GA8 methyl ester TMS ether

Formula: C₂₉H₅₀O₇Si₃
Molecular weight: 594.9596
IUPAC Standard InChI: InChI=1S/C29H50O7Si3/c1-18-15-27-17-28(18,36-39(10,11)12)14-13-20(27)29-16-19(34-37(4,5)6)23(35-38(7,8)9)26(2,25(31)33-29)22(29)21(27)24(30)32-3/h19-23H,1,13-17H2,2-12H3/t19-,20?,21?,22?,23-,26-,27-,28-,29+/m1/s1
IUPAC Standard InChIKey: URXALWQXBINWJP-MASLEOCOSA-N
Chemical structure:
This structure is also available as a 2d Mol file
Stereoisomers:
Other names: GA8, MeTMSi; GA8, Me-TMS; Gibberellin GA8, methyl ester trimethylsilyl ether; Gibberelline GA8, methyl ester TMS ether; GA8, methyl ester TMS
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Other data available:
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Kovats' RI, non-polar column, custom temperature program

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

Column type	Capillary	Capillary	Capillary	Capillary	Capillary
Active phase	DB-1	HP-5	HP-5	SE-30	Cross-Linked Methylsilicone
Column length (m)				25.	25.
Carrier gas	He				He
Substrate
Column diameter (mm)	0.25			0.25	0.2
Phase thickness (μm)	0.25			0.25	0.11
Program	60C(0.1min) => 20C/min => 200C => 5C/min => 300C	not specified	not specified	80C(1min) => (20C/min) => 200C => (4C/min) => 250C	60C(2min) => 30C/min => 210C(1min) => 10C/min => 240C
I	2816.	2783.	2783.	2818.	2820.
Reference	Emery, Pearce, et al., 2001	Morvan-Bertrand, Ernstsen, et al., 2001	Morvan-Bertrand, Ernstsen, et al., 2001	Odén, Wang, et al., 1995	Schneider, Jensen, et al., 1992
Comment	MSDC-RI	MSDC-RI	MSDC-RI	MSDC-RI	MSDC-RI

Column type	Capillary	Capillary	Packed	Capillary	Capillary
Active phase	Cross-Linked Methylsilicone	Cross-Linked Methylsilicone	Nonpolar	SE-52/54	SE-52/54
Column length (m)	25.	25.		25.	25.
Carrier gas	He	He		He	He
Substrate
Column diameter (mm)	0.2	0.2		0.22	0.22
Phase thickness (μm)	0.11	0.11		0.25	0.25
Program	60C(2min) => 30C/min => 210C(1min) => 10C/min => 240C	60C(2min) => 30C/min => 210C(1min) => 10C/min => 240C	not specified	50C(1min) => 15C/min => 240C => 4C/min => 300C	50C(1min) => 15C/min => 240C => 4C/min => 300C
I	2825.	2825.	2830.	2846.	2847.
Reference	Schneider, Jensen, et al., 1992	Schneider, Jensen, et al., 1992	Poling, 1991	Croker, Hedden, et al., 1990	Croker, Hedden, et al., 1990
Comment	MSDC-RI	MSDC-RI	MSDC-RI	MSDC-RI	MSDC-RI

Go To: Top, Kovats' RI, non-polar column, custom temperature program, Notes

Emery, Pearce, et al., 2001
Emery, R.J.N.; Pearce, D.W.; Pharis, R.P.; Reid, D.M.; Chinnappa, C.C., Stem elongation and gibberellins in alpine and prairie ecotypes of Stellaria longipes, Plant Growth Regul., 2001, 35, 1, 17-29, https://doi.org/10.1023/A:1013823517189 . [all data]

Morvan-Bertrand, Ernstsen, et al., 2001
Morvan-Bertrand, A.; Ernstsen, A.; Lindgård, B.; Koshioka, M.; le Saos, J.; Boucaud, J.; Prud'homme, M.-P.; Junttila, O., Endogenous gibberellins in Lolium perenne and influence of defoliation on their contents in elongating leaf bases and in leaf sheaths, Physiol. Plant., 2001, 111, 2, 225-231, https://doi.org/10.1034/j.1399-3054.2001.1110214.x . [all data]

Odén, Wang, et al., 1995
Odén, P.C.; Wang, Q.; Högberg, K.-A.; Werner, M., Transport and metabolism of gibberellins in relation to flower bud differentiation in Norway spruce (Picea abies), Tree Physiol., 1995, 15, 7-8, 451-456, https://doi.org/10.1093/treephys/15.7-8.451 . [all data]

Schneider, Jensen, et al., 1992
Schneider, G.; Jensen, E.; Spray, C.R.; Phinney, B.O., Hydrolysis and reconjugation of gibberellin A₂₀ glucosyl ester by seedlings of Zea mays L., Proc. Nat. Acad. Sci. U.S.A., 1992, 89, 17, 8045-8048, https://doi.org/10.1073/pnas.89.17.8045 . [all data]

Poling, 1991
Poling, S.M., Identification of endogenous gibberellins in immature navel orange fruit, J. Agric. Food Chem., 1991, 39, 4, 677-680, https://doi.org/10.1021/jf00004a010 . [all data]

Croker, Hedden, et al., 1990
Croker, S.J.; Hedden, P.; Lenton, J.R.; Stoddart, J.L., Comparison of gibberellins in normal and slender barley seedlings, Plant Physiol., 1990, 94, 1, 194-200, https://doi.org/10.1104/pp.94.1.194 . [all data]

Talón, Hedden, et al., 1990
Talón, M.; Hedden, P.; Primo-Millo, E., Gibberellins in Citrus sinensis: a comparison between seeded and seedless varieties, J. Plant Growth Regul., 1990, 9, 4, 201-206, https://doi.org/10.1007/BF02041963 . [all data]

Hedden, Croker, et al., 1989
Hedden, P.; Croker, S.J.; Rademacher, W.; Jung, J., Effects of the triazole plant growth retardant BAS 111..W on gibberellin levels in oilseed rape, Brassica napus, Physiol. Plant., 1989, 75, 4, 445-451, https://doi.org/10.1111/j.1399-3054.1989.tb05607.x . [all data]

Go To: Top, Kovats' RI, non-polar column, custom temperature program, References

Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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