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Product Description

Product Name: N-Acetyl-L-Cysteine Quantity: 500kgsBatch No: NA210328429
Product date: 2021.03.28Expiry date: 2023.03.27Pakage: 25kg/drum
AppearanceWhite crystals or crystalline powderWhite crystalline powder
Assay, %98.5~101.099.3
IdentificationInfrared absorptionConforms
pH value2.0~2.82.21
Specific optical rotation[a]D20°+21°~+27°+25.4°
Melting point, ºC106~110107~109
Transmittance, %98.0%98.9%
Loss on drying, % ≤0.50.15
Residue on ignition, % ≤0.20.09
Chloride, %≤0.04<0.04
Sulfate, %≤0.03<0.03
Ammonium, %≤0.02<0.02
Heavy metals (as Pb), % ≤0.001<0.001
Iron (Fe), %≤0.002<0.002
Arsenic (As2O3), %≤0.0001<0.0001
Other amino acidsNot detectableNot detectable
Conclusion: The test result of the above mentioned product meets standard.

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