L-Leucine

CP2015

AJI92

USP24

USP34

USP40

Description

White crystals or crystalline powder

White crystals or crystalline powder

White crystalline powder

White crystalline powder

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Identification

Conforms

Conform

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Conform

Assay

≥98.5%

99.0%~100.5%

98.5%~101.5%

98.5%~101.5%

98.5%~101.5%

pH

5.5~6.5

5.5~6.5

5.5~7.0

5.5~7.0

5.5~7.0

Transmittance

≥98.0%

≥98.0%

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Loss on drying

≤0.2%

≤0.20%

≤0.20%

≤0.2%

≤0.2%

Residue on ignition

≤0.1%

≤0.10%

≤0.20%

≤0.4%

≤0.4%

Chloride

≤0.02%

≤0.020%

≤0.05%

≤0.05%

≤0.05%

Heavy Metals

≤0.001%

≤10ppm

≤15ppm

≤15ppm

≤15ppm

Iron

≤0.001%

≤10ppm

≤30ppm

≤30ppm

≤30ppm

Sulfate

≤0.02%

≤0.020%

≤0.03%

≤0.03%

≤0.03%

Endotoxin

＜25EU/g

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Arsenic

≤0.0001%

≤1ppm

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Ammonium

≤0.02%

≤0.02%

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Other amino acids

Conforms

Conforms

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≤0.5%

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Pyrogen

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Conforms

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Organic volatile impyrities

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Conforms

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Total plate count

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≤1000cfu/g

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Specific Rotation

+14.9°~+16.0°

+14.9°~+16.0°

+14.9°~+17.3°

+14.9°~+17.3°

+14.9°~+17.3°

Related compounds

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Conforms