![图谱](https://www.chemicalbook.com/Spectrum/68892-41-1_MS_1.jpg)
Mass
MS2014-05035CW
5'-O-(4,4'-dimethoxytrityl)-N(2)-isobutyryl-2'-deoxyguanosine
C35H37N5O7 (Mass of molecular ion: 639)
Source Temperature: 250 °C
Sample Temperature: 80 °C
Direct, 70 eV
27.0 1.3
28.0 1.2
39.0 1.3
41.0 2.4
42.0 1.0
43.0 8.1
53.0 2.6
55.0 1.0
69.0 1.8
70.0 1.1
71.0 1.9
77.0 3.3
81.0 9.3
82.0 1.0
92.0 1.2
97.0 1.1
98.0 1.4
105.0 4.9
107.0 1.3
108.0 1.6
109.0 3.5
110.0 2.8
113.0 1.1
134.0 1.9
135.0 13.4
136.0 2.0
151.0 22.3
152.0 10.9
153.0 2.2
165.0 3.7
178.0 2.0
181.0 1.3
189.0 1.8
195.0 3.9
196.0 1.9
197.0 1.7
202.0 3.4
203.0 1.0
211.0 1.1
213.0 4.2
214.0 1.2
215.0 5.4
216.0 2.1
217.0 1.7
221.0 10.0
222.0 1.3
225.0 1.1
226.0 2.0
227.0 5.6
228.0 3.3
229.0 3.2
243.0 11.4
244.0 2.9
245.0 3.0
259.0 3.2
260.0 1.3
271.0 1.1
273.0 3.5
288.0 8.5
289.0 2.3
303.0 100.0
304.0 28.4
305.0 4.2
320.0 3.9
400.0 2.1