![图谱](https://www.chemicalbook.com/Spectrum/553-19-5_MS_1.jpg)
Mass
MS-IW-5168
8,8-dimethylpyrano(3,2-g)chromen-2(8H)-one
C14H12O3 (Mass of molecular ion: 228)
Source Temperature: 140 °C
Sample Temperature: 130 °C
Direct, 75 eV
39.0 1.0
43.0 1.1
51.0 2.1
63.0 1.5
64.0 1.4
69.0 1.7
77.0 1.5
78.5 1.4
86.0 1.1
92.5 5.2
114.0 2.0
115.0 1.6
127.0 1.9
128.0 4.4
129.0 1.5
184.0 1.1
185.0 13.3
186.0 1.7
213.0 100.0
214.0 14.3
215.0 1.5
228.0 18.8
229.0 3.0