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Aleuritic Acid
(Shellac Aleuritic Powder)
Aleuritic Acid (9, 10,
16-trihydroxypalmitic acid), obtained from shellac by
saponification, is a unique acid containing three hydroxyl
groups of which two are of adjacent carbon
atoms.
Aleuritic Acid is moderately soluble in hot
water and crystallises out on cooling the solution. It is
soluble in the lower alcohols such as methyl, ethyl and
isopropyl alcohols. |
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Techinal grade Aleuritic Acid (purity 99%)
a slight yellow and almost odourless solid, is now
manufactured by us. There is a continuous growing demand of
aleuritic acid in the fields of perfumery and pharmaceuticals due to it being an
excellent starting material for the synthesis of civetone, ambrettolide,
isoambrettolide etc, which have the musk like odour. |
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Civetone
Civetone is obtained from Shellac Aleuritic Acid, and is used
for manufacturing of Perfumes. Civetone is fast growing and is
very much in demand with perfume manufacturing companies such
as France, Italy, Germany, USA etc.
Physical
properties
White powder or granuals. Moderately
soluble in hot water and in lower alcohol such as methyl
alcohol, ethyl alcohol and isopropyl alcohol.
Chemical properties
Moisture 1% Acid value
Melting point 90 to 98 depending upon requirement Molecular
weight Specific gravity Chemical indentification 9,10,16
trihydroxy palmitic acid
Uses and Applications
Synthesis of fragrances such as civetone,
exaltone, ambrettolide and isoambrettolide. Synthesis of
glucose manoaleuritate. The other suggested applications of
aleuritic acid are the following:
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Glucose manoaleuritate (a
non-toxic non-hemolytic water-soluble compound) in medicine
as an isocaloric substitute for dietary tripalmitin.
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Preparation of plastics with good
adhesive properties by the condensation of aleurtic acid
with Pithalic andydride and glycerin, rosin etc.
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Aleuritic esters for compounding
with cellulose esters for the preparation of lacquers,
plastics and fibres.
Chemical Structure
Specification of Aleuritic
Acid
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Acid Value
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168-178
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Melting Point
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96±1șC
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Molecular Weight
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Approx 304
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Specific Gravity
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1.114
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Moisture
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1% max.
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Appearance
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White Powder
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Appearance in Alcohol
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Clear
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