CHROMONE-3-CARBOXYLIC ACID(39079-62-4)IR 6-FLUOROCHROMONE-3-CARBOXYLIC ACID 97(71346-17-3)IR 4-Oxo-4H-1-benzopyran-2-carboxylic acid(4940-39-0)¹³CNMR 4-Oxo-4H-1-benzopyran-2-carboxylic acid(4940-39-0)MS 4-Oxo-4H-1-benzopyran-2-carboxylic acid(4940-39-0)¹HNMR 4-Oxo-4H-1-benzopyran-2-carboxylic acid(4940-39-0)IR2 4-Oxo-4H-1-benzopyran-2-carboxylic acid(4940-39-0)IR1 4-Oxo-4H-1-benzopyran-2-carboxylic acid(4940-39-0)Raman CHROMONE(491-38-3)¹HNMR CHROMONE(491-38-3)IR CHROMONE(491-38-3)Raman CHROMONE(491-38-3)FT-IR 3-CYANOCHROMONE(50743-17-4)Raman 3-CYANOCHROMONE(50743-17-4)IR CHROMONE-3-CARBOXALDEHYDE(17422-74-1)MS CHROMONE-3-CARBOXALDEHYDE(17422-74-1)IR2 CHROMONE-3-CARBOXALDEHYDE(17422-74-1)IR1 CHROMONE-3-CARBOXALDEHYDE(17422-74-1)Raman