2,3-Dihydro-1,4-Benzodioxine-5-Carboxylic acid CAS No.4442-53-9 / Cat No.EBD48545
2,3-Dihydro-1,4-Benzodioxine-5-Carboxylic acid
2,3-dihydro-1,4-benzodioxine-5-carboxylic acid
2,3-dihydrobenzo[b][1,4]dioxine-5-carboxylic acid
2,3-dihydro-benzo[1,4]dioxine-5-carboxylic acid
7,10-dioxabicyclo[4.4.0]deca-1,3,5-triene-2-carboxylic acid
1,4-Benzodioxan-5-carboxylic acid
Properties
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Appearance:
white to light yellow crystal powder
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Density:
1.376 g/cm3
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Melting point:
90-94 °C(lit.)
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Boiling point:
334.1 °C at 760 mmHg
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Flashing point:
139.3 °C
Safety Information
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Symbol:
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Signal words:
Warning -
Hazard statements:
H315 Causes skin irritation.
H319 Causes serious eye irritation.
H335 May cause respiratory irritation.
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Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
NMR Spectrum
Prediction： 1H NMR (DMSO-d6): delta 4.27 (s, 4H), 6.84 (t, J = 7.2 Hz, 1H), 7.02 (d, J = 7.8 Hz, 1H), 7.20 (d, J= 7.5 Hz, 1H), 12.5 (bs, 1H)
1H NMR
13C NMR
