73890-66-1

Basic information

• Product Name: L-Alanine, N-(1-carboxyethyl)- (9CI)
• Synonyms: L-Alanine, N-(1-carboxyethyl)- (9CI);N-(1-Carboxyethyl)-L-alanine;L-Alanine, N-(1-carboxyethyl)-
• CAS NO: 73890-66-1
• Molecular Formula: C₆H₁₁NO₄
• Molecular Weight: 161.15584
• Product Categories: GLYCINESCAFFOLD
• Mol File: 73890-66-1.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 341℃
• Flash Point: 160℃
• Appearance: /
• Density: 1.275
• PKA: 1.85±0.10(Predicted)
• CAS DataBase Reference: L-Alanine, N-(1-carboxyethyl)- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: L-Alanine, N-(1-carboxyethyl)- (9CI)(73890-66-1)
• EPA Substance Registry System: L-Alanine, N-(1-carboxyethyl)- (9CI)(73890-66-1)

Safety Data

• Hazardous Substances Data: 73890-66-1(Hazardous Substances Data)

Upstream product

• 81620-65-7 2-(1-carbamoylethylamino)propionic acid 
• 2869-25-2 2,2'-iminodipropionitrile 
• 917952-93-3 Dimethyl-2,4 aza-3 pentanedioate-1,5 d'ethyle 
• 598-72-1 2-Bromopropionic acid 
• 302-72-7 rac-Ala-OH 
• 598-78-7 (R,S)-2-chloropropionic acid 
• 7647-01-0 hydrogenchloride 
• 10345-32-1 (+/-)-trans-2,5-dimethyl-2,5-dihydro-pyrrole 
• 10028-15-6 ozone 
• 151-50-8 potassium cyanide 
• 75-07-0 acetaldehyde 

Relevant articles and documents

Tetrapyrrole aminocarboxylic acids

A fluorescent mono-, di-, or tri- or tetramide between an amino acid of the formula STR1 and a carboxy containing tetrapyrrole of the formula: STR2 or the corresponding di or tetrahydrotetrapyrroles. The compounds herein are useful for the photodetection and phototreatment of tumors and/or cancerous tissues in animal hosts.

Mass Spectra of Butyl Esters and N-Trifluoroacetyl Butyl Esters of Some Iminodicarboxylic Acids upon Electron Impact

Mass spectra (electron impact at 20 eV) of butyl esters and N-trifluoroacetyl (TFA) butyl esters of some iminodicarboxylic acids (IDCAs) were determined by gas chromatography-mass spectrometry.The IDCAs included iminodiacetic acid (1), 2-(carboxymethylamino)propionic acid (2), 3-(carboxymethylamino)propionic acid (3), 2,2'-iminodipropionic acid (4), 2,3'-iminodipropionic acid (5), 3,3'-iminodipropionic acid (6), N-methylaminodiacetic acid (7), and nitrilotriacetic acid (8).The mass spectra of the butyl ester derivatives are simple, exhibiting the corresponding molecular (M+) ions with the exception of 5.The α,α'-IDCAs (1, 2, 4, 7, and 8) are characterized by M+, M -101 (COOC4H9) (base peak), and M - 157 (COOC4H9 + C4H8) ions.The β,β'-IDCA (6) is characterized by a more complex spectrum with M+, M - 73 (OC4H9), M - 115 (CH2COOC4H9) (base peak), M - 129 (OC4H9 + C4H9), and M - 171 (CH2COOC4H9 + C4H9) ions.The α,β'-IDCAs (3 and 5) in general show spectra in which both ions characteristic of α,α'- and β,β'-IDCAs are observed.The addition of TFA to the imino nitrogens of 1 - 6 increases complexity of the resulting spectra.In these instances, although M+ ions are usually present, neither M - 101 nor 115 ions are base peaks.The fragmentation pathways of these two volatile derivatives of the IDCAs upon electron impact are discussed.

Preparation of DL-Alanine by the Reaction of (+/-)-2-Chloropropionic Acid with Aqueous Ammonia under Pressure

The effects of experimental conditions (molar ratio of reactans, concentration, temperature, and pressure) on the yield of DL-alanine produced by the reaction of (+/-)-2-chloropropionic acid with aqueous ammonia have been studied.Molar ratio of NH3 : CH3CHClCO2H (ca. 10:1 ) much lower than that reported in the literature (68:1) can give a comparable yield (ca. 78 percent) by the reaction under pressure at 70 deg C for 5 h, a much shorter time than that reported in literature (over 96 h).Addition of ammonium carbonate does not increase the yield against the literature.