9-Methylheptacosane

Formula: C₂₈H₅₈
Molecular weight: 394.7601
IUPAC Standard InChI: InChI=1S/C28H58/c1-4-6-8-10-12-13-14-15-16-17-18-19-20-21-23-25-27-28(3)26-24-22-11-9-7-5-2/h28H,4-27H2,1-3H3
IUPAC Standard InChIKey: RLCPPUWUVWSWRU-UHFFFAOYSA-N
Chemical structure:
This structure is also available as a 2d Mol file
Other names: Heptacosane, 9-methyl
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Gas Chromatography

Data compiled by: NIST Mass Spectrometry Data Center, William E. Wallace, director

Van Den Dool and Kratz RI, non-polar column, temperature ramp

Column type	Active phase	I	Reference	Comment
Capillary	Ultra-1	2732.	Nelson, Adams, et al., 2003	150. C @ 4. min, 4. K/min, 320. C @ 30. min; Column length: 12. m; Column diameter: 0.2 mm
Capillary	DB-5MS	2731.	Steinmetz, Schmolz, et al., 2003	30. m/0.32 mm/0.25 μm, He, 3. K/min; T_start: 150. C; T_end: 280. C

Normal alkane RI, non-polar column, temperature ramp

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	OV-1	2739.1	Krkosova, Kubinec, et al., 2007	100. m/0.32 mm/0.25 μm, Helium, 5. K/min, 310. C @ 5. min; T_start: 30. C
Capillary	BP-1	2734.	Lockey and Dularay, 1986	25. m/0.25 mm/0.25 μm, Helium, 1.5 K/min; T_start: 160. C; T_end: 300. C

Normal alkane RI, non-polar column, custom temperature program

View large format table.

Column type	Active phase	I	Reference	Comment
Capillary	DB-1	2735.	Carlson, Geden, et al., 1999	30. m/0.32 mm/0.25 μm, He; Program: 60C (2min) => 10C/min => 220C => 3C/min => 310C (12 - 42 min)
Capillary	Dexsil 300	2743.	Lockey, 1981	Column length: 15. m; Program: 50 0C 5 0C/min -> 200 0C 2 0C/min -> 340 0C

References

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Nelson, Adams, et al., 2003
Nelson, D.R.; Adams, T.S.; Fatland, C.L., Hydrocarbons in the surface wax of eggs and adults of the Colorado potato beetle, Leptinotarsa decemlineata, Comp. Biochem. Physiol. B: Comp. Biochem., 2003, 134, 3, 447-466, https://doi.org/10.1016/S1096-4959(02)00262-2 . [all data]

Steinmetz, Schmolz, et al., 2003
Steinmetz, I.; Schmolz, E.; Ruther, J., Cuticular lipids as trail pheromone in a social wasp, Proc. R. Soc. London B:, 2003, 270, 1513, 385-391, https://doi.org/10.1098/rspb.2002.2256 . [all data]

Krkosova, Kubinec, et al., 2007
Krkosova, Z.; Kubinec, R.; Addova, G.; Jurdakova, H.; Blasko, J.; Ostrovsky, I.; Sojak, L., Gas chromatographic - mass spectrometric characterization of monomethylalkanes from fuel diesel, Petroleum Coal, 2007, 49, 3, 51-62. [all data]

Lockey and Dularay, 1986
Lockey, K.H.; Dularay, B., Cuticular methylalkanes of adult cockroaches, Blatta orientalis and Periplaneta Americana, Comp. Biochem. Physiol., 1986, 85B, 3, 567-572. [all data]

Carlson, Geden, et al., 1999
Carlson, D.A.; Geden, C.J.; Bernier, U.R., Identification of pupal exiviae of Nasania vitripennis and Muscidifurax raptorellus parasitoids using cuticular hydrocarbons, Biol. Control, 1999, 15, 2, 97-106, https://doi.org/10.1006/bcon.1999.0708 . [all data]

Lockey, 1981
Lockey, K.H., Cuticular hydrocarbons of adult Cylindrinotus laevioctostriatus (Goeze) and Phylan gibbus (Fabricius) (Coleoptera: Tenebrionidae), Insect. Biochem., 1981, 11, 5, 549-561, https://doi.org/10.1016/0020-1790(81)90023-8 . [all data]

Notes

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Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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