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PMG Aspergillus nidulans metabolite library v.01 (Last update 05/10/17)

Showing Card for Stearic acid (TMS) (PMG000026)

 

 

Mass spectrum

(Rel abundance vs m/z)

Stearic acid (TMS)

Peaks

 

( 55  141) ( 56   49) ( 57   97) ( 69   62) ( 73  575)

( 75  376) ( 95   45) ( 97   47) (116   63) (117  697)

(118   83) (129  355) (131   85) (132  430) (133   72)

(145  300) (341 1000) (342  294) (343   90)

 

Average Retention time (min)

 

36.44

 

Quant mass (Da)

 

341

 

 

 

 

 

 

Common Name

 

Stearic acid

 

Structure

 

Stearic acid

 

Synonym(s)

 

Octadecanoic acid; Stearate

 

KEGG ID

 

C01530

 

Golm Metabolome Database ID

 

A225002

 

PubChem CID

 

5281

 

CAS Registry Number

 

57-11-4

 

Biosynthetic pathways (KEGG)

map00061Fatty acid biosynthesis map01040Biosynthesis of unsaturated fatty acids

Monoisotopic mass (Da)

 

284.2715

 

Average Molecular Mass (Da)

 

284.4772

 

Molecular Formula

 

C18H36O2

 

Chemical Group

 

Fatty acyls; Fatty acids and conjugates

 

 

Analyzer

 

Agilent 6890 MS platform; 5973 series mass selective detector (MSD); 7683 autosampler

 

Carrier gas

Helium

Flow rate

 

1 mL min-1

 

Column

 

HP-5MS, length; 30 m, i.d.; 0.25 mm, film thickness 0.25 μm, Agilent Technologies Inc.

 

Ionization

 

Electron Impact (EI), Positive

 

Mass range

 

50-800 Da

 

Injector

 

10:1 split mode; temperature of 230oC

 

Oven temperature

 

70oC stable 5 min; 5oC min-1 increase to 295oC;

stable 2 min

 

 

Curator(s): M. LYKOGIANNI, Dr KA ALIFERIS