Detail of "7298-99-9"

CAS Number:
7298-99-9
Name:
L-Aspartic acid,3-hydroxy-, (3S)-
Molecular Structure:
Formula:
C₄H₇NO₅
Molecular Weight:
149.10
Synonyms:
Asparticacid, 3-hydroxy-, L-threo- (8CI);L-Aspartic acid, 3-hydroxy-, threo-;(3S)-3-Hydroxyaspartic acid;L-threo-3-Hydroxyaspartic acid;L-threo-b-Hydroxyaspartic acid;NSC139979;threo-3-Hydroxy-L-aspartic acid;threo-b-Hydroxy-L-aspartic acid;
Density:
1.738 g/cm³
Boiling Point:
368.7 °C at 760 mmHg
Flash Point:
176.8 °C

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Fermentative production of L-threo-b-hydroxyaspartic acid: Fermentative production of L-threo-b-hydroxyaspartic acid. (Meiji Seika Kaisha, Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 59173089 A2 29 Sep 1984 Showa, 6 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C12P013-04. ICA: C12P013-20. ICI: C12P013-04, C12R001-465. APPLICATION: JP 83-47018 23 Mar 1983. DOCUMENT TYPE: Patent CA Section: 16 (Fermentation and Bioindustrial Chemistry) L-Threo-b-hydroxyaspartic acid (I) [7298-99-9] was prepd. by fermn. with Dactylosporangium. Thus, a seed culture of Dactylosporangium SF-2253 (FERM-P6858) was inoculated into 35 L medium (pH 7) contg. malt syrup 2, soybean oil 0.15, soybean flour 1, distillers' spent grain 0.25, cottonseed oil 0.5, CaCO3 0.1%, and traces of FeSO4, NiCl2, and CoCl2 and incubated at 28° for 5 days with stirring and aeration. The broth filtrate (40 L) was brought to pH 2 and passed through a silica gel column. I was adsorbed to Dowex 1′2(Cl-) and eluted with 0.2M NaCl and the eluate was concd., filtered, and chromatographed on Sephadex G-10 to yield 31.5 g crude I, which was purified by chromatog. on cellulose and recrystn. from EtOH.