LookChem: Bridging Innovation and Reliability

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https://www.lookchem.com/?utm_source=g


LookChem stands as a premier chemical B2B platform, offering three core competitive advantages. Firstly, our verified supplier network ensures 100% quality-guaranteed chemicals with complete documentation, eliminating procurement risks. Secondly, the intelligent search system integrates 50,000+ chemical products with real-time inventory updates, reducing sourcing time by 60%. Thirdly, our one-stop solution covers technical consultation, logistics coordination, and after-sales support, with multilingual specialists available 24/7.
Unlike conventional marketplaces, LookChem implements blockchain-powered transaction security and AI-driven matchmaking that connects buyers with ideal suppliers within 2 hours. Our platform has facilitated over 200,000 successful transactions globally, maintaining 99.3% customer satisfaction through rigorous quality control protocols. Particularly for pharmaceutical and specialty chemical buyers, we provide exclusive access to 5,000+ rare compounds with competitive MOQ policies.
With ISO-certified warehouses across major ports and strategic partnerships with 3,000+ manufacturers, LookChem transforms chemical procurement into a seamless, digital-first experience while upholding the highest safety standards.

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Reactions of the substituted tetramethylcyclopentadienes [C 5 HMe 4 R] [R?=? t Bu, Ph, CH 2 CH 2 C(CH 3 ) 3 ] with Mo(CO) 3 (CH 3 CN) 3 in refluxing xylene gave a series of dinuclear molybdenum carbonyl complexes [(η 5 -C 5 Me 4 R)Mo(CO) 3 ] 2 [R?=? t Bu (1), Ph (2), CH 2 CH 2 C(CH 3 ) 3 (3)], [(η 5 -C 5 Me t Bu)Mo(μ-CO) 2 ] 2 (4)], and [(η 5 -C 5 Me 4 ) t Bu] 2 Mo 2 O 4 (μ-O) (5)], respectively. Complexes 1–5 were characterized by elemental analysis, IR, 1 H NMR, and 13 C NMR spectroscopy. In addition, their crystal structures were determined by X-ray crystal diffraction analysis. The catalytic activities of complexes 1–3 in Friedel–Crafts acylation in the presence of o-chloranil has also been investigated; the reactions were achieved under mild conditions to give the corresponding products in moderate yields. https://www.lookchem.com/CASDataBase_1023-17-2.htm
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Competitive price of 1405-86-3 Top quality of Glycyrrhizic acid A exporter

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