DL-leucine , 98% , 328-39-2

Synonym(s):
(±)-Amino-4-methylpentanoic acid;DL-2-Aminmo-4-methylvalerianic acid, DL-2-Aminmo-4-methylpentanoic acid;DL-Leucine

CAS NO.：328-39-2

Empirical Formula: C6H13NO2

Molecular Weight: 131.17

MDL number: MFCD00063087

EINECS: 206-328-2

PRODUCT Properties

• Melting point: 293-296 °C (subl.) (lit.)
• Boiling point: 225.8±23.0 °C(Predicted)
• alpha: [α]D20 -3.0～+3.0゜ (c=4, HCl)
• Density: 1,293 g/cm³
• refractive index: 1.4630 (estimate)
• storage temp.: Keep in dark place,Inert atmosphere,Room temperature
• solubility: 1 M HCl: soluble
• form: Fine Crystalline Powder
• pka: pKa: 9.744(25°C)
• color: White
• Odor: wh. sm. cryst. or cryst. powd., odorless, sl. bitter taste
• Water Solubility: soluble
• Merck: 14,5451
• BRN: 636005
• Stability: Stable. Incompatible with strong oxidizing agents.
• LogP: 0.799 (est)
• CAS DataBase Reference: 328-39-2(CAS DataBase Reference)
• NIST Chemistry Reference: DL-Leucine(328-39-2)
• EPA Substance Registry System: Leucine (328-39-2)

Description and Uses

DL-Leucine is a racemic mixture of the D- and L- enantiomers of Leucine. DL-Leucine is used to form benzimidazole and pyrimidine hydroxy azo dyes with various transition metals. DL-Leucine may be used for the evaluation of chiral amino acid separation techniques.

DL-Leucine is used for the following applications:

• Used as a standard for the measurement of free amino acids
• Used in the process of tritiated leucine uptake
• Used in solution preparation (various organics were used in different combinations and concentrations to model complex surface tension effects, DL-Leucine is one of them). It is chosen due to its presence in atmospheric aerosols and ice nucleation activity as well as for its surfactant character

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P305+P351+P338
• Hazard Codes: Xn
• Safety Statements: 22-24/25-36
• WGK Germany: 3
• TSCA: Yes
• HS Code: 29224995