When you conduct a search using text, just tell us what you need.
References
References by Author
Query Examples:
- smith, john
- john smith on MEIS1 gene
References by Journal
Query Example: documents published in jacs
References by Document Type
Query Example: patents about waterborne coating
Substances and Their Properties
Search for a substance by property or a substance's physical, experimental, and predicted properties using simple keywords, with or without Boolean operators, and natural language.
Example queries:
- amines with boiling point <100
- what is the glass transition point of PMMA
- boiling point of 79094
- benoxaprofen median lethal dose
- ketones with H acceptors >2
- acids with pKa <0.5
Property Range
Search for substances using a value or range of values for a single property.
- Acceptable values:
- A particular value (e.g., 53, fifty three)
- A bounded range of values using symbols or description (e.g., 53-72, between 53 and 75)
- An unbounded range of values using symbols or description (e.g., >53, <53, >=53, <=53, greater than 53)
- Positive, negative, and decimal values (53, -53, 53.1)
- Values in scientific notation (1.218E-4, 1.218e-4, 1.218x10^-4)
- You can provide units or not:
- If you provide units, the system identifies them as units and includes them in the output.
- If you not provide units, the system will not output units. Note: The percent sign (%) is considered a unit.
- You can specify that you are searching for substances within a single particular substance group or functional group.
Query Examples:
- materials with young's modulus between 10-100
- substances that self-ignite over 70 F
- compounds with melting point between 114.6-115.5 degrees C
Spectra Data
Query Examples:
- ibuprofen carbon nmr
- spectra of benzene
- 51234-28-7 spectra
- Visible Absorption Spectrum of CH2Cl2
Hazard, Safety, and Regulatory Information
GHS Hazard Tables and Regulatory Lists
CAS SciFinder now supports the display of GHS hazard tables and regulatory lists right on the results page.
Query Examples:
- GHS data for toluene
- where can I find the regulation information on sulfur dioxide
- how hazardous is the chemical nitrogen dioxide
- safety regulations for chlorine
Pricing Information
Price of a Substance
Search for the price of a substance by name, registry number, or molecular formula using natural language.
Query Examples:
- benzene cost
- cost of 51234-28-7
- price of benzene
- how much does benzene cost
- how much does NH3 cost
Suppliers of a Given Substance
Search for suppliers of a specified substance using natural language and traditional keywords.
Query Examples:
- who sells acetone
- where to buy triostin a
- source for 1,2,4-trimethylbenzene
- suppliers of ergine
- online vendors for cyrene
Supplier Name Searching
Search for a specific supplier's name to find commercially available substances. You must use the supplier's exact, full name.
Reactions
Search for a reaction using natural language phrasing.
Query Examples:
- Water as a solvent for synthesis of toluene
- What can I synthesize with Fmoc-Gly-OH and iron catalyst?
- Chromium dichloride catalyzed Nozaki-Hiyama-Kishi reactions
Reaction Procedure Searching
Search for procedures/synthetic methods for a given reaction using natural language or CAS reaction number.
Query Examples:
- how to synthesize benzenamine, 3-methoxy- with copper catalyst
- protocols to make toluene catalyzed by copper
- how to make ibuprofen
- suzuki coupling procedures
Reactions by Yield
Search for reactions with specific yields or yield ranges through natural language.
Query Examples:
- synthesis of ibuprofen with 80-86% yield with pdcl2 catalyst
- Water as a solvent for synthesis of toluene with high yield
- Michael addition yield = 80