Pharmaceutical grade PG and / or VG should smell of NOTHING. If it smell's in the bottle but when you pour it out nothing then i would assume that it is the bottle material that smells. Either way, a reputable vendor should know what their containers are made of. If it smells strongly then it is either not PG or in fact could be ethylene glycol - what is used in anti-freeze and has a sweet smell not unlike acetone. If i were you i would contact the vendor and chuck it in the bin.