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L-Isoleucin

L-Isoleucine Struktur
73-32-5
CAS-Nr.
73-32-5
Bezeichnung:
L-Isoleucin
Englisch Name:
L-Isoleucine
Synonyma:
ILE;H-ILE-OH;L-Ile;L-lsoleucine;(2S,3S)-2-AMINO-3-METHYLPENTANOIC ACID;L-Ile-OH;(2S)-2-AMINO-3-METHYLPENTANOIC ACID;H-lle-OH;Isoleucin;Lsoleucine
CBNumber:
CB2678131
Summenformel:
C6H13NO2
Molgewicht:
131.17
MOL-Datei:
73-32-5.mol

L-Isoleucin Eigenschaften

Schmelzpunkt:
288 °C (dec.) (lit.)
Siedepunkt:
225.8±23.0 °C(Predicted)
alpha 
41 º (c=4, 6N HCl)
Dichte
1.2930 (estimate)
FEMA 
4675 | L-ISOLEUCINE
Brechungsindex
40.5 ° (C=4, 6mol/L HCl)
Flammpunkt:
168-170°C
storage temp. 
Store below +30°C.
L?slichkeit
1 M HCl: 50 mg/mL
Aggregatzustand
powder
pka
2.32, 9.76(at 25℃)
Farbe
White to Off-white
Geruch (Odor)
odorless
PH
5.5-6.5 (40g/l, H2O, 20℃)
Optische Aktivit?t
[α]20/D +41.0±1°, c = 5% in 6 M HCl
Wasserl?slichkeit
41.2 g/L (50 ºC)
maximale Wellenl?nge (λmax)
λ: 260 nm Amax: 0.07
λ: 280 nm Amax: 0.05
JECFA Number
2118
Merck 
14,5179
Sublimation 
168-170 ºC
BRN 
1721792
InChIKey
AGPKZVBTJJNPAG-WHFBIAKZSA-N
LogP
0.80
CAS Datenbank
73-32-5(CAS DataBase Reference)
NIST chemische Informationen
Isoleucine(73-32-5)
EPA chemische Informationen
L-Isoleucine (73-32-5)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn
R-S?tze: 40
S-S?tze: 24/25-36-22
WGK Germany  3
RTECS-Nr. NR4705000
TSCA  Yes
HS Code  29224995
Giftige Stoffe Daten 73-32-5(Hazardous Substances Data)
Toxizit?t LD50 intraperitoneal in rat: 6822mg/kg
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizit?t (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" />
Sicherheit
P261 Einatmen von Staub vermeiden.
P271 Nur im Freien oder in gut belüfteten R?umen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.

L-Isoleucin Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R40:Verdacht auf krebserzeugende Wirkung.

S-S?tze Betriebsanweisung:

S24/25:Berührung mit den Augen und der Haut vermeiden.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S22:Staub nicht einatmen.

Beschreibung

Crystalline leaflets or a white, crystalline powder having a bitter taste. It is soluble in 25 parts of water, slightly soluble in hot alcohol, and soluble in diluted mineral acids and in alkaline solutions. It sublimes at between 168°C and 170°C, and melts with decomposition at about 284°C. The pH of a 1 in 100 solution is between 5.5 and 7.0.
Absolute: The absolute is prepared by alcoholic extraction of the concrete in approximately 55 to 60% yields. The absolute consists of a semisolid, olive-green mass with a characteristic ambergris odor.
Resinoid and Resin Absolute: The resinoid consists of the hydro carbon extract of the crude resin. The resin absolute consists of the alcoholic extract of the crude labdanum resin. Since this prod uct is a semisolid, nonpourable mass, a high-boiling, odorless solvent may be added prior to evaporation of the alcohol to prepare a pourable liquid.

Chemische Eigenschaften

White crystalline powder

Verwenden

L-Isoleucine, also known as Isoleucine, is an amino acid that is an isomer of leucine. It is important in hemoglobin synthesis and regulation of blood sugar and energy levels.
L-Isoleucine is one of the essential amino acids that cannot be made by the body and is known for its ability to help endurance and assist in the repair and rebuilding of muscle. This amino acid is important to body builders as it helps boost energy and helps the body recover from training.
L-Isoleucine is also classified as a branched-chain amino acid (BCAA). There are three branched-chain amino acids in the body, with the others being L-Valine, and L-Leucine, and all of them help promote muscle recovery after exercise. Isoleucine is actually broken down for energy within the muscle tissue.

Vorbereitung Methode

An advantageous fermentation method for production of L-isoleucine is the use of chemically synthesized substrates that only require a few steps to be converted to L-isoleucine. Among these the natural precursors 2-ketobutyrate or D,L-2-hydroxybutyrate have been used for the production with Corynebacterium glutamicum. A leucine requiring mutant of Corynebacterium glutamicum, with increased D-lactate utilization and consuming D,L-2-hydroxybutyrate, accumulates 13.4 g/L L-isoleucine. However, exploitation of this process is hampered by formation of byproducts. Sugar based L-isoleucine processes have been developed with strains of Corynebacterium glutamicum Serratia marcescens, and Escherichia coli. The mutant Escherichia coli H- 8285, being resistant to thiaisoleucine, arginine hydroxamate, and D,L-ethionine accumulates 26 g/L L-isoleucine in 45 h in a fed-batch process. Introduction of resistance to 6-dimethylaminopurine in strain H-8285 resulted in a mutant Escherichia coli H-8461 that increased L-isoleucine accumulation to 30.2 g/L. The biosynthesis of L-isoleucine has been investigated in detail on the level of involved genes, thus recombinant strains are being constructed with high productivity and selectivity. An appropriate balance of homoserine dehydrogenase and threonine dehydratase activities in the construct Corynebacterium glutamicum DR17/pECM3::ilvA (V323A) with feedback-resistant aspartate kinase create a specific productivity of 0.052 g L-isoleucine per gram dry biomass per hour. The recombinant strain Escherichia coli AJ13100 produces L-isoleucine from glucose with high selectivity in 30% yield.

Definition

ChEBI: The L-enantiomer of isoleucine.

Nebenwirkungen

L-Isoleucine is generally considered a safe ingredient. The side effects may: Intake of Isoleucine can lead to nausea. Large doses can result in a stomach upset and indigestion.

l?uterung methode

Crystallise L-isoleucine from H2O by addition of 4 volumes of EtOH or from aqueous MeOH. It sublimes at 170-181o/0.3mm with 99.7% recovery, unracemised [Gross & Gradsky J Am Chem Soc 77 1678 1955]. [Greenstein & Winitz The Chemistry of the Amino Acids J. Wiley, Vol 1 p 183-191, Vol 3 pp 2043-2073 1961, Huffman & Ingersoll J Am Chem Soc 73 3366 1951, Beilstein 4 IV 2775.]

L-Isoleucin Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


L-Isoleucin Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 1055)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8806 58
Hebei Mujin Biotechnology Co.,Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12832 58
Hebei Yanxi Chemical Co., Ltd.
+8617531153977
allison@yan-xi.com China 5857 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5889 58
Hebei Weibang Biotechnology Co., Ltd
+8617732866630
bess@weibangbio.com China 18148 58
Wuhan Han Sheng New Material Technology Co.,Ltd
+8617798174412
admin01@hsnm.com.cn China 2097 58
Hebei Kingfiner Technology Development Co.Ltd
+86-15532196582 +86-15373005021
lisa@kingfinertech.com China 3007 58
Shaanxi Haibo Biotechnology Co., Ltd
+undefined18602966907
qinhe02@xaltbio.com China 997 58
Sichuan HongRi Pharma-Tech Co.,Ltd
+86-028-64841719 +8617390183901
daisy@enlaibio.com China 1106 58
Across Biotech Jinan Co LTD
+8613031735486
frank@acrossbiotech.com China 105 58

73-32-5(L-Isoleucin)Verwandte Suche:


  • (2s,3s)-alpha-amino-beta-merthylvalericacid
  • (2s,3s)-alpha-amino-beta-methyl-n-valericacid
  • L-(+)-Isoleucine, Animal-Free
  • L-IsoleucineUSP, 98.5-101.5% (Titration: anhydrous basis)
  • L-Isoleucine,99%e.e.
  • L-ISOLEUCINE BIOULTRA, >= 99.5% (NT)
  • L-ISOLEUCINE, REAGENT GRADE, >=98% (
  • L-isoleucine FCC4/USP24
  • L-ISOLEUCINE (USP/EP/JP)
  • L-ISOLEUCINE, 99% (99% EE/GLC)
  • L-Isoleucine USP
  • L-IsoleucineForBiochemistry
  • L-IsoleucineForBiochemistry99+%
  • L-IsoleucineForBiochemistry-(2S,3S)-2-Amino-3-MethylpentanoicAcid)
  • L-Isoleucine-UL-13C6
  • L-ISOLEUCINE,CRYSTAL
  • L-ISOLEUCINE,FCC
  • alpha-amino-beta-merthylvaleric acid
  • L-ISOLEUCINE >99.5%
  • L-ISOLEUCINE NATURAL
  • L-ISOLEUCINE extrapure CHR
  • 2-amine-3-methylpen-oic acid
  • L-α-amino-β-methylvaleric acid
  • L-ISOLEUCINE: D-ALLO-ISOLEUCINE
  • L(+)-ISOLEUCINE
  • L-ISOLEUCINE
  • L-Isoleucine,99%
  • (2,3)-2-AMINO-3-METHYLPENTANOIC ACID
  • (2S,3S)-2-AMINO-3-METHYL-N-VALERIANIC ACID
  • (2S, 3S)-2-AMINO-3-METHYL-VALERIC ACID
  • [2RS,3S]-2-AMINO-3-METHYLPENTANOIC ACID
  • (s-(r*,r*))-2-amino-3-methylpentanoicaci
  • (s-(r*,r*))-2-amino-3-methylpentanoicacid
  • (S,S)-2-amino-3-methyl-pentanoicacid
  • (s,s)-isoleucine
  • [S-(R*,R*)]-2-Amino-3-methylpentanoic acid
  • 2-amino-3-methyl-,(s-(r*,r))-pentanoicaci
  • 2-Amino-3-methylvaleric acid
  • 2-amino-3-methyl-valericaci
  • 2-amino-3-methylvalericacid
  • 2s,3s-isoleucine
  • Acetic acid, amino(1-methylpropyl)-, (R*,R*)-
  • Acetic acid, amino-sec-butyl-
  • alpha-Amino-beta-methylvaleric acid
  • alpha-amino-beta-methylvalericacid
  • amino-sec-butyl-aceticaci
  • Erythro-L-Isoleucine
  • erythro-l-norvalin
  • L(+)-Isoleucin
  • Norvaline, 3-methyl-
  • Norvaline, 3-methyl-, erythro-
  • Pentanoic acid, 2-amino-3-methyl-
  • Pentanoic acid, 2-amino-3-methyl-, [S-(R*,R*)]-
  • sec-C4H9CH(NH2)COOH
  • Valeric acid, 2-amino-3-methyl-
  • (S)-(+)-ISOLEUCINE
  • RARECHEM AB PP 0955
  • H-L-ILE-OH
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