Metamitron is an organic compound used as a selective pre- and post-emergence herbicide in sugar beets.

[3] Metamitron is marketed under the trade name Goltix by ADAMA in Europe, the United Kingdom,[4] New Zealand, and South Africa.

It possesses a triazine ring like other organic compounds that use cyanuric chloride as a precursor.

It is a modification of the chemical 1,2,4-triazin-5(4H)-one, with methyl, amino, and phenyl group substitutions at positions 3, 4, and 6.

[6] Resistance to metamitron has been found in Chenopodium album growing as weeds among sugar beet fields in Belgium, caused by a mutation in serine 264.