N-Acetyl-L-cysteine

CAS Number: 616-91-1
Chemical Formula: C5H9NO3S
Synonyms:
N-Acetyl-L-cysteine
Acetylcysteine
L-Acetylcysteine
NAC
Appearance: White Crystalline Powder
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

Product Details
N-Acetyl-L-cysteine is a modified amino acid derived from L-cysteine and maleic-anhydride.html">material/acetic-acid.html">acetic acid. It features strong antioxidant properties and serves as a precursor for glutathione.html">glutathione synthesis. It is widely used in pharmaceuticals, dietary supplements, cosmetics, and healthcare products. In medical applications, it acts as a mucolytic agent to thin respiratory mucus and is used as an antidote for acetaminophen overdose. It also supports liver protection, immune function, and anti-aging processes. Its ability to chelate heavy metals makes it useful in detoxification formulations. In the food and beverage industry, it is used as a nutritional fortifier and flavor enhancer. In cosmetics, it provides moisturizing, brightening, and anti-irritation benefits.N-Acetyl-L-cysteine

Parameters

PropertyValue
Melting point106-110 °C (lit.)
Boiling point438.5±45.0 °C at 760 mmHg
density1.309 g/cm3
refractive index1.513
storage temp.2-8°C
solubilityH2O: 100 mg/mL, clear, colorless
formCrystalline Powder
colorWhite to off-white
pH2.0-3.0 (10 g/L, H2O, 25℃)
Water SolubilitySoluble
pka9.78(at 25℃)
SensitiveHygroscopic
StabilityStable under normal temperatures and pressures. Protect from light.
LogP0.23
InChIKeyLQPYGBSZXQXBDH-YFKPBYRVSA-N
CAS DataBase Reference616-91-1(CAS DataBase Reference)

Safety Information

ItemValue
Hazard CodesXi
Risk Statements36/37/38
Safety Statements26-36
WGK Germany3
RTECSAC2625000
TSCATSCA listed
HS Code29309090
ToxicityLD50 orally in rat: >5000 mg/kg

Product Application of N-Acetyl-L-cysteine CAS#616-91-1
N-Acetyl-L-cysteine is widely used in respiratory care to relieve mucus buildup in bronchitis, asthma, and COPD. It is a proven antidote for acetaminophen poisoning and supports liver health. As a powerful antioxidant, it fights oxidative stress, boosts immunity, and promotes skin repair. It is used in oral care, skincare, and hair care formulations. In sports nutrition, it supports endurance and recovery. It also functions as a chelator for detoxification and is used in clinical nutrition and infant formulas.

Factory and Equipment Show
Fast delivery time
Inventory 2-3 working days  New production 7-10 working days

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