Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H302Harmful if swallowed

H314Causes severe skin burns and eye damage

H332Harmful if inhaled

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P301+P330+P331IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P310Immediately call a POISON CENTER or doctor/physician.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P330Rinse mouth.

P363Wash contaminated clothing before reuse.

P405Store locked up.

P501Dispose of contents/container to..…

5-[ethyl(2-hydroxyethyl)amino]pentan-2-one Chemical Properties,Usage,Production

Uses

5-[ethyl(2-hydroxyethyl)amino]pentan-2-one can be used as organic synthesis intermediate and pharmaceutical intermediate, mainly used in laboratory research and development process and chemical production process.

Synthesis

30 g of N-ethylethanolamine, 1.2 g of tetrabutylammonium bromide, 25 g of potassium hydroxide, 240 g of chloroform,120g of water was added to the reaction flask, and then the temperature was controlled at 20 to 30 ° C, 38 g of 5-chloro-2-pentanone was added dropwise, and after the addition was completed, the mixture was stirred.Should be 3 hours, static layering, the water phase is discarded, the organic layer is added 24g anhydrous sodium sulfate, the temperature is controlled at 10 ~ 20 ° C, stirred and dried 1Hour, filtration, the filtrate is the organic phase of the condensation product, the content of which is detected, the condensation product is 51.7g, and the molar yield is 94.7% (to 5-Chloro-2-pentanone), GC purity ≧ 98.5%.