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Hangzhou Dingyan Chem Co., Ltd
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Colorless acicular or lamellar crystals, softened at 277℃ and decomposed at 287℃. The solubility in water at 25℃ is 41.9g/L, slightly soluble in alcohol but insoluble in ether and chloroform. Sweet taste.
Melting point: 282 & ordm; C
Water solubility: 41.6G/L(25º C)
Specific rotation: 12.4º (C = 11, 6 NHCL)
Property description: colorless acicular or sheet crystal, softening at 277℃, decomposition at 287℃. The solubility in water at 25℃ is 41.9g/L, slightly soluble in alcohol but insoluble in ether and chloroform. Sweet taste. Melting point 282°C, specific rotation 12.4°(C =11,6NHCl
From pig and cow blood. Pig blood powder was prepared by spray drying, about 18kg for every 100kg of pig blood. L-histidine is commonly used as its hydrochloride ([7048-02-4]). The eluent containing l-histidine was concentrated until crystallization appeared, and the pH value was adjusted to 2.5 with hydrochloric acid while hot. Ethanol twice the solution amount was added immediately, and then it was allowed to stand, precipitate and filter to obtain the crude product of l-histidine hydrochloride, which was decolorized, recrystallized and dried. L-histidine can also be extracted from the hydrolyzed products of degreased soybeans.
It is an important component of amino acid infusion and compound amino acid preparation. It can be used to treat gastric ulcer. It's also used in biochemical research
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Hangzhou Dingyan Chem Co., Ltd
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White powder, 201% content. Hangzhou Dingyan Chemical Co., Ltd. is located in the Xiasha Economic Development Zone of Hangzhou, the capital city of Zhejiang Province, on the southeast coast of China. It is a company specializing in the development and sales of high-tech products such as pharmaceutical raw materials, pharmaceutical intermediates, fine chemicals and biochemical reagents.
A modern private enterprise integrated with self-operated import and export.
Since its establishment, the company has adhered to the development path of "technological innovation" and attached great importance to scientific and technological innovation research and development. The company's high-quality products are sold well in more than 60 countries and regions such as North America, Western Europe, Southeast Asia, Central and South America.
At present, it has established long-term and stable cooperative relations with pharmaceutical companies in Europe, the United States, Greece, Germany, Iran, Russia, South Korea, India and other countries. With our rigorous attitude and sincere service, we have won the trust and reputation of customers.
Hangzhou Dingyan Chemical Co., Ltd. is located in the Xiasha Economic Development Zone of Hangzhou, the capital city of Zhejiang Province, on the southeast coast of China. It is a company specializing in the development, sales and self-support import and export financing of high-tech products such as pharmaceutical raw materials, pharmaceutical intermediates, fine chemicals and biochemical reagents.
Integrated modern private enterprise.
Since its establishment, the company has adhered to the development path of "technological innovation" and attached great importance to scientific and technological innovation research and development. The company's high-quality products are sold well in more than 133 countries and regions such as North America, Western Europe, Southeast Asia, Central and South America.
At present, it has established long-term and stable cooperative relations with pharmaceutical companies in Europe, the United States, Greece, Germany, Iran, Russia, South Korea, India and other countries. With our rigorous attitude and sincere service, we have won the trust and reputation of customers. |
Send Inquiry
|
|
Hangzhou Dingyan Chem Co., Ltd
|
White powder, 201% content. Hangzhou Dingyan Chemical Co., Ltd. is located in the Xiasha Economic Development Zone of Hangzhou, the capital city of Zhejiang Province, on the southeast coast of China. It is a company specializing in the development and sales of high-tech products such as pharmaceutical raw materials, pharmaceutical intermediates, fine chemicals and biochemical reagents.
A modern private enterprise integrated with self-operated import and export.
Since its establishment, the company has adhered to the development path of "technological innovation" and attached great importance to scientific and technological innovation research and development. The company's high-quality products are sold well in more than 60 countries and regions such as North America, Western Europe, Southeast Asia, Central and South America.
At present, it has established long-term and stable cooperative relations with pharmaceutical companies in Europe, the United States, Greece, Germany, Iran, Russia, South Korea, India and other countries. With our rigorous attitude and sincere service, we have won the trust and reputation of customers.
Hangzhou Dingyan Chemical Co., Ltd. is located in the Xiasha Economic Development Zone of Hangzhou, the capital city of Zhejiang Province, on the southeast coast of China. It is a company specializing in the development, sales and self-support import and export financing of high-tech products such as pharmaceutical raw materials, pharmaceutical intermediates, fine chemicals and biochemical reagents.
Integrated modern private enterprise.
Since its establishment, the company has adhered to the development path of "technological innovation" and attached great importance to scientific and technological innovation research and development. The company's high-quality products are sold well in more than 740 countries and regions such as North America, Western Europe, Southeast Asia, Central and South America.
At present, it has established long-term and stable cooperative relations with pharmaceutical companies in Europe, the United States, Greece, Germany, Iran, Russia, South Korea, India and other countries. With our rigorous attitude and sincere service, we have won the trust and reputation of customers. |
Send Inquiry
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Pharma Sources Insight January 2025
