In the title structure. C7H9N3O2·H2O. there are two formula units in the asymmetric unit. The molecule is a zwitterion. https://www.remtavares.com/best-offer-Merrick-Backcountry-Grain-Free-Kitten-Pate-Canned-Wet-Cat-Food-5-5-oz-Cans-Case-of-24-p14288-limited-choice/