CasNo.36983-12-7,Good Supplier D-p-methyI sulfone phenyl ethyl serinate,(36983-12-7) Suppliers

100 Gram	Negotiable

Min.Order :100 Gram
Purity: 99%
Payment Terms : L/C,D/A,D/P,T/T,Other

Keywords

D-p-Methyl sulfone phenyl ethyl serinate in stock Hangzhou Deli 36983-12-7 36983-12-7 good supplier

Quick Details

Appearance:solid
Application:Intermediate of Florfenicol
PackAge:customised
ProductionCapacity:|Metric Ton|Day
Storage:Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
Transportation:by sea, by air

Superiority:

We have several production sites which allow us to produce all of our products on regular basis.

We have a team of researchers and technicians, that constantly devote themselves in developing new products.

Our product quality is stable with many years of production experience accumulation.

Our sales team quotes as per client’s requirements with multilingual speakers of fast response.

We provide fast and safe delivery. We have international logistics services and can deliver services from major China ports and to client’s designated airport or even to door with custom clearing services.

We provide a range of supportive payment methods from T/T to L/C, which caters to clients with different financial situations and be as supportive as we can.

We have customized packing and reliable storage conditions. We deliver to you freshly made high quality materials and our staff are committed in meeting different packaging requirements as well.

We provide good after-sales service. If there’s any problem with receiving our products, either material-wise, package-wise or shipment-wise, you can come to our sales service team. We will not hold back in answering any questions that you have.

Details:

D-p-Methyl sulfone phenyl ethyl serinate is an important raw material for the synthesis of florfenicol. Florfenicol is a new generation of broad-spectrum antibiotics for chloramphenicol animals. It has been widely used in clinical medicine and agriculture. In recent years, the demand for it is increasing year by year.

Production:

In a 500ml reaction bottle, 34g copper sulfate was put in, 250ml purified water was stirred to dissolve, 19g glycine was added, 42g p-sulfone benzaldehyde was added, ammonia water was adjusted to pH=9, water solution temperature was controlled at 50℃ for 22 hours, filtration was performed, filter cake was dissolved in 300mL anhydrous ethanol, and 40g concentrated sulfuric acid was dropped, reflux was 2.5 hours. The filter cake was dissolved in water, the pH value of ammonia water was adjusted to 9, and solid was separated out. The racemate was dissolved in 3 times ethanol, and l-tartaric acid was added. After 2.5 hours of reflux, the solid was obtained as the product. Yield of 42.3%.