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RTECS number: N/A: Chemical properties: XLogP: -2.912: ... ^a EINECS for L-alanine ^a CID 602 from PubChem ^a CID 5950 from PubChem This page was last edited on 12 ...
This is a list of articles that describe particular ... For substances with an l- or L- prefix such as L-alanine or DL-alanine, please see the parent page (in ...
In enzymology, a D-alanine—D-alanine ligase (EC 6.3.2.4) is an enzyme that catalyzes the chemical reaction. ATP + 2 D-alanine ADP + phosphate + D-alanyl-D-alanine. Thus, the two substrates of this enzyme are ATP and D-alanine, whereas its 3 products are ADP, phosphate, and D-alanyl-D-alanine.
They have been known to synthesize more than 10 kinds of D-amino acids, most frequently D-alanine and D-glutamate for crosslinking within the peptidoglycan cell wall. In addition, extracellular D -amino acids released from bacteria also control remodeling of the bacterial cell wall and are moreover, thought to function amongst bacteria to ...
The fact that an additive has an E number implies that its use was at one time permitted in products for sale in the European Single Market; some of these additives are no longer allowed today. Having a single unified list for food additives was first agreed upon in 1962 with food colouring. In 1964, the directives for preservatives were added ...
An additive that appears in the INS does not automatically have a corresponding E number. INS numbers are assigned by the committee to identify each food additive. INS numbers generally correspond to E numbers for the same compound, e.g. INS 102, Tartrazine, is also E102. INS numbers are not unique and, in fact, one number may be assigned to a ...
An obvious synthesis route to α-alaninediacetic acid is from racemic α-DL-alanine, which provides racemic α-ADA by double cyanomethylation with methanal and hydrogen cyanide, hydrolysis of the intermediately formed diacetonitrile to the trisodium salt and subsequent acidification with mineral acids in a 97.4% overall yield. [4]
Alanine was first synthesized in 1850 when Adolph Strecker combined acetaldehyde and ammonia with hydrogen cyanide. [8] [9] [10] The amino acid was named Alanin in German, in reference to aldehyde, with the interfix-an-for ease of pronunciation, [11] the German ending -in used in chemical compounds being analogous to English -ine.