CompTox Dashboard (EPA)
  • DTXSID3027160 Edit this at Wikidata
InChI
  • InChI=1S/C5H8/c1-3-5-4-2/h3-5H,1H2,2H3/b5-4+ ☒N
    Key: PMJHHCWVYXUKFD-SNAWJCMRSA-N ☒N
  • InChI=1/C5H8/c1-3-5-4-2/h3-5H,1H2,2H3/b5-4+
    Key: PMJHHCWVYXUKFD-SNAWJCMRBX
SMILES
  • C/C=C/C=C
Properties
Chemical formula
C5H8
Molar mass 68.117 g/mol
Appearance Colorless liquid
Density 0.683 g/cm3
Melting point −87 °C (−125 °F; 186 K) E-isomer
Boiling point 42 °C (108 °F; 315 K) E-isomer
Hazards
GHS labelling:
Pictograms
GHS02: FlammableGHS07: Exclamation markGHS08: Health hazard
Signal word
Danger
Hazard statements
H225, H304, H315, H319, H335
Precautionary statements
P210, P233, P240, P241, P242, P243, P261, P264, P271, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P321, P331, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
Flash point < −30 °C (−22 °F; 243 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Piperylene or 1,3-pentadiene is an organic compound with the formula CH3−CH=CH−CH=CH2. It is a volatile, flammable hydrocarbon. It is one of the five positional isomers of pentadiene.

  1. ^ Safety (MSDS) data for piperylene. Retrieved 2007-11-14.

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two isomers: cis-1,3-pentadiene. trans-1,3-pentadiene, also known as piperylene. 1,4-pentadiene, H2C=CH−CH2−CH=CH2. 2,3-pentadiene, H3C−CH=C=CH−CH3, with...

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have to be corrected for. Organic actinometers like butyrophenone or piperylene are analysed by gas chromatography. Other actinometers are more specific...

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