Mass
MS-IW-5487
3-methyl-2-oxo-1-oxaspiro(4.5)dec-3-ene-4-carboxylic acid
C11H14O4 (Mass of molecular ion: 210)
Source Temperature: 160 °C
Sample Temperature: 140 °C
Direct, 75 eV
17.0 1.3
18.0 7.4
27.0 4.5
28.0 2.7
29.0 2.7
39.0 9.1
40.0 1.6
41.0 11.5
42.0 3.0
43.0 5.4
44.0 4.0
50.0 1.0
51.0 3.1
52.0 1.4
53.0 3.7
54.0 1.8
55.0 10.8
56.0 3.6
63.0 2.0
64.0 1.2
65.0 2.7
66.0 3.0
67.0 15.5
68.0 3.5
69.0 4.4
70.0 2.0
77.0 4.4
78.0 2.5
79.0 4.7
80.0 2.5
81.0 5.1
82.0 2.9
83.0 1.4
84.0 4.3
85.0 1.6
87.0 1.9
91.0 6.0
92.0 2.2
93.0 2.9
94.0 3.5
95.0 4.0
96.0 1.5
97.0 2.2
98.0 3.3
103.0 1.4
105.0 3.1
107.0 1.7
108.0 10.3
109.0 6.8
110.0 2.6
111.0 4.1
112.0 3.9
113.0 1.6
115.0 4.2
116.0 1.2
117.0 3.0
118.0 2.2
119.0 3.9
120.0 1.8
121.0 3.7
122.0 3.6
123.0 1.9
125.0 1.5
126.0 12.6
127.0 2.4
128.0 3.6
129.0 2.8
130.0 3.1
131.0 2.4
135.0 4.6
136.0 10.1
137.0 18.1
138.0 3.4
139.0 3.3
140.0 1.8
145.0 1.4
146.0 3.8
147.0 2.7
148.0 2.6
149.0 7.6
150.0 3.9
151.0 1.1
154.0 21.4
155.0 8.8
156.0 2.4
163.0 3.1
164.0 14.6
165.0 100.0
166.0 15.8
167.0 4.9
168.0 2.6
174.0 2.7
182.0 1.7
192.0 12.3
193.0 1.8
210.0 17.9
211.0 2.5