3-Methylphthalic anhydride(4792-30-7) MS
Molecular FormulaC9H6O3
Molecular Weight162.14
InChIInChI=1S/C9H6O3/c1-5-3-2-4-6-7(5)9(11)12-8(6)10/h2-4H,1H3
InChIKey TWWAWPHAOPTQEU-UHFFFAOYSA-N
SmilesC1(=O)C2=C(C(C)=CC=C2)C(=O)O1
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![](https://www.chemicalbook.com/Spectrum/4792-30-7_MS.gif)
Mass
MS-IW-3878
3-methylphthalic anhydride
C9H6O3 (Mass of molecular ion: 162)
Source Temperature: 130 °C
Sample Temperature: 90 °C
Direct, 75 eV
27.0 1.2
28.0 1.5
37.0 3.1
38.0 4.4
39.0 8.1
40.0 1.3
43.0 4.2
43.5 1.0
44.0 2.0
44.5 2.2
45.0 5.6
49.0 1.8
50.0 5.2
51.0 5.1
52.0 1.6
53.0 1.2
59.0 1.2
61.0 4.2
62.0 10.2
63.0 23.9
64.0 9.5
73.0 1.0
74.0 3.7
75.0 3.5
76.0 1.1
77.0 2.6
78.0 5.3
85.0 1.6
86.0 2.7
87.0 2.2
88.0 1.3
89.0 30.8
90.0 59.7
91.0 4.6
105.0 5.1
106.0 6.5
116.0 1.2
118.0 49.7
119.0 4.6
134.0 33.3
135.0 3.0
162.0 100.0
163.0 10.8
164.0 1.1