**L-Isoleucine – A Comprehensive Overview**
**Chemical Name:** L-Isoleucine
**Systematic Name:** (2S, 3S)-2-Amino-3-methylpentanoic acid
**Alternative Names:** L-α-Amino-β-methylvaleric acid, L-2-Amino-3-methylpentanoic acid, L-2-Amino-3-methylvaleric acid, L-isoflash white amino acid
**CAS Number:** 73-32-5
**Molecular Formula:** C₆Hâ‚₃NOâ‚‚
**Molecular Weight:** 131.18 g/mol
**Purity Grade:** Biochemical Reagent (BR)
**Minimum Purity:** ≥99.0%
**Specific Optical Rotation:** +39.5° to +41.5°
**Loss on Drying:** ≤0.2%
**Heavy Metals (as Pb):** ≤10 ppm
**Chloride (as Clâ»):** ≤0.02%
**Sulfate (as SO₄²â»):** ≤0.03%
**Ammonium Salt (as NHâ‚„âº):** ≤0.02%
**Arsenic (as As):** ≤1 ppm
**Iron (as Fe):** ≤10 ppm
**Physical Properties:**
- **Appearance:** White crystalline powder or crystals
- **Taste:** Bitter
- **Sublimation Point:** 168–170°C
- **Decomposition Temperature:** 284°C
- **Solubility in Water:** 41.2 g/L at 25°C
- **Solubility in Ethanol (hot):** Slightly soluble (w/w)
- **Solubility in Ether:** Insoluble
- **Solubility in Hot Ether:** Slightly soluble
**Applications:**
L-Isoleucine is widely used in biochemical research, microbiological studies, and tissue culture preservation. It serves as an essential amino acid in protein synthesis and is commonly utilized in the formulation of cell culture media and nutritional supplements.
**Storage Conditions:**
Store in a cool, dry place, away from direct sunlight. Recommended storage temperature: Room Temperature (RT).
**Safety Note:**
Handle with care. Avoid contact with skin and eyes. Use appropriate personal protective equipment when working with this compound.
This high-purity L-Isoleucine is ideal for laboratory use, offering consistent quality and reliable performance in various scientific applications. Whether for research or industrial purposes, it remains a key component in many biochemical processes.
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