Tetrachlorophthalic acid (632-58-6) MS
Molecular FormulaC8H2Cl4O4
Molecular Weight303.91
InChIInChI=1S/C8H2Cl4O4/c9-3-1(7(13)14)2(8(15)16)4(10)6(12)5(3)11/h(H,13,14)(H,15,16)
InChIKey WZHHYIOUKQNLQM-UHFFFAOYSA-N
SmilesC1(C(O)=O)=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C(O)=O
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![](https://www.chemicalbook.com/Spectrum/632-58-6_MS.gif)
Mass
MS-NW-0790
tetrachlorophthalic acid
C8H2Cl4O4 1/2H2O (Mass of molecular ion: 302)
Source Temperature: 210 °C
Sample Temperature: 180 °C
Direct, 75 eV
17.0 3.1
18.0 14.3
28.0 14.2
32.0 2.6
35.0 2.5
36.0 10.6
38.0 1.6
41.0 1.1
43.0 1.2
44.0 8.9
45.0 1.4
47.0 6.7
48.0 2.6
49.0 2.3
53.5 2.8
54.5 1.0
55.0 1.3
57.0 1.2
60.0 7.0
67.5 4.8
68.5 1.7
69.0 1.0
71.0 22.0
72.0 13.0
73.0 5.4
83.0 3.1
84.0 1.3
85.0 2.7
86.0 1.3
87.0 2.3
88.5 8.4
89.0 1.9
89.5 7.9
90.0 1.1
90.5 2.6
94.0 1.0
95.0 7.3
96.0 1.2
97.0 2.9
102.5 1.3
103.5 1.3
106.0 17.3
106.5 1.1
107.0 43.0
107.5 1.5
108.0 13.3
109.0 11.5
110.0 1.9
111.0 1.3
118.0 9.2
120.0 9.8
121.0 5.1
122.0 3.4
130.0 2.5
131.0 1.0
132.0 1.7
135.0 3.8
137.0 1.1
142.0 43.7
143.0 5.1
144.0 28.4
145.0 3.1
146.0 4.9
165.0 1.0
167.0 1.4
177.0 20.4
178.0 3.3
179.0 20.5
180.0 3.2
181.0 7.2
182.0 1.1
183.0 1.0
205.0 3.2
207.0 3.2
209.0 1.2
212.0 51.1
213.0 5.4
214.0 65.6
215.0 6.8
216.0 31.9
217.0 3.4
218.0 7.3
240.0 76.9
241.0 13.7
242.0 100.0
243.0 17.6
244.0 48.9
245.0 8.6
246.0 10.8
247.0 1.9
248.0 1.0
258.0 9.4
259.0 1.0
260.0 11.9
261.0 1.0
262.0 6.0
264.0 1.2
284.0 41.4
285.0 4.9
286.0 53.4
287.0 6.2
288.0 26.3
289.0 3.0
290.0 5.9
302.0 3.2
304.0 4.2
306.0 2.0