pH 4.0 Standard @ 25°C Back Catalog number: 59468 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0721.12-K-IO 1,2-Dimethylnaphthalene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 573-98-8 Price on request 679326 4-Benzoyl 4'-methyldiphenyl sulfide, 100mg Price on request 674435 Caffeoylputrescine hydrochloride, 10mg Price on request