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N-乙酰-L-半胱氨酸
產品詳細介紹

N-Acetyl-L-Cysteine

CAS NO:616-91-1

Chemical Name

N-Acetyl-L-Cysteine

Molecular Structure


Molecular Formula

C5H9NO3S

Molecular Weight

163.19

Cas No

[616-91-1]

Characteristics

White crystals or crystalline powder , strongly acid taste

 


AJI92

USP24

FCC4

Appearance

White crystals or crystalline powder

White crystals or crystalline powder


Assay

98.5~101.0%

98.5~101.0%


PH

2.0~2.8

2.0~2.8


Specific rotation[a]D20°

+5.5°~+7.0°

+5.5°~+7.0°


State of solution

≥98.0%



Chloride(Cl)

≤0.04%



Ammonium(NH 4 )

≤0.02%



Iron(Fe)

≤20PPm



Heavy metals(Pb)

≤10PPm

≤10PPm


Arsenic(As2O3)

≤1PPm



Other amino acids

Conforms



Loss on drying

≤0.5%

≤1%


Residue on ignition

≤0.20%

≤0.5%


Melting point

106~110°



Organic volatile impurities


Meet the requirements


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