Chemical identity reference for every compound we supply — CAS registry number, molecular formula, amino-acid sequence or composition, physical form and the purity method stated on the certificate of analysis. Each sheet links to the matching product page and to the COA library. For what the research literature reports on each compound, see the Research Center guides instead.
How to read a data sheet: CAS is the Chemical Abstracts Service registry number that uniquely identifies the substance; the molecular formula counts the atoms of each element in one molecule; the sequence lists the amino-acid residues from the N-terminus to the C-terminus; form describes the physical state as supplied (lyophilized powder or sterile solution); and purity names the analytical method used on the certificate of analysis (HPLC for peptides, USP grade for solvents). Reconstitution solvents and lab supplies have no CAS or sequence because they are not single-molecule research compounds.