Here are some well-known chemical wholesalers and suppliers:

1. MOLBASE: MOLBASE is a platform that covers a wide range of chemical products, including laboratory chemicals, fine chemicals, and commodity chemicals. It has a comprehensive database with over 45 million compounds.

2. State Chemical: Located in Nanjing, Jiangsu Province, State Chemical is an international chemical market supplier specializing in basic chemical raw materials, particularly water treatment chemicals, with an extensive international market sales network and stable product supply channels.

3. Top Chemical Co., Ltd: Established in 2014, Top Chemical focuses on the import and export business of raw materials such as polyurethane, adhesives, coatings, and composite materials, with customers in over 40 countries and regions worldwide.

4. Sinochem Commerce: Provides supply chain services, including centralized procurement, trade consulting, import and export agency, and equipment integration.

5. Nanjing Danpei Chemical Co., Ltd: Specializes in the import and sales of chemical products, cooperating with many well-known domestic and foreign companies to provide products for various industries.

6. The Chemical Company: As a global chemical supplier and distributor, it offers chemicals such as solvents and intermediates, serving customers worldwide.

7. ChemAnalyst: Offers market analysis, price trends, and forecasting tools to help users make informed decisions and maintain competitiveness.

8. Chemical Suppliers in China: Provides a comprehensive list of chemical suppliers in China, including manufacturers, distributors, wholesalers, traders, and brokers.

9. Reformchem: Nantong Reform Petrochemical Co., Ltd., established in 2008, is a chemical product manufacturer and supplier with an annual sales volume of over 1 billion RMB.

These chemical wholesalers offer a broad range of chemical products and services. You can contact chemical wholesalers for more information and quotations based on your specific needs.