Interference Standard 1 Back Catalog number: 53039 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72282 L-Tyrosine Price on request 681209 Halauxifen (free acid), 25mg Price on request BPAP 4,4'-(1-Phenylethylidene)bisphenol, 1.2ml x 50ug/ml, methanol Price on request