3-Methoxy-3-methyl-1-butanol

3-Methoxy-3-methyl-1-butanol (CAS 56539-66-3) is a glycol ether solvent commercially available under the trade names Solfit and Solfit S 110, and commonly abbreviated as MMB or referred to as 3-methoxyisobutanol. It carries no assigned E-code and is classified under HS code 29094990.

In waterborne coating and cleaning formulations, MMB acts as a coalescing solvent, reducing surface tension to promote film formation across a range of substrates. In personal care products such as hair sprays and skin serums, it functions as a carrier solvent, improving active ingredient solubility and enhancing skin feel without leaving residue. It is also used in printing inks to control drying rate and pigment dispersion.

MMB is supplied as a liquid and is registered under REACH. Procurement teams should confirm supplier SDS documentation and purity specifications prior to ordering, as grade availability varies by manufacturer. Standard packaging formats include drums and IBC containers.