For your convenience FULL CATALOG of ORGANIC SYNTHETIC OFFERINGS at Spectra Group is split in compound classes. If you know the structure or the class of materials you are looking for specifically, please browse below. In addition to various molecular building blocks, precursors and intermediates, we also make photo initiators, co-initiators, energy transfer donors, peroxides, benzophenones, xanthenes, fluorones, borates, cyanine borates and many other small molecule compounds found in photochemical preparations. All of our production is done in Ohio at our Millbury facilities with shipping provided worldwide. If you need that doesn't show on our catalogs, call us or email us and your project may be handled on an individual basis. Our pricing is fair, out skills extraordinary, our service is prompt and our compounds absolutely guaranteed to be pure.