|
Hangzhou Dingyan Chem Co., Ltd
|
[appearance]
White or slightly yellowish crystalline or crystalline powder, odorless, sour. Melting point 190 ~ 192℃, rotatory alpha D20=+21° ~ +22°. Soluble in water, soluble in ethanol, insoluble in chloroform, ether and benzene. The Ph value of 5% aqueous solution was 2.2 ~ 2.5. In dry air is relatively stable, its aqueous solution is unstable, especially in neutral or alkaline solution is quickly oxidized, light, heat and copper, iron and other metal ions will accelerate the oxidation. The ADI value of rat transoral LD505g/kg was not specified (FAO/WHO, 1994).
"Melting point"
190-194 ° C (dec)
Specific rotation
20.5 DHS (c = 10, H2O)
"Density"
,65 1 g/cm3
【 FEMA 】
2109
Refractive index
21 ° (C = 10, H2O)
Storage conditions
0 to 6 ° C
[solubility]
H2O: 50 mg/mL at 20 °C, clear, nearly colorless
[form]
powder
【 color 】
White to slightly yellow
[water solubility]
333 g/L (20 DHS C)
|
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 64 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 912 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
|
Pharma Sources Insight June 2024: Globalization on the Go
