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This is an old revision of this page, as edited by Beetstra (talk | contribs) at 17:15, 16 February 2012 (Saving copy of the {{chembox}} taken from revid 475948787 of page 2-Butene for the Chem/Drugbox validation project (updated: '').). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

Revision as of 17:15, 16 February 2012 by Beetstra (talk | contribs) (Saving copy of the {{chembox}} taken from revid 475948787 of page 2-Butene for the Chem/Drugbox validation project (updated: '').)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)
This page contains a copy of the infobox ({{chembox}}) taken from revid 475948787 of page 2-Butene with values updated to verified values.
2-Butene
cis
trans
cis
trans
Names
IUPAC name But-2-ene
Other names β-Butylene
Identifiers
CAS Number
3D model (JSmol)
ChEBI
ChemSpider
RTECS number
  • EM2932000
UNII
InChI
  • InChI=1S/C4H8/c1-3-4-2/h3-4H,1-2H3Key: IAQRGUVFOMOMEM-UHFFFAOYSA-N
  • InChI=1/C4H8/c1-3-4-2/h3-4H,1-2H3Key: IAQRGUVFOMOMEM-UHFFFAOYAW
SMILES
  • C(=CC)C
Properties
Chemical formula C4H8
Molar mass 56.106 g/mol
Density 0.641 g/mL (cis, at 3.7 °C)
0.626 g/mL (trans, at 0.9 °C)
Melting point -138.9 °C (cis)
-105.5 °C (trans)
Boiling point 3.7 ºC (cis)
0.9 °C (trans)
Hazards
GHS labelling:
Pictograms Flam. Gas 1Press. Gas
Signal word Danger
Hazard statements H220
Precautionary statements P210, P377, P381, P403
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 4: Will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily. Flash point below 23 °C (73 °F). E.g. propaneInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1 4 0
Flash point −72 °C (−98 °F)
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C , 100 kPa). checkY verify (what is  ?) Infobox references
Tracking categories (test):
Chemical compound
  1. ^ Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health
  2. ^ Record in the GESTIS Substance Database of the Institute for Occupational Safety and Health
  3. cis-2-Butene, International Chemical Safety Card 0397, Geneva: International Programme on Chemical Safety, March 1996. trans-2-Butene, International Chemical Safety Card 0398, Geneva: International Programme on Chemical Safety, March 1996.
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