Protocatechuic acid, 1g Back Catalog number: 6050 Manufacturer: Extrasynthese Availability: In the manufacturer's stock Price on request - + Recommended 3809 Lactucin, 5mg Price on request 1295 4,4'-Dimethoxychalcone, 100mg Price on request 4966 A Cinnamic acid methylester, 1g Price on request