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Hangzhou Dingyan Chem Co., Ltd
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L-methionine, also known as l-methionine, is the l-handed version of methionine. Colorless or white luster flake crystal or white crystalline powder, slightly with a special smell, taste slightly bitter. Melting point 280 ~ 281℃. The instability of strong acids may lead to demethylation. Soluble in water (5.6g/100mL,30℃), lukewarm dilute ethanol, alkaline solution or dilute inorganic acid. It is insoluble in ethanol and almost insoluble in ether. Toxicity: LD50, 29mmol/kg (rats, intraperitoneal injection).
Appearance: white sheet crystal or powder
Purity: 99.93%
Package: 25 kg/drum
Content: ≥99.93%;
PH value :5.95(1% aqueous solution);
Dry weight loss: ≤0.05%;
Heavy metals (Pb) : ≤0.001%;
Light transmittance: ≥99.6%;
Burning residue: ≤0.04%;
Chloride (in Cl) : ≤0.02%;
Sulfate (SO4) : ≤0.02%;
Arsenic salt: ≤0.0001%;
Iron: 0.001% or less;
[NH4 +] : 0.02% or less;
Other amino acids: No detect
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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 1417 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. |
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Pharma Sources Insight June 2024: Globalization on the Go
