‌ 3-Hydroxy-N,N-diethylaniline appears as white to rose-red crystals, sometimes as flakes, granules, or gray-brown to rose or red. In addition, it may also appear as white rhombus crystals.

3-Hydroxy-N,N-diethylaniline has a wide range of uses, mainly including the following aspects:

‌1. Dye intermediates:
It is an important intermediate for rose essence, acid pink, basic rhodonium red 12, disperse fluorescent series dyes 3, etc. In dye synthesis, it plays a key role and contributes to the color formation and stability of the dye.

‌2. Organic synthesis:
It is also used in other organic synthesis reactions as an important intermediate for synthetic drugs, color film developers, etc.

3. Blue disperse dye intermediate:
As a newly developed blue disperse dye intermediate, the disperse blue synthesized from this intermediate has excellent dyeing effect after compounding.

In summary, 3-hydroxy-N,N-diethylaniline has wide application value in dyes, organic synthesis and blue disperse dyes.

3-Diethylaminophenol Chemical Properties
Melting point 69-72 °C (lit.)
Boiling point 170 °C/15 mmHg (lit.)
density 1.0203 (rough estimate)
vapor pressure 0.345Pa at 25℃
refractive index 1.4820 (estimate)
Fp 141 °C
storage temp. Inert atmosphere,Room Temperature
solubility 4.087g/L in organic solvents at 20 ℃
pka 10.08±0.10(Predicted)
form Flakes or Granules
color Gray-brown to rose or red
Water Solubility <0.1 g/100 mL at 20.5 ºC
BRN 908212
LogP 0.929 at 23℃
CAS DataBase Reference 91-68-9(CAS DataBase Reference)
NIST Chemistry Reference Phenol, 3-(diethylamino)-(91-68-9)
EPA Substance Registry System m-(Diethylamino)phenol (91-68-9)

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