CTL Scientific Supply Corp is a provider of Chemicals, Test Papers & Test Kits, and Laboratory Equipment. CTL was started in 2006 with the goal of providing outstanding products, service, product info and support to not only valued long term clients but also to new customers. We carry a wide range of Macherey-Nagel test papers & test strips that allow the identification or semi-quantitative determination of more than 40 substances. Professional analysts as well as chemical laymen appreciate these tests because they are Easy, rapid and accurate. We also offer pH-Fix non-bleeding pH strips.