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Chemexper Chemical Directory catalogue chemicals CASno Structure SMILES "ChemExper". Chemxpert Database Chemxpert Chemical Database small molecules database buyers,suppliers "ChemxpertDB". 10,00000 Chemical Book East West University: commercially available compounds CASno, suppliers, properties "Chemical Book". 200,000 Chemical Register
Methylidynephosphane (phosphaethyne) is a chemical compound which was the first phosphaalkyne compound discovered, containing the unusual C≡P carbon-phosphorus triple bond. Although isolated samples of methylidynephosphane are impractical, other derivatives have been well studied such as tert-butylphosphaacetylene.
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.
If a spectrum of an unknown chemical compound is available, a reverse search can be carried out by entering the values of the chemical shift, frequency or mass of the peaks in the NMR, FT-IR or EI-MS spectrum respectively. This type of search affords all the chemical compounds in the database that have the entered spectral characteristics. [6]
metar kttn 051853z 04011kt 1/2sm vcts sn fzfg bkn003 ovc010 m02/m02 a3006 rmk ao2 tsb40 slp176 p0002 t10171017= [10] METAR indicates that the following is a standard hourly observation. KTTN is the ICAO identifier for the Trenton-Mercer Airport .
NMVOC – non-methane volatile organic compounds; NNF – normally no flow; NNS – northern North Sea; NOISL – noise log; NOC – National Oil Company; NORM – naturally-occurring radioactive material; NP – non-producing well; NPD – Norwegian Petroleum Directorate; NPS – nominal pipe size (sometimes NS) NPSH(R) – net-positive ...
Methanesulfonyl chloride (mesyl chloride) is an organosulfur compound with the formula CH 3 SO 2 Cl. Using the organic pseudoelement symbol Ms for the methanesulfonyl (or mesyl) group CH 3 SO 2 –, it is frequently abbreviated MsCl in reaction schemes or equations. It is a colourless liquid that dissolves in polar organic solvents but is ...
Propylene tetramer being a broad term for a mixture of compounds formed by the oligomerization of propene, its use gave a mixture of highly branched structures. [4] Compared to traditional soaps, BAS offered superior tolerance to hard water and better foaming. [5] However, the highly branched tail made it difficult to biodegrade. [6]