Orchid Cellmark (formerly Helix Biotech) has been providing highly pure, highly specialized organic chemical standards to research and analytical communities for more than 20 years. We are pleased to be able to provide information on these chemicals on-line.
At this time, we carry standards for your research and analysis of chlorinated by-products of the bleaching process in pulp mill effluents.
We also recently added a line of standards to examine and monitor drinking water disinfection by-products. These include cholorinated phenols and derivatives, resin acids, haloketones (bromo- and mixed chlorobromopropanones), halonitromethanes, halomethanes, haloacetaldehydes, haloacids and haloacetonitriles for use in your research and/or monitoring in these areas. A number of deuterium and carbon-12 labeled analogues are also available.
We pride ourselves in our technical know-how and customer service. To that end, we are willing to consider any custom syntheses you may require. Examples of such custom syntheses include parabens, phthalate ester metabolites and a bisphenol A metabolite. We have also prepared a variety of C13-labeled haloacetic acids, haloacetamides and halonitromethanes. These latter compounds have been identified as toxic compounds in drinking water (see Technical References)
We are also able to provide bulk quantities - potentially up to 1 kg - of some of the products in our current product offering.