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L-(-)-Malic acid is used as a food additive, 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.
Melting point
101-103 °C (lit.)
alpha
-2 º (c=8.5, H2O)
Boiling point
167.16°C (rough estimate)
density
1.60
FEMA
2655 | L-MALIC ACID
refractive index
-6.5 ° (C=10, Acetone)
Fp
220 °C
storage temp.
Store below +30°C.
solubility
H2O: 0.5 M at 20 °C, clear, colorless
form
Powder
color
White
Specific Gravity
1.595 (20/4℃)
PH
2.2 (10g/l, H2O, 20℃)
pka
(1) 3.46, (2) 5.10(at 25℃)
optical activity
[α]20/D 30±2°, c = 5.5% in pyridine
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