85-2484-08　L-Malic acid 99+% 250g　CAS No:97-67-6　239335

特徴

• The naturally occuring isomer is the L-form which has been found in apples and many other fruits and plants. Selective α-amino protecting reagent for amino acid derivatives. Versatile synthon for the preparation of chiral compounds including κ-opioid receptor agonists, 1α,25-dihydroxyvitamin D3 analogue, and phoslactomycin B. Used to selectively protect the a-amino group of amino acids.It is the starting material for the preparation of chiral compounds.
• Synonyms:(2S)-2-Hydroxybutanedioic Acid; (-)-(S)-Malic Acid; (-)-Hydroxysuccinic Acid; (-)-L-Malic Acid; (-)-Malic Acid; (2S)-2-Hydroxybutanedioic Acid; (2S)-2-Hydroxy-succinic Acid; (2S)-Malic Acid; (S)-Malic Acid; Apple Acid; L-(-)-Malic Acid; L-Apple Acid; L-Malic Acid; NSC 9232; S-(-)-Malic Acid; S-2-Hydroxybutanedioic Acid
• Molecular Formula:C4H6O5
• Molecular Weight:134.09
• Appearance:White crystalline powder
• Purity:≥99% (Titration)
• Melting Point:101-103°C
• Heavy Metals:≤10mg/Kg (as Pb)
• Arsenic (As2O2):≤2mg/Kg
• Chloride (Cl-):≤0.004%
• Sulfate (SO42-):≤0.02%
• Fumaric Acid:≤0.5%
• Maleic Acid:≤0.05%
• Optical Rotation:[a]D20 = -1.6 to -2.6°
• Transmission:State of solution: To pass test
• Residue on Ignition:0.10%
• Storage:Store at RT.