The IUPAC name of 2,5-Dimethyl-3-hexyne-2,5-diol is 2,5-dimethylhex-3-yne-2,5-diol. With the CAS registry number 142-30-3, it is also named as 3-Hexyne-2,5-diol, 2,5-dimethyl-. The product's categories are Acetylenes; Acetylenic Alcohols & Their Derivatives; Nonionic; Polymer Additives; Surfactants. Besides, it is white to light yellow crystalline flakes or powder, which should be stored in a sealed place. In addition, its molecular formula is C₈H₁₄O₂ and molecular weight is 142.20.

The other characteristics of this product can be summarized as: (1)EINECS: 205-533-4; (2)ACD/LogP: 0.29; (3)# of Rule of 5 Violations: 0; (4)ACD/LogD (pH 5.5): 0.29; (5)ACD/LogD (pH 7.4): 0.29; (6)ACD/BCF (pH 5.5): 1; (7)ACD/BCF (pH 7.4): 1; (8)ACD/KOC (pH 5.5): 34.33; (9)ACD/KOC (pH 7.4): 34.33; (10)#H bond acceptors: 2; (11)#H bond donors: 2; (12)#Freely Rotating Bonds: 3; (13)Index of Refraction: 1.489; (14)Molar Refractivity: 40.11 cm³; (15)Molar Volume: 139 cm³; (16)Surface Tension: 41.2 dyne/cm; (17)Density: 1.023 g/cm³; (18)Flash Point: 86 °C; (19)Melting point: 89 °C; (20)Water solubility: 240 g/L (20 °C); (21)Enthalpy of Vaporization: 51.33 kJ/mol; (22)Boiling Point: 205 °C at 760 mmHg; (23)Vapour Pressure: 0.0611 mmHg at 25 °C.

Preparation of 2,5-Dimethyl-3-hexyne-2,5-diol: this chemical can be prepared by the reaction of Acetone with Acetylene. This reaction needs benzene and  Potassium hydroxide at temperature of 35-40 °C. Then use Hydrochloric acid to acidize.

Uses of 2,5-Dimethyl-3-hexyne-2,5-diol: this chemical is an intermediate of herbicides, adhesives, metal surface treatment auxiliaries, lubricants, defoamers. It is also as a surfactant. Moreover, it can be used for the production of polyurethane polyol. Similarly, it can be used to get 3,4-Dibromo-2,5-dimethyl-hexa-2,4-diene.



This reaction needs 40percent aq. HBr at temperature of 56.9 °C for 5 hours. The yield is 50 %.

When you are using this chemical, please be cautious about it as the following: it may cause sensitization by inhalation and skin contact. Please keep container tightly closed. And you should avoid contact with skin and eyes, so please suitable protective clothing and gloves.

People can use the following data to convert to the molecule structure.
(1)Canonical SMILES: CC(C)(C#CC(C)(C)O)O
(2)InChI: InChI=1S/C8H14O2/c1-7(2,9)5-6-8(3,4)10/h9-10H,1-4H3
(3)InChIKey: IHJUECRFYCQBMW-UHFFFAOYSA-N

The toxicity data is as follows: