Propionic acid Back Catalog number: 70345 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679731 2-Methyl-4-isothiazolin-3-one hydrochloride, 100mg Price on request 70248 Phenanthrene Price on request 674526 Benzyldimethyldecylammonium chloride, 10.0 µg/ml , Price on request