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CAS:73-32-5
Molecular Formula:C6H13NO2
Molecular Weight:131.17
EINECS:200-798-2
Synonyms:(2,3)-2-AMINO-3-METHYLPENTANOIC ACID; (2S,3S)-2-AMINO-3-METHYL-N-VALERIANIC ACID; (2S,3S)-2-AMINO-3-METHYLPENTANOIC ACID; (2S, 3S)-2-AMINO-3-METHYL-VALERIC ACID; (2S)-2-AMINO-3-METHYLPENTANOIC ACID; [2RS,3S]-2-AMINO-3-METHYLPENTANOIC ACID; (s-(r*,r*))-2-amino-3-methylpentanoicaci; (s-(r*,r*))-2-amino-3-methylpentanoicacid
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.
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Item
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Standard
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Result
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|
Appearance
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White crystals or crystalline powder
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Conforms
|
|
Assay/%
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98.5%~101%
|
99.6
|
|
Specific Rotation
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+38.9~+41.8°
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+40.5°
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|
Identification (Infrared Absorption)
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Corresponding to Reference Spectrum
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Conforms
|
|
Residue on Ignition/%
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≤0.30
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0.06
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|
Loss on Drying
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≤0.3
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0.07
|
|
Chloride (Cl)/%
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≤0.05
|
0.016
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Iron (Fe)/%
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≤0.0030
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0.0009
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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.
25kgs/drum, 9tons/20’containerPacking
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