L-Isoleucine Chemical Properties
- Melting point:
- 288 °C (dec.)(lit.)
- 41 º (c=4, 6N HCl)
- Boiling point:
- 225.8±23.0 °C(Predicted)
- 1.2930 (estimate)
- 4675 | L-ISOLEUCINE
- refractive index
- 40.5 ° (C=4, 6mol/L HCl)
- Flash point:
- storage temp.
- Store at RT.
- 1 M HCl: 50 mg/mL
- 2.32, 9.76(at 25℃)
- White to Off-white
- 5.5-6.5 (40g/l, H2O, 20℃)
- optical activity
- [α]20/D +41.0±1°, c = 5% in 6 M HCl
- Water Solubility
- 41.2 g/L (50 ºC)
- λ: 260 nm Amax: 0.07
λ: 280 nm Amax: 0.05
- 168-170 ºC
- JECFA Number
- CAS DataBase Reference
- 73-32-5(CAS DataBase Reference)
- NIST Chemistry Reference
- EPA Substance Registry System
- L-Isoleucine (73-32-5)
L-Isoleucine Usage And Synthesis
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.
White crystalline powder
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.
ChEBI: The L-enantiomer of isoleucine.
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-Isoleucine Preparation Products And Raw materials
- L-ISOLEUCINE AMIDE HYDROCHLORIDE
- 2-[(3-cyclopentylpropanoyl)amino]-4-methylpentanoic acid
- (2S,3S)-2-(benzoylamino)-3-methylpentanoic acid
- H-ARG-ILE-OH ACETATE SALT
- 13012111162 13012111162
- 13584088977 025-52168336
- 18613662662 18613662662