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Light yellow to yellow-brown crystalline powder
160 °C/10 mmHg(lit.)
H302 Harmful if swallowed.
H312 Harmful in contact with skin.
H332 Harmful if inhaled.
H315 Causes skin irritation.
H319 Causes serious eye irritation.
H335 May cause respiratory irritation.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Prediction： 1H NMR (500 MHz, CDCl3): delta 4.09 (s, 2H), 7.54 (t, 2H, J = 7.80 Hz), 7.67 (t, 1H, J = 7.50 Hz), 7.93 (d, 2H, J = 7.3 Hz).