CAS RN of 3-nitrophthalic acid: 603-11-2. The appearance is a class of colored crystalline powder. It is soluble in hot water, methanol and ethanol, which is soluble in ether and insoluble in chloroform, carbon tetrachloride, carbon disulfide and benzene. It is used as an organic synthesis intermediate, which can be used in synthetic medicine, dyestuff, crop protection and so on.
