N-Phenyl-1-naphthylamine CAS 90-30-2 is a colorless flaky crystal that turns light gray or brown when exposed to air or sunlight. N-Phenyl-1-naphthylamine is a commonly used antioxidant in natural ...
Polyethylenimine(PEI) is a water-soluble polymer. The concentration in water of commercial products is usually 20% to 50%. PEI is polymerized from ethylene imide monomer. It is a cationic polymer t...
CPHI & PMEC China is the leading pharmaceutical event in Asia, bringing together suppliers and buyers from the entire pharmaceutical supply chain. Global pharmaceutical experts gathered in Shan...
The annual “May Day” has quietly come.
In every corner of the motherland workers with both hands to interpret the responsibility, with the shoulder to support the responsibility, with c...
The Spring Festival of 2023 is coming. Thank you very much for your support and trust in Unilong in the past year. We will also strive to become better in the future. I hope to continue to reach a ...
With the progress of society and the improvement of people’s living standards, people pay more and more attention to the maintenance of their skin and their own image. The choice of cosmetics...
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