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CAS:73-32-5
Purity:99%
Appearance:White Crystalline Powder, White Crystalline Powder
Product Name:Food grade amino acid l isoleucin CAS 73-32-5 l-isoleucine
Other name:l-isoleucine
What is of L-Isoleucine with cas 73-32-5?
Crystalline leaflets or a white, crystalline powder having a bitter taste. It is soluble in 25 parts of water, slightly soluble in hot alcohol, and soluble in diluted mineral acids and in alkaline solutions. It sublimes at between 168°C and 170°C, and melts with decomposition at about 284°C. The pH of a 1 in 100 solution is between 5.5 and 7.0.
Absolute: The absolute is prepared by alcoholic extraction of the concrete in approximately 55 to 60% yields. The absolute consists of a semisolid, olive-green mass with a characteristic ambergris odor.
Specification
|
Item
|
Standard
|
Result
|
|
Appearance
|
White crystals or crystalline powder
|
Conforms
|
|
Assay/%
|
98.5%~101%
|
99.6
|
|
Specific Rotation
|
+38.9~+41.8°
|
+40.5°
|
|
Identification (Infrared Absorption)
|
Corresponding to Reference Spectrum
|
Conforms
|
|
Residue on Ignition/%
|
≤0.30
|
0.06
|
|
Loss on Drying
|
≤0.3
|
0.07
|
|
Chloride (Cl)/%
|
≤0.05
|
0.016
|
|
Iron (Fe)/%
|
≤0.0030
|
0.0009
|
Usage
L-Isoleucine may be used as a pharmaceutical reference standard for the quantification of the analyte in pharmaceutical formulations using high-performance liquid chromatography technique.
Packing
25kgs/drum, 9tons/20’containerPacking
