Which selective pre-emergence herbicide, commercially sold under the trade name 'Machete', is standardly applied in transplanted rice fields within 2 to 3 days of planting?

Butachlor (Machete 50 EC at 1.5 kg a.i./ha or 5G granules) is applied within 48–72 hours of transplanting into standing water in paddy to inhibit lipid and protein synthesis in germinating grass weed seeds.