Pigment Red 3(2425-85-6) IR1
Molecular FormulaC17H13N3O3
Molecular Weight307.3
InChIInChI=1S/C17H13N3O3/c1-11-6-8-14(15(10-11)20(22)23)18-19-17-13-5-3-2-4-12(13)7-9-16(17)21/h2-10,21H,1H3
InChIKey ZLFVRXUOSPRRKQ-UHFFFAOYSA-N
SmilesC1(N=NC2=CC=C(C)C=C2[N+]([O-])=O)=C2C(C=CC=C2)=CC=C1O
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![](https://www.chemicalbook.com/Spectrum/2425-85-6_MS.gif)
Mass
MS2003-01811WA
1-(4-methyl-2-nitrophenylazo)-2-naphthol
C17H13N3O3 (Mass of molecular ion: 307)
Source Temperature: 250 °C
Sample Temperature: 160 °C
Direct, 70 eV
18.0 4.1
27.0 1.0
28.0 2.8
39.0 3.8
44.0 2.2
50.0 1.9
51.0 5.5
52.0 3.0
53.0 1.9
62.0 1.4
63.0 4.8
64.0 2.0
65.0 6.4
66.0 2.2
74.0 1.3
75.0 4.7
76.0 3.6
77.0 9.1
78.0 5.3
87.0 1.1
88.0 2.9
89.0 7.2
90.0 1.5
91.0 4.1
92.0 1.2
93.0 1.0
101.0 10.1
102.0 8.4
103.0 2.9
104.0 3.1
105.0 1.1
113.0 3.2
114.0 12.0
115.0 52.7
116.0 5.8
127.0 1.8
128.0 16.1
129.0 8.6
130.0 3.4
131.0 2.0
142.0 2.3
143.0 100.0
144.0 11.3
145.0 1.1
153.5 1.6
156.0 3.9
171.0 25.4
172.0 3.0
189.0 2.6
190.0 1.4
191.0 1.0
202.0 3.8
203.0 2.5
204.0 2.6
205.0 1.1
216.0 1.6
217.0 2.5
218.0 4.4
219.0 1.7
231.0 5.0
232.0 6.4
233.0 2.4
234.0 1.9
245.0 1.5
246.0 6.6
247.0 2.3
259.0 1.5
260.0 8.2
261.0 3.0
262.0 1.2
273.0 1.8
274.0 2.4
275.0 16.1
276.0 3.2
290.0 22.5
291.0 4.9
307.0 59.6
308.0 11.8
309.0 1.5