Welcome to Symtera Analytics LLC We provide high-quality analytical reference standards to the pharmaceutical, clinical, toxicology and life science industries. Our product catalog contains over 5,000 reference standards and is expanding every day. Is the product you need not available in our catalog? our team of experts specializes in custom synthesis of reference materials for API's impurities, degradants, scaffolds, intermediates, and metabolites. Contact one of our customer service representatives for a custom synthesis quote today. All products and services provided by Symtera Analytics are produced to the highest quality standards in the industry. Contact Symtera Analytics for solutions to all of your scientific reference standard and custom synthesis needs! Web link to Download our catalog http://symtera.ml/pdf/catalog/