L(+)-Alanine
crystalline powder
For further processing only.
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Will be supplied as "L(+)-Alanin". Unit of measure is "kg".
L(+)-Alanine material number and pack size: Material Number Pack Size 10136921103 custom fill - Substrate for alanine aminotransferase
- Use L(+)-Alanine in diagnostic tests for the determination of alanine aminotransferase (ALT).
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Formula: C3H7NO2
Molecular weight: 89.09 D Appearance: White, crystalline powder or crystals
Solubility: Easily soluble in water and mineral acids, insoluble in organic solvents
Appearance in buffer solution: Clear, colorless solution in phosphate buffer (c=0.9%, w/v, pH 7.4)
Microbiological test: Corresponds
Heavy metals (as Pb): ≤20 ppm ≙ 0.002%
Sulfate ash: ≤0.1%
Thin layer chromatography: Corresponds to reference
Water (K.Fischer): ≤1.0%
L-alanine (HClO4 titration, based on anhydrous substance): 98.5-100.5%
L-alanine (enzymatic, based on anhydrous substance): 97.0-105.0%
Stability: At +15 to +40°C within specification range for 36 months. Store dry in tightly closed containers.