Mass
MS-KW-0702
2,4,6,8-tetrachloropyrimido(5,4-d)pyrimidine
C6Cl4N4 (Mass of molecular ion: 268)
Source Temperature: 170 °C
Sample Temperature: 130 °C
Direct, 75 eV
28.0 2.2
35.0 1.1
36.0 6.8
38.0 5.1
44.0 1.9
47.0 7.5
49.0 2.4
50.0 2.0
61.0 1.5
64.0 1.2
73.0 24.7
74.0 12.0
75.0 4.1
76.0 21.3
77.0 1.1
82.0 1.9
84.0 1.2
85.0 17.2
86.0 1.6
87.0 7.4
99.0 3.0
100.0 1.4
102.0 3.9
103.5 12.5
104.5 12.0
105.5 3.9
111.0 19.3
112.0 1.0
113.0 6.4
120.0 14.9
122.0 9.6
124.0 1.5
134.0 2.4
135.0 1.5
136.0 1.5
146.0 2.5
148.0 1.6
163.0 1.2
172.0 4.8
174.0 3.0
181.0 4.8
183.0 4.7
185.0 1.5
233.0 63.4
234.0 5.2
235.0 61.5
236.0 5.0
237.0 19.9
238.0 1.6
239.0 2.1
268.0 78.6
269.0 6.4
270.0 100.0
271.0 7.9
272.0 47.6
273.0 3.7
274.0 10.3