L-Malic acid 99+%

RT

134, 09

White crystalline powder

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

CAS No:
97-67-6

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.