Solvent Red 23(85-86-9) IR2
Molecular FormulaC22H16N4O
Molecular Weight352.39
InChIInChI=1S/C22H16N4O/c27-21-15-10-16-6-4-5-9-20(16)22(21)26-25-19-13-11-18(12-14-19)24-23-17-7-2-1-3-8-17/h1-15,27H
InChIKey FHNINJWBTRXEBC-UHFFFAOYSA-N
SmilesC1(N=NC2=CC=C(N=NC3=CC=CC=C3)C=C2)=C2C(C=CC=C2)=CC=C1O
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![](https://www.chemicalbook.com/Spectrum/85-86-9_MS.gif)
Mass
MS-NW-8088
Sudan III
C22H16N4O (Mass of molecular ion: 352)
Source Temperature: 220 °C
Sample Temperature: 270 °C
Direct, 75 eV
18.0 1.5
27.0 1.4
28.0 2.4
38.0 1.0
39.0 4.0
50.0 4.1
51.0 10.7
52.0 1.9
63.0 5.5
64.0 4.5
65.0 5.9
74.0 1.1
75.0 3.5
76.0 10.7
77.0 44.0
78.0 3.9
88.0 1.4
89.0 4.8
90.0 2.0
91.0 4.0
92.0 6.9
93.0 1.4
101.0 5.4
102.0 3.6
103.0 1.3
104.0 1.7
105.0 11.0
113.0 1.5
114.0 5.9
115.0 45.7
116.0 4.9
120.0 2.5
127.0 1.3
128.0 8.0
129.0 5.4
130.0 1.4
142.0 2.2
143.0 70.2
144.0 8.9
152.0 2.1
156.0 1.8
165.0 1.1
167.0 1.2
170.0 4.0
171.0 25.9
172.0 3.1
176.0 1.7
181.0 4.2
182.0 1.3
189.0 4.0
190.0 2.0
191.0 2.6
195.0 3.2
196.0 1.3
197.0 3.5
201.0 1.0
217.0 1.7
218.0 3.4
219.0 4.9
220.0 1.7
230.0 1.8
231.0 1.3
232.0 1.6
246.0 2.9
247.0 90.5
248.0 16.5
249.0 1.7
275.0 3.4
313.0 1.0
323.0 1.1
324.0 1.0
351.0 1.5
352.0 100.0
353.0 26.3
354.0 3.7