The Diethylene glycol monobutyl ether with CAS registry number of 112-34-5 is also called Ethanol,2-(2-butoxyethoxy)-. The IUPAC name is 2-(2-butoxyethoxy)ethanol. Its EINECS registry number is 203-961-6. In addition, the molecular formula is C₈H₁₈O₃ and the molecular weight is 162.23. It is a kind of colourless liquid with a mild odour and belongs to the classes of Ethylene Glycols Monofunctional Ethylene Glycols and Monofunctional Ethylene Glycols. And it is stable and incompatible with strong oxidizing agents and strong bases.

Physical properties about this chemical are: (1)ACD/LogP: 0.44; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.44; (4)ACD/LogD (pH 7.4): 0.44; (5)ACD/BCF (pH 5.5): 1.27; (6)ACD/BCF (pH 7.4): 1.27; (7)ACD/KOC (pH 5.5): 41.26; (8)ACD/KOC (pH 7.4): 41.26; (9)#H bond acceptors: 3; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 9; (12)Polar Surface Area: 38.69 Å²; (13)Index of Refraction: 1.43; (14)Molar Refractivity: 44.13 cm³; (15)Molar Volume: 170.8 cm³; (16)Polarizability: 17.49 ×10^-24cm³; (17)Surface Tension: 32 dyne/cm; (18)Density: 0.949 g/cm³; (19)Flash Point: 100 °C; (20)Enthalpy of Vaporization: 54.29 kJ/mol; (21)Boiling Point: 230.4 °C at 760 mmHg; (22)Vapour Pressure: 0.0126 mmHg at 25°C.

Preparation of Diethylene glycol monobutyl ether: it can be prepared by butanol and ethyl ether boron trifluoride. This reaction will need reagent epoxyethane. The reaction time is 2-3 hours at reaction temperature of 75-80 °C. After the reaction, use butanol sodium to make pH into 8, then put it into the distillation tower for distillation.

Uses of Diethylene glycol monobutyl ether: it can be used as solvent of nitrocellulose, varnish, printing ink, the oil ans the resin. It also can be used for adhesive thinner and emulsioni paint stabilizer. In addition, it can react with (2-methoxy-phenoxy)-acetyl chloride to get Butoxyethoxyethyl o-methoxyphenoxyacetate. This reaction will need reagent CHCl₃. The reaction time is 21 hours by heating. The yield is about 69.01%.

When you are using this chemical, please be cautious about it as the following:
It is irritating to the eyes. during using it, avoid contact with skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES:CCCCOCCOCCO
(2)InChI:InChI=1/C8H18O3/c1-2-3-5-10-7-8-11-6-4-9/h9H,2-8H2,1H3
(3)InChIKey:OAYXUHPQHDHDDZ-UHFFFAOYAO

The toxicity data is as follows: