Products Description
4-dimethylaminopyridine, commonly referred to as DMAP, is a strong nucleophilic acylation catalyst. The resonance of the electron-donating dimethylamino group with the parent ring (pyridine ring) can strongly activate the nitrogen atoms on the ring for nucleophilic substitution, and significantly catalyze the acylation/esterification of alcohols and amines/acids with high resistance and low reactivity, with the activity of about 104~106 times that of pyridine. Acyl transfer is a common Chemicalbook transformation in nature and organic synthesis, in which chiral DMAP is a common asymmetric acyl transfer catalyst. Since 1996, Vedejs and Fu groups reported DMAP catalysts for central chirality and facial chirality respectively, chiral DMAP catalysts have been greatly developed, and various DMaps for central chirality, facial chirality, spiral chirality and central chirality have been reported successively, and have been well applied in many asymmetric acyl transfer reactions.
Package
1. Inner double plastic bags----25kg/Fiber drum (35*35*45cm, GW: 28kg, NW: 25kg);
2. Inner double plastic bags----5kg/Aluminum foil bag (GW: 6.5kg, NW: 5kg).
3. Inner double plastic bags----1kg/Aluminum foil bag (GW: 1.5kg, NW: 1kg).
P.S.: we accept packaging customization.
Delivery
1. Stock products are normally shipping within 3 working days.
2. For rush delivery, please contact our sales team for particular arrangement.
Shipping Details:
1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker.
2. Shipping details & shipping documents will be provided and sent by email.
3. We keep tracking the shippment until clients well received.
4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently.
Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,
Our company has a number of sales team, service and information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.
Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization, Keep moving!
Our advantages:
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD. is located in xingtai City, Hebei Province, China. It is a biotechnology enterprise engaged in the research, development, production and sales of animal and plant extracts, cosmetics, pharmaceutical raw materials and intermediates. The company has complete experimental facilities. And advanced testing instruments ensure the stability of product quality from all aspects. The company has a complete sales service system, the products are exported to countries all over the world, and have won a good international reputation with excellent quality and excellent service.
The company has been adhering to the basic principles of "integrity, quality, service, and win-win" to serve customers, constantly strict requirements, set goals, and implement win-win development.
1. All inquiries will be replied within 12 hours.
2. Dedication to quality, supply & service.
3. Strictly on selecting raw materials.
4. Reasonable & competitive price, fast lead time.
5. Sample is available for your evaluation & Formulation development.
6. Faster delivery:Sample order in stock and 3-7 days for bulk production.
7. We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. Or you also can choose your own shipping forwarder.
8. After-Sale Service:
1) International Authorized Third-Party Test For The Products You Demand.
2) 30 Days Warranty of quality of goods.
China
