3,4,5-TRIMETHOXYBENZOIC ANHYDRIDE(1719-88-6) 13C NMR
Molecular FormulaC20H22O9
Molecular Weight406.38
InChIInChI=1S/C20H22O9/c1-23-13-7-11(8-14(24-2)17(13)27-5)19(21)29-20(22)12-9-15(25-3)18(28-6)16(10-12)26-4/h7-10H,1-6H3
InChIKey LQJFTZJNDJDCKV-UHFFFAOYSA-N
SmilesC1(C(=O)OC(=O)C2=CC(=C(OC)C(OC)=C2)OC)C=C(C(OC)=C(OC)C=1)OC
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![](https://www.chemicalbook.com/Spectrum/1719-88-6_MS.gif)
Mass
MS-NW-6995
3,4,5-trimethoxybenzoic anhydride
C20H22O9 (Mass of molecular ion: 406)
Source Temperature: 220 °C
Sample Temperature: 170 °C
Direct, 75 eV
53.0 1.8
66.0 3.0
77.0 3.4
79.0 1.0
81.0 3.7
92.0 1.3
96.0 1.1
107.0 1.2
109.0 2.6
122.0 2.5
124.0 1.5
137.0 3.2
139.0 1.4
152.0 4.4
167.0 2.3
195.0 100.0
196.0 11.1
197.0 2.2
212.0 1.6
362.0 2.6
406.0 27.2
407.0 6.0
408.0 1.1