2H-1-Benzopyran, 3,4-dihydro-

• Formula: C₉H₁₀O
• Molecular weight: 134.1751
• IUPAC Standard InChI: InChI=1S/C9H10O/c1-2-6-9-8(4-1)5-3-7-10-9/h1-2,4,6H,3,5,7H2 Copy

  
• IUPAC Standard InChIKey: VZWXIQHBIQLMPN-UHFFFAOYSA-N Copy
• CAS Registry Number: 493-08-3
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: Chroman; 3,4-Dihydro-2H-1-benzopyran; Benzopyran, 3,4-dihydro; Dihydrobenzopyran
• Permanent link for this species. Use this link for bookmarking this species for future reference.
• Information on this page:
  • Phase change data
  • References
  • Notes
• Other data available:
  • Gas phase thermochemistry data
  • Condensed phase thermochemistry data
  • Gas phase ion energetics data
  • Mass spectrum (electron ionization)
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Phase change data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled as indicated in comments:
BS - Robert L. Brown and Stephen E. Stein
DH - Eugene S. Domalski and Elizabeth D. Hearing
ALS - Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein
DRB - Donald R. Burgess, Jr.
AC - William E. Acree, Jr., James S. Chickos

Reduced pressure boiling point

Enthalpy of sublimation

Enthalpy of fusion

Entropy of fusion

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Chirico, Nguyen, et al., 1986
Chirico, R.D.; Nguyen, A.; Steele, W.V.; Strube, M.M.; Hossenlopp, I.A.; Gammon, B.E., Thermochemical and thermophysical properties of organic compounds derived from fossil substances. Chemical thermodynamic properties of organic oxygen compounds found in fossil materials, NIPER Report, 1986, 135, 42p. [all data]

Chirico, Archer, et al., 1990
Chirico, R.D.; Archer, D.G.; Hossenlopp, I.A.; Nguyen, A.; Steele, W.V.; Gammon, B.E., The thermodynamic properties of chroman and isochroman, J. Chem. Thermodyn., 1990, 22, 665-682. [all data]

Weast and Grasselli, 1989
CRC Handbook of Data on Organic Compounds, 2nd Editon, Weast,R.C and Grasselli, J.G., ed(s)., CRC Press, Inc., Boca Raton, FL, 1989, 1. [all data]

Domalski and Hearing, 1996
Domalski, Eugene S.; Hearing, Elizabeth D., Heat Capacities and Entropies of Organic Compounds in the Condensed Phase. Volume III, J. Phys. Chem. Ref. Data, 1996, 25, 1, 1, https://doi.org/10.1063/1.555985 . [all data]

Notes

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• Symbols used in this document:
  

  Tboil	Boiling point
  Tfus	Fusion (melting) point
  ΔfusH	Enthalpy of fusion
  ΔfusS	Entropy of fusion
  ΔsubH	Enthalpy of sublimation
  ΔsubH°	Enthalpy of sublimation at standard conditions
  ΔvapH°	Enthalpy of vaporization at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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