We are happy to provide Certificates of Analysis for our chemical products. If you do not see any Lot #s in the right hand box, simply make sure the Item Number and Lot Number are entered in the fields below and click Submit. If the information still cannot be found, contact our Certificate of Analysis department at CofA@SpectrumChemical.com or call 800-772-8786 and select Option 2 and then Option 1.