2-Butoxyethanol is an organic solvent with the formula C6H14O2. It is a colorless liquid with a sweet, ether-like odour. It is a butyl ether of ethylene glycol, but should not be confused with the simple glycol as it is a glycol ether.

Diethylene glycol (DEG) is an organic compound described by the structural formula HO-CH2-CH2-O-CH2-CH2-OH. It is a clear, hygroscopic, odorless liquid. It is miscible with water and polar organic solvents such as alcohols and ethers.

Dipropylene glycol is the name given to a mixture of three isomeric chemical compounds, 4-oxa-2,6-heptandiol, 2-(2-Hydroxy-propoxy)-propan-1-ol, and 2-(2-Hydroxy-1-methyl-ethoxy)-propan-1-ol. It is a colorless, nearly odorless liquid with a high boiling point and low toxicity[2][3].

Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is an odorless, colorless, syrupy, sweet tasting liquid (although it should be noted that ethylene glycol is toxic, and ingestion can result in death).

It is the chemical having MF C6H14O2 and structural formula HO-(CH2)6-OH.

Propylene glycol, known also by the systematic name propane-1,2-diol, is an organic compound (a diol alcohol), with a faintly sweet taste, and is a colorless, nearly odorless, clear, viscous liquid that is hygroscopic and miscible with water, acetone, and chloroform.

Neopentyl glycol (IUPAC name 2,2-dimethyl-1,3-propanediol) is an organic chemical compound. It is used in the sythesis of polyesters, paints, lubricants, and plasticizers. When used in the manufacture of polyesters, it enhances the product's stability toward heat, light, and water.

Poly(ethylene glycol) (PEG), also known as poly(ethylene oxide) (PEO), polyoxyethylene (POE) and under the tradename Carbowax is the most commercially important type of polyether. PEG, PEO or POE refers to an oligomer or polymer of ethylene oxide.