L-Isoleucine , 99% , 73-32-5
Synonym(s):
(2S,3S)-2-Amino-3-methylpentanoic acid;(S)-(+)-Isoleucine;iso-Leucine, Ile;L-Isoleucine
CAS NO.：73-32-5
Empirical Formula: C6H13NO2
Molecular Weight: 131.17
MDL number: MFCD00064222
EINECS: 200-798-2
| Pack Size | Price | Stock | Quantity |
| 25G | RMB40.00 | In Stock |
|
| 50g | RMB59.20 | In Stock |
|
| 100G | RMB83.20 | In Stock |
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| 250g | RMB230.40 | In Stock |
|
| 500G | RMB262.40 | In Stock |
|
| 1kg | RMB680.80 | In Stock |
|
| 2.5kg | RMB1173.60 | In Stock |
|
| others | Enquire |
PRODUCT 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 |
| Odor | odorless |
| 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 |
| LogP | 0.80 |
| 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) |
Description and Uses
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.
L-Isoleucine may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using high-performance liquid chromatography technique.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P280-P261-P271 |
| Hazard Codes | Xn |
| Risk Statements | 40 |
| Safety Statements | 24/25-36-22 |
| WGK Germany | 3 |
| RTECS | NR4705000 |
| TSCA | Yes |
| HS Code | 29224995 |
| Hazardous Substances Data | 73-32-5(Hazardous Substances Data) |
| Toxicity | LD50 intraperitoneal in rat: 6822mg/kg |
