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L-Isoleucine

L-Isoleucine
L-Isoleucine structure
CAS No.
73-32-5
Chemical Name:
L-Isoleucine
Synonyms
ILE;L-Ile;-IsoL;L-Ile-OH;H-lle-OH;H-ILE-OH;Isoleucin;Lsoleucine;H-L-ILE-OH;L-Isoieucine
CBNumber:
CB2678131
Molecular Formula:
C6H13NO2
Formula Weight:
131.17
MOL File:
73-32-5.mol

L-Isoleucine Properties

Melting point:
288 °C (dec.) (lit.)
Boiling point:
225.8±23.0 °C(Predicted)
alpha 
41 º (c=4, 6N HCl)
Density 
1.2930 (estimate)
FEMA 
4675 | L-ISOLEUCINE
refractive index 
40.5 ° (C=4, 6mol/L HCl)
Flash point:
168-170°C
storage temp. 
Store below +30°C.
solubility 
1 M HCl: 50 mg/mL
form 
powder
pka
2.32, 9.76(at 25℃)
color 
White to Off-white
PH
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)
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
Substances Added to Food (formerly EAFUS)
L-ISOLEUCINE
FDA 21 CFR
172.320
CAS DataBase Reference
73-32-5(CAS DataBase Reference)
NIST Chemistry Reference
Isoleucine(73-32-5)
EPA Substance Registry System
L-Isoleucine (73-32-5)
SAFETY
  • Risk and Safety Statements
Hazard Codes  Xn
Risk Statements  40
Safety Statements  24/25-36-22
WGK Germany  3
RTECS  NR4705000
TSCA  Yes
HS Code  29224995
Toxicity LD50 intraperitoneal in rat: 6822mg/kg

L-Isoleucine price More Price(40)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.16008 (S)-(+)-Isoleucine for synthesis 73-32-5 25 g $40.98 2021-03-22 Buy
Sigma-Aldrich 8.16008 (S)-(+)-Isoleucine for synthesis 73-32-5 10 g $28.12 2021-03-22 Buy
Sigma-Aldrich 56241 L-Isoleucine certified reference material, TraceCERT 73-32-5 100mg $101 2020-08-18 Buy
Sigma-Aldrich 1349502 L-Isoleucine United States Pharmacopeia (USP) Reference Standard 73-32-5 200mg $386 2021-03-22 Buy
Sigma-Aldrich 1.05357 L-Isoleucine EMPROVE? ESSENTIAL Ph Eur,USP 73-32-5 1000 $1290 2021-03-22 Buy

L-Isoleucine Chemical Properties,Uses,Production

Description

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.

Chemical Properties

White crystalline powder

Uses

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.

Definition

ChEBI: The L-enantiomer of isoleucine.

Purification Methods

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

Raw materials

Preparation Products


L-Isoleucine Suppliers

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View Lastest Price from L-Isoleucine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-12-03 L-Isoleucine
73-32-5
US $30.00 / KG 1KG 99.9% 1000kg/month Shanxi Lianxu New Material Co., LTD
2021-12-01 L-Isoleucine
73-32-5
US $18.00 / KG 1KG 99% 10000kg Hebei Crovell Biotech Co Ltd
2021-11-08 L-Isoleucine
73-32-5
US $10.00 / KG 1KG 99% 20 tons Wuhan wingroup Pharmaceutical Co., Ltd

L-Isoleucine Spectrum


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