Ready-to-use ELISA kits are available for the detection of EM66, an alias of the protein, secretogranin II. The official gene symbol is SCG2. The protein, with a mass of 70.9 kDa and length of 617 residues, is reported to be secreted. It is a member of the Chromogranin/secretogranin protein family and may be known by other names, including: SN, CHGC, secretoneurin, chromogranin-C, and secretogranin-2.