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CAS No 62-57-7 , 2-amino-2-methylpropanoic acid

  • Name: 2-amino-2-methylpropanoic acid
  • Synonyms: alpha-Methylalanine; Alanine; 62-57-7;2-amino-2-methylpropanoic acid;2-Methylalanine; ALPHA-AMINOISOBUTYRIC ACID; 2-Amino-2-methylpropanoic acid; 2-methyl-;
  • CAS Registry Number:
  • Melting Point: 335 ºC
  • Density: 1.109 g/cm3
  • Refractive index: 1.464
  • Safety Statements: Moderately toxic by intraperitoneal route. When heated to decomposition it emits toxic fumes of NOx.
  • HS Code: 29224995
  • EINECS: 200-544-0
  • Molecular Weight: 103.11976
  • InchiKey: FUOOLUPWFVMBKG-UHFFFAOYSA-N
  • InChI: InChI=1S/C4H9NO2/c1-4(2,5)3(6)7/h5H2,1-2H3,(H,6,7)
  • Risk Statements: S22;S24/25
  • Molecular Formula: C4H9NO2
  • Molecular Structure:CAS No:62-57-7 2-amino-2-methylpropanoic acid

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62-57-7 2-Aminoisobutyric acid

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References of 2-amino-2-methylpropanoic acid
Title: a-Aminoisobutyric Acid
CAS Registry Number: 62-57-7
CAS Name: 2-Methylalanine
Synonyms: 2-aminoisobutyric acid; 2-amino-2-methylpropanoic acid
Molecular Formula: C4H9NO2
Molecular Weight: 103.12
Percent Composition: C 46.59%, H 8.80%, N 13.58%, O 31.03%
Line Formula: (CH3)2C(NH2)COOH
Literature References: Prepd by the treatment of acetone with hydrocyanic acid and then with alcoholic ammonia (Strecker synthesis): Tiemann, Friedl?nder, Ber. 14, 1970 (1881), see also p 1965; Marckwald et al., Ber. 24, 3283 (1891); Bailey, Randolph, Ber. 41, 2507 (1908); Clarke, Bean, Org. Synth. coll. vol. II, 29 (1943); or directly with ammonium cyanide: Gulewitsch, Ber. 33, 1900 (1900) or with a mixture of KCN and NH4Cl: Zelinsky, Stadnikow, Ber. 39, 1726 (1906); cf. Hellsing, Ber. 37, 1921 (1904); and subsequent hydrolysis of the nitrile formed. By heating dimethylhydantoin (obtained from acetone, hydrocyanic and cyanic acids) with concd HCl: Urech, Ann. 164, 268 (1872), cf. Heilpern, Monatsh. Chem. 17, 241 (1896).
Properties: Monoclinic prisms, tables, mp 335° (sealed capillary). Begins to sublime at 280°. Sweetish taste. Absorption spectrum: Ley, Arends, Ber. 61, 219 (1928); Abderhalden, Rossner, Z. Physiol. Chem. 176, 253 (1928). Freely sol in water. Difficultly sol in alcohol; insol in ether.
Melting point: mp 335° (sealed capillary)
 
Derivative Type: Hydrochloride
Molecular Formula: C4H9NO2.HCl
Molecular Weight: 139.58
Percent Composition: C 34.42%, H 7.22%, N 10.03%, O 22.93%, Cl 25.40%
Properties: Platelets from water, dec 236-237°. Readily sol in water, methanol, alcohol.