Frequently Asked Questions Live Chat and Frequently Asked Questions are available for this Product. Other Notes May also be liquid! Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. M4667.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin. Packaging 1, 5, 10 g in glass bottle |