Hot Sale N-Acetyl-L-Cysteine, CAS No 616-91-1

• Customization: Available
• CAS No.: 616-91-1
• Formula: C5h9no3s
• Model NO.: amino acid
• EINECS: 210-498-3
• Color: White
• Appearance: Powder
• Assay: 98.5~101.0%
• pH: 2.0~2.8
• Specific Optical Rotation[a]D20°: +21~+27
• Melting Point, ºC: 106~110
• Transmittance: Min 98.0%
• Loss on Drying: Max 0.5%
• Residue on Ignition: Max 0.2%
• Chloride: Max 0.04%
• Sulfate: Max 0.03%
• Heavy Metals (as Pb): Max 0.001%
• Transport Package: Drum/Carton
• Specification: 25kg/drum/carton
• Trademark: songwal
• Origin: China
• HS Code: 29309090
• Production Capacity: 100mt/Month

Product Description

INTRODUCTION
CAS NO.: 616-91-1
Molecular Formula: C5H9NO3S
Molecular Weight: 163.195
Dencity: 1.3±0.1 g/cm3
Boiling point: 407.7±40.0 °C at 760 mmHg
Melting point: 106-108 °C(lit.)
Flash(ing) point: 200.4±27.3 °C
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]D^20°	+21°~+27°	+25.4°
Melting point, ºC	106~110	107~109
Transmittance, %	≥98.0%	98.9%
Loss on drying, %	≤0.5	0.15
Residue on ignition, %	≤0.2	0.09
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
Other amino acids	Not detectable	Not detectable