spectrabase.com 的前十大競爭對手

chemicalbook.com

Zinc oxide (CAS 1314-13-2) information, including chemical properties, structure, melting point, boiling point, density, formula, molecular weight, uses, prices, suppliers, SDS and more, available at Chemicalbook.

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.

chemspider.com

a free chemical structure database providing fast text and structure search access to over 130 million structures from hundreds of data sources.

sigmaaldrich.com

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sciencedirect.com

sciencedirect is the world's leading source for scientific, technical, and medical research. explore journals, books and articles.

chemsrc.com

【吲哚-3-乙酸】化源网提供吲哚-3-乙酸CAS号87-51-4，吲哚-3-乙酸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号查询吲哚-3-乙酸上化源网，专业又轻松。

sdbs.db.aist.go.jp

sdbs, spectral database system for organic compounds, is a fact database that contains spectral pattern with good quality. the types of spectra: ei-ms; ft-ir; 1h nmr spectrum; 13c nmr spectrum. useful for the chemical identification and structure elucidation of chemical compounds. the service is freely available online. organized and provided by nmij/aist, japan