Robuta

https://webbook.nist.gov/cgi/inchi/InChI%3D1S/C4H10N2O/c1-3-5-6-4(2)7/h5H%2C3H2%2C1-2H3%2C(H%2C6%2C7) Acetic acid, 2-ethylhydrazide acetic acid