Tert-butyl P,P- dimethylphosphonoacetate

62327-21-3

Resistant dextrin

triethyl phosphonoacetate

867-13-0

trimethyl phosphonoacetate

5927-18-4

2-(4-bromomethyl)phenylpropionic acid

111128-12-2

2-Nitrobenzaldehyde

552-89-6

Acetyl Triethyl Citrate

77-89-4

Diethyl Cyanomethylphosphonate

2537-48-6

Tert-Butyl Diethyl Phosphonoacetate

27784-76-5

Methyl 2-cyclopentane carboxylate

10472-24-9

The gap in pharmaceutical intermediates is large

China has become the world's largest producer of antipyretic analgesics, the output of aspirin, paracetamol, metamizole and other varieties has exceeded 10,000 tons, and the output of phenacetin, aminopyrine, antipyrine and other varieties has exceeded 1000 tons. At present, the production of antipyretic analgesics in China has grown rapidly, and it is expected to increase at a rate of about 8% in the future. The output of intermediates for the supporting production of antipyretic analgesics is large, and there are many production enterprises. With the growth of antipyretic analgesics, the intermediates have also developed considerably.

Production characteristics of pharmaceutical intermediates

Looking at the entire industry, the current production of pharmaceutical intermediates in China has six characteristics:

Introduction to pharmaceutical intermediates

The so-called pharmaceutical intermediates are actually some chemical raw materials or chemical products used in the process of drug synthesis. This chemical product, which does not require a drug production license, can be produced in ordinary chemical plants, as long as it reaches some level, it can be used for the synthesis of drugs.

Industrial application of nano calcium carbonate

Nano calcium carbonate is used in the feed industry and can be used as a calcium supplement to increase the calcium content of feed. Used in cosmetics, due to its high purity, good whiteness and small particle size, it can partially replace titanium dioxide, and adding nano calcium carbonate to toothpaste can improve its extrusion performance. With the rapid development of China's rubber, plastics, papermaking, coatings, inks and other industries, the continuous improvement of product quality and industry standards, nano calcium carbonate will be widely used in various industries to replace imported similar products.

Application range of nano calcium carbonate

Main applications: PVC profiles, pipes; Wire and cable outer skin granules; Production of PVC film (calendered film), footwear manufacturing (such as PVC soles and decorative patches), etc. Suitable for engineering plastics modification, PP, PE, PA, PC, etc. Application characteristics: Because the surface of active nano calcium carbonate is lipophilic and hydrophobic, it has good compatibility with resin, which can effectively improve or adjust the rigidity, toughness, finish and flexural strength of products; Improve the processing performance, improve the rheological properties, dimensional stability and heat stability of the product, which has the effect of filling and strengthening and toughening, which can replace some expensive fillers and aids, reduce the amount of resin, thereby reducing the production cost of products and improving market competitiveness.

Production process of nano calcium carbonate

The production process of nano calcium carbonate mainly uses carbonization method, mainly including batch carbonization method, continuous spray carbonization method, hypergravity carbonization method and other production methods. The production process of heavy calcium carbonate is mainly crushing, ultra-fine crushing, grading and surface modification. The production process of light calcium carbonate generally uses limestone as raw material to prepare precipitated calcium carbonate products by calcination, digestion, carbonization, separation, drying, grading, packaging and other processes.

A brief understanding of nano-calcium carbonate

Nano calcium carbonate is also known as ultrafine calcium carbonate [1]. The name of the standard is ultrafine calcium carbonate. The most mature industry for the application of nano calcium carbonate is the plastic industry, which is mainly used in high-grade plastic products. It can improve the rheology of plastic masterbatches and improve their formability. Used as plastic filler has the effect of toughening and reinforcing, improving the flexural strength and flexural elastic modulus of plastics, heat distortion temperature and dimensional stability, while also giving plastics heat hysteresis. Nano calcium carbonate is used in ink products to show excellent dispersion and transparency and excellent gloss, as well as excellent ink absorption and high dryness. Nano calcium carbonate is used as an ink filler in resin ink, which has good stability and high gloss, and does not affect the drying performance of printing ink. Strong adaptability and other advantages.

Loxoprofen sodium

Loxoprofen sodium was first developed by Sankyo Co., Ltd in Japan. Now loxoprofen sodium is the best-selling non-steroidal anti-inflammatory drug in Japan. Compared with similar drugs in clinical practice, loxoprofen sodium has the following characteristics: stronger (good clinical effect), faster (peak plasma concentration within 30 minutes of oral administration), safer (less side effects). Another type of characteristics is a wide range of indications, clinical can be widely used in rheumatoid arthritis, low back pain, periarthritis of shoulder, neck and wrist syndrome and other anti-inflammatory analgesia, analgesia and inflammation after surgery, trauma and tooth extraction and acute upper respiratory tract inflammation of antipyretic analgesia.

Xiamen Haichuanda Industry and Trade Co., Ltd. was established in 2005. We are specialized in manufacturing and marketing chemical products. Combine advanced technology with precise analytical instruments, we can assure the quality of products.

Xiamen Haichuanda Industry and Trade Co., Ltd. was established in 2005. We are specialized in manufacturing and marketing chemical products. Combine advanced technology with precise analytical instruments, we can assure the quality of products.

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