1 Methods: The fluorescence characteristics of astragaloside anisic reaction product were used to determine astragaloside in serum.

2 In the region the Middle Triassic Anisic Stage stratigraphic development and facies variation are rather violent.

3 The present invention relates to selective hydrogenation process of methyl methoxybenzoate to synthesize anisic aldehyde, and belongs to the field of fine chemical catalysis technology.

4 Anisic acid is separated from the residue of producing anisic aldehyde and synthetized methyl anisate. The detailed reaction conditions have been discussed, satisfactory results are obtained.

5 Aromatics, a Division of Atul Limited, India, is a leading manufacturer of Para cresol and its downstream products such as Para Anisic Aldehyde and Para Anisyl Alcohol.

6 Anisic acid was seperated from the residue of producing anisic aldehyde and used to synthesize ethyl anisate. The detailed reaction conditions had been discussed, satisfactory results were obtained.

7 Methyl methoxybenzoate and hydrogen are led continuous into fixed bed reactor and reacted at 300-600 deg. c to obtain anisic aldehyde in rather high selectivity.

8 Anisic acid is separated from the residue of producing anisic aldehyde and synthetized methyl anisate.

9 The present invention features the multiple phase selective hydrogenation process to synthesize anisic aldehyde with methyl methoxybenzoate.