chemspider.com 的前十大競爭對手

pubchem.ncbi.nlm.nih.gov

PubChem is the world's largest collection of freely accessible chemical information. Search chemicals by name, molecular formula, structure, and other identifiers. Find chemical and physical properties, biological activities, safety and toxicity information, patents, literature citations and more.

sigmaaldrich.com

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chemicalbook.com

Chemicalbook is a platform dedicated to provide the most valuable resources for chemical industry users. Here you can get chemical information (such as chemical physical properties, safety data, Excellent china suppliers and their web addresses and etc.)by searching the name, CAS number, molecular formula, molecular weight, MDL number, EINECS number, structure.

scbt.com

Santa Cruz Biotechnology Support Products includes a broad range of lysates, proteins, purification reagents, and more for research applications.

tcichemicals.com

tci is a global manufacturer of chemicals for research and development, with reagents for chemistry, life science, materials science, and analytical chemistry.

molport.com

What are the changes with new Molport web experience - frequently asked questions answered- Molport blog

chemsrc.com

【L-精氨酸】化源网提供L-精氨酸CAS号74-79-3，L-精氨酸MSDS及其说明、性质、英文名、生产厂家、作用/用途、分子量、密度、沸点、熔点、结构式等。CAS号查询L-精氨酸上化源网，专业又轻松。

bldpharm.com

bldpharm provides a catalog over 600,000+ products, including building blocks, advanced intermediates, amino acids and peptides, catalysts and ligands, natural products, nucleotides, etc. over 1,000 novel chemicals are continually added into bld's product list on a monthly basis.