Bis(4-hydroxyphenyl)methane Back Catalog number: 71994 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-D Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 675247 Picoxystrobin, 100 µg/ml, Acetonitrile, 5ml Price on request 680684 Diethylaminohydroxybenzoyl hexyl benzoate, 100mg Price on request