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Guanosine (5TMS)

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Replica Mass Spectra of Guanosine (5TMS)

replica	lib entry date	detection	method	species
2	01 February 2005	MS-TOF	M[6]	Reference Substance
3	01 February 2005	MS-TOF	M[6]	Reference Substance
16	28 August 2012		MassBank GC 2010 Ara
13	30 March 2011		Fiehn_GC_2010
14	28 August 2012		MassBank GC 2010 Kusano
5	19 July 2007	MS-TOF	VAR5	Reference Substance
6	12 May 2005		M[NIST]
7	01 February 2005	MS-TOF	M[6]	Reference Substance
15	28 August 2012		MassBank GC 2010 Tsujimoto
8	19 July 2007	MS-TOF	MDN35	Reference Substance
14 spectrum(a)
Page of 2 Results per page:

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Spectrum Details

analyte	Guanosine (5TMS)
analyte InChI	InChI=1S/C25H53N5O5Si5/c1-36(2,3)28-25-27-22-19(23(31)30(25)37(4,5)6)26-17-29(22)24-21(35-40(13,14)15)20(34-39(10,11)12)18(33-24)16-32-38(7,8)9/h17-18,20-21,24H,16H2,1-15H3,(H,27,28)/t18-,20-,21-,24-/m1/s1
analyte mass	644.15
chromatogram	1344EC07
citation	Wagner C, Sefkow M, Kopka J (2003) Phytochemistry 62, 887-900
authors	Kopka J, Max Planck Institute of Molecular Plant Physiology, Department of Molecular Plant Physiology (Prof. Willmitzer L), Am Muehlenberg 1, D-14476 Golm, Germany
lib entry date	01 November 2001
metabolite role	METB
retention time (sec)
retention index (VAR5 method, n-alkanes C10–C36)	2,761.12 (predicted, according to Strehmel, N. et.al)
base peak (m/z)	73
maximal intensity	999
mass-intensity-peaks cardinality	229 intensities
minimal m/z	70
maximal m/z	482
download JCAMP DX	SpectrumJcampDx.ashx?id=2b7dd994-c20f-4f3f-840f-39872ed3c3d4
download MSP	SpectrumMsp.ashx?id=2b7dd994-c20f-4f3f-840f-39872ed3c3d4

GC-Method

name	M[EIGTMS]
citation	Wagner C, Sefkow M, Kopka J (2003) Phytochemistry 62, 887-900

attribute	text	details
deconvolution	AMDIS, National Institute of Standards and Technology, Gaithersburg, MD, USA	DIRECTION:non scanning; WIDTH: 20; SUBTRACTION: two; RESOLUTION: high; SENSITIVITY: medium; SHAPE: high
derivatization	MEOX; TMS	Methoxyamination:60min37°C; Trimethylsilylation:>60min37°C
detector	MS-TOF	MZ:70-600; SCANS:6/s; Pegasus II TOF-MS; LECO, St. Joseph, MI, USA
extraction	methanol:water (4:1; v/v); 15min70°C
ion source	EI	70eV
metabolic inactivation	cut; liquid nitrogen; -80°C
partitioning	methanol fraction of a methanol:water:chloroform (approx. 2:2:1, v/v/v) partitioning
RI	ALKANE	C12, C15, C19, C22, C28, C32, C36
separation	GC	COLUMN:5%diphenyl-95%dimethylpolysiloxane (arylene), 30+10m, ID:0.25mm, DF:0.25microm, Rtx-5SilMS Integra-Guard, #NA (Restek, Bad Homburg, Germany); PROGRAM:iso2min80°C, ramp15°C/min, iso2min350°C; FLOW:Helium, 1.0ml/min; INJECTION:1microL, splitless, 230°C, 2min110psi; TRANSFER:250°C; IONSOURCE:200°C

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