The 3-Pentyn-2-ol,5-(dimethylamino)-2-methyl-, with the CAS registry number 25400-83-3, is also known as 5-Dimethylamino-2-methyl-3-pentyn-2-ol. This chemical's molecular formula is C₈H₁₅NO and molecular weight is 141.21. What's more, its systematic name is 5-(dimethylamino)-2-methylpent-3-yn-2-ol. It should be sealed and stored in a cool and dry place. Moreover, it should be protected from oxides. 

Physical properties of 3-Pentyn-2-ol,5-(dimethylamino)-2-methyl- are: (1)ACD/LogP: 0.57; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): -1.13; (4)ACD/LogD (pH 7.4): 0.35; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)ACD/KOC (pH 5.5): 1; (8)ACD/KOC (pH 7.4): 29.5; (9)#H bond acceptors: 2; (10)#H bond donors: 1; (11)#Freely Rotating Bonds: 3; (12)Polar Surface Area: 12.47 Å²; (13)Index of Refraction: 1.481; (14)Molar Refractivity: 42.33 cm³; (15)Molar Volume: 148.7 cm³; (16)Polarizability: 16.78×10^-24cm³; (17)Surface Tension: 36.7 dyne/cm; (18)Density: 0.949 g/cm³; (19)Flash Point: 77.5 °C; (20)Enthalpy of Vaporization: 51.78 kJ/mol; (21)Boiling Point: 208.9 °C at 760 mmHg; (22)Vapour Pressure: 0.0481 mmHg at 25°C.

Uses of 3-Pentyn-2-ol,5-(dimethylamino)-2-methyl-: it can be used to produce 1-dimethylamino-2,3-dichloro-4-methyl-2-penten-4-ol at the ambient temperature. It will need reagent Cl₂ and solvent CCl₄. The yield is about 96.4%.

When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. When using it, you need wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CC(C)(C#CCN(C)C)O
(2)InChI: InChI=1S/C8H15NO/c1-8(2,10)6-5-7-9(3)4/h10H,7H2,1-4H3
(3)InChIKey: VBARYRPUABJYGW-UHFFFAOYSA-N