|
 |
| |
Product Description
INTRODUCTION
CAS NO.: 616-91-1
Molecular Formula: C5H9NO3S
Molecular Weight: 163.195
Dencity: 1.3¡À0.1 g/cm3
Boiling point: 407.7¡À40.0 ¡ãC at 760 mmHg
Melting point: 106-108 ¡ãC(lit.)
Flash(ing) point: 200.4¡À27.3 ¡ãC
EINECS NO.: 210-498-3
N-Acetyl-L-Cysteine (NAC) is a glutathione precursor derived from L-cysteine, long known for its antioxidant properties. NAC has a variety of clinical benefits, seen in cough, dry eyes, and influenza. It is also commonly used as an antidote for acetaminophen overdose and as a means to reduce nitrate tolerance.
SPECIFICATION
|
ITEM
|
SPECIFICATIONS
|
TEST RESULTS
|
|
Appearance
|
White crystals or crystalline powder
|
White crystalline powder
|
|
Assay, %
|
98.5~101.0
|
99.3
|
|
Identification
|
Infrared absorption
|
Conforms
|
|
pH value
|
2.0~2.8
|
2.21
|
|
Specific optical rotation[a]D20¡ã
|
+21¡ã~+27¡ã
|
+25.4¡ã
|
|
Melting point, ºC
|
106~110
|
107~109
|
|
Transmittance, %
|
¡Ý98.0%
|
98.9%
|
|
Loss on drying, %
|
¡Ü0.5
|
0.15
|
|
Residue on ignition, %
|
¡Ü0.2
|
0.09
|
|
Chloride, %
|
¡Ü0.04
|
<0.04
|
|
Sulfate, %
|
¡Ü0.03
|
<0.03
|
|
Ammonium, %
|
¡Ü0.02
|
<0.02
|
|
Heavy metals (as Pb), %
|
¡Ü0.001
|
<0.001
|
|
Iron (Fe), %
|
¡Ü0.002
|
<0.002
|
|
Other amino acids
|
Not detectable
|
Not detectable
|
|
| |
|
