TOC Calibration Standard Back Catalog number: 59553 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D4911 trans-4'-(3,4-Difluorophenyl)bicyclohexyl-4-one, >98%, 1g Price on request 79291 4,4’-DDE Price on request CFN99646 Catechin, >98%, 20mg Price on request