QC Standard 4 Back Catalog number: 53087 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3203.15-K-IO 10-trans-Pentadecenoic acid, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 321744-58-5 Price on request 2075.6-K-IP 2,4,5-Trichlorophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 95-95-4 Price on request 73479 3-Hydroxybutyric acid Price on request