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This is a list of CAS numbers by chemical formulas and chemical compounds, indexed by formula.The CAS number is a unique number applied to a specific chemical by the Chemical Abstracts Service (CAS).This list complements alternative listings to be found at list of inorganic compounds and glossary of chemical formulae
List of chemical elements. 118 chemical elements have been identified and named officially by IUPAC. A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z ). [1]
This is a list of common chemical compounds with chemical formulae and CAS numbers, indexed by formula. This complements alternative listing at list of inorganic compounds. There is no complete list of chemical compounds since by nature the list would be infinite.
C 8 H 8, the name derives from the resemblance to a barrel. [6] Basketane. Basketane. pentacyclo [4.4.0.0 2,5 .0 3,8 .0 4,7 ]decane (C 10 H 12 ), a polycyclic alkane with a structure similar to a basket. [3] Bowtiediene. Bowtiediene. Spiropentadiene, a polycyclic alkene with a 2D projection similar to a bowtie.
Boiling point. In the following table, the use row is the value recommended for use in other Wikipedia pages in order to maintain consistency across content. Reference. Kelvin. Celsius. Fahrenheit. 1 H hydrogen (H 2 ) use. 20.271 K.
According to ASHRAE standard 34, the R-number of a chemical refrigerant is assigned systematically according to its molecular structure and has between two and four digits. If there are carbon-carbon multiple bonds, there are four digits in all: the number of these bonds is the first digit and the number of carbon atoms minus one (C-1) is next ...
A chemical formula specifies the number of atoms of each element in a compound molecule, using the standard chemical symbols with numerical subscripts. Many chemical compounds have a unique CAS number identifier assigned by the Chemical Abstracts Service. Globally, more than 350,000 chemical compounds (including mixtures of chemicals) have been ...
Inorganic compounds by element. List of alloys. List of alkanes. List of elements by name. List of minerals – List of minerals with Wikipedia articles. List of alchemical substances. Polyatomic ion – Ion containing two or more atoms. Exotic molecules – Atoms composed of exotic particles can form compounds.