L-Aspartic acid

Reference: LAP-41C

L-Aspartic acid

L-Aspartic acid C₄H₇NO₄

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CAS# 56-84-8
Assay: > 99 %
Mol formula: C₄H₇NO₄
Mol weight: 133.11
Specific rotation (D20): +24.8 - +26.7 °
Transmittance (430 nm): > 95 %
pH (0.5%, H₂O): 2.5 - 3.5
Chlorides (Cl): < 200 mg/Kg
Sulphates (SO₄): < 300 mg/Kg
Ammonium (NH₄): < 200 mg/Kg
Iron (Fe): < 10 mg/Kg
Heavy metal (as Pb): < 10 mg/Kg
Arsenic (As): < 0.75 mg/Kg
Loss on drying: < 0.2 %
Residue on ignition: < 0.1 %
Storage: Room temperature
Stability: At least 2 years.

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