7-Hydroxycoumarin
- Formula: C9H6O3
- Molecular weight: 162.1421
- IUPAC Standard InChI: InChI=1S/C9H6O3/c10-7-3-1-6-2-4-9(11)12-8(6)5-7/h1-5,10H
- IUPAC Standard InChIKey: ORHBXUUXSCNDEV-UHFFFAOYSA-N
- CAS Registry Number: 93-35-6
- 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: 2H-1-Benzopyran-2-one, 7-hydroxy-; Coumarin, 7-hydroxy-; Hydrangin; Hydrangine; Skimmetin; Skimmetine; Umbelliferon; Umbelliferone; 7-Oxycoumarin; 7 HC; 7-Hydroxy-2-chromenone; NSC 19790; 7-Hydroxy-2H-chromen-2-one; 1391-97-5
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Gas phase ion energetics data
Go To: Top, Gas Chromatography, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: Henry M. Rosenstock, Keith Draxl, Bruce W. Steiner, and John T. Herron
Appearance energy determinations
| Ion | AE (eV) | Other Products | Method | Reference | Comment |
|---|---|---|---|---|---|
| C8H6O2+ | 10.6 | CO | EI | Barnes and Occolowitz, 1964 |
Gas Chromatography
Go To: Top, Gas phase ion energetics data, References, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director
Kovats' RI, non-polar column, isothermal
| Column type | Active phase | Temperature (C) | I | Reference | Comment |
|---|---|---|---|---|---|
| Capillary | LM-1 | 170. | 1789. | Soares, Monache, et al., 1999 | 25. m/0.25 mm/0.25 μm, H2 |
| Capillary | LM-1 | 190. | 1797. | Soares, Monache, et al., 1999 | 25. m/0.25 mm/0.25 μm, H2 |
| Capillary | LM-1 | 210. | 1795. | Soares, Monache, et al., 1999 | 25. m/0.25 mm/0.25 μm, H2 |
Van Den Dool and Kratz RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5MS | 1852.5 | Andriamaharavo, 2014 | 30. m/0.25 mm/0.25 μm, He; Program: 60C (1 min) => 5 C/min => 210C => 10 C/min => 280C (15 min) |
Normal alkane RI, non-polar column, temperature ramp
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Capillary | HP-5 MS | 1828. | Sandoval-Montemayor, Garcia, et al., 2012 | 25. m/0.20 mm/0.30 μm, Helium, 40. C @ 2. min, 10. K/min, 260. C @ 20. min |
| Capillary | DB-5 | 1836. | Orlita, Sidwa-Gorycka, et al., 2008 | Argon, 0.9 K/min; Tstart: 80. C; Tend: 200. C |
Normal alkane RI, non-polar column, custom temperature program
| Column type | Active phase | I | Reference | Comment |
|---|---|---|---|---|
| Other | Methyl Silicone | 1828. | Ardrey and Moffat, 1981 | Program: not specified |
References
Go To: Top, Gas phase ion energetics data, Gas Chromatography, Notes
Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.
Barnes and Occolowitz, 1964
Barnes, C.S.; Occolowitz, J.L.,
The mass spectra of some naturally occurring oxygen heterocycles and related compounds,
Australian J. Chem., 1964, 17, 975. [all data]
Soares, Monache, et al., 1999
Soares, M.F.; Monache, F.D.; Heinzen, V.E.F.; Yunes, R.A.,
Prediction of gas chromatographic retention indices of coumarins,
J. Braz. Chem. Soc., 1999, 10, 3, 189-196, https://doi.org/10.1590/S0103-50531999000300006
. [all data]
Andriamaharavo, 2014
Andriamaharavo, N.R.,
Retention Data. NIST Mass Spectrometry Data Center., NIST Mass Spectrometry Data Center, 2014. [all data]
Sandoval-Montemayor, Garcia, et al., 2012
Sandoval-Montemayor, N.E.; Garcia, A.; Elizondo-Trevino, E.; Garza-Gonzales, E.; Alvarez, L.; Camacho-Corona, M. delR.,
Chemical composition of hexane extract of Citrus aurantifolia and anti-mycobacterium tuberculosis activity of some of its constituents,
Molecules, 2012, 17, 12, 11173-11184, https://doi.org/10.3390/molecules170911173
. [all data]
Orlita, Sidwa-Gorycka, et al., 2008
Orlita, A.; Sidwa-Gorycka, M.; Kumirska, J.; Malinski, E.; Siedlecka, E.M.; Gajdus, J.; Lojkowska, E.; Stepnowski, P.,
Identification of Ruta graveolens L. metabolites accumulated in the presence of abiotic elicitors,
Biotechnol. Prog., 2008, 24, 1, 128-133, https://doi.org/10.1021/bp070261d
. [all data]
Ardrey and Moffat, 1981
Ardrey, R.E.; Moffat, A.C.,
Gas-liquid chromatographic retention indices of 1318 substances of toxicological interest on SE-30 or OV-1 stationary phase,
J. Chromatogr., 1981, 220, 3, 195-252, https://doi.org/10.1016/S0021-9673(00)81925-1
. [all data]
Notes
Go To: Top, Gas phase ion energetics data, Gas Chromatography, References
- Symbols used in this document:
AE Appearance energy - Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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