L-Malic Acid L-(-)-Malic Acid 97-67-6

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Model No. :	97-67-6
Brand Name :	Volksky
CAS No. :	97-67-6
Other Names :	L-(-)-Malic Acid
MF :	C4H6O5
EINECS No. :	202-601-5
Brand Name :	Volksky
Application :	Intermediate
Appearance :	White Crystalline Powder
Storage :	Store Below +30°c.
Sample :	Avaliable
place of origin :	China
Types of :	Syntheses Material Intermediates
Purity :	99%

2yrs

Wuxi, Jiangsu, China

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Product description

ι-Malic acid is nearly odorless (sometimes a faint, acrid odor) with a tart, acidic taste. It is nonpungent. May be prepared by hydration of maleic acid; by fermentation from sugars.

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.

Application：

L-malic acid is used as an acidifier for refreshing beverages (such as lactic acid bacteria drinks, milk drinks, soft drinks, colas), frozen foods (such as fruit dew, ice cream, etc.), processed foods (such as fruit wine, mayonnaise), color retention agent for fruit drinks, preservatives, and emulsification stabilizer for egg yolks, etc.

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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