C5H9NO3S
163.2 g/mol
APIWarning
N-Acetyl-L-cysteine
CAS616-91-1EC210-498-3
Category
API
Compound Class
Amide
Primary Use
Pharmaceutical Raw Material
N-Acetyl-L-cysteine is a mucolytic agent derived from the amino acid L-cysteine, characterized by a thiol group that can cleave disulfide bonds in mucus glycoproteins. It is notable for its role in reducing mucus viscosity in bronchopulmonary disorders and as a biochemical research compound used in crystallization studies.
Mucolytic adjuvant for bronchopulmonary disordersBiochemical research compoundAntidote for acetaminophen poisoning
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
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ReferenceSame Category
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pharmaceutical raw material
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Referencestereoisomer of
N-acetyl-D-cysteine
CAS26117-28-2
research compound
Safety Reference
Warning
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for N-Acetyl-L-cysteine (CAS 616-91-1) is 2930.90.
HS code (international, 6-digit)
2930.90
EU CN code (8-digit)
2930 90 16
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(2R)-2-acetamido-3-sulfanylpropanoic acid
InChIKey
PWKSKIMOESPYIA-BYPYZUCNSA-N
SMILES
CC(=O)N[C@@H](CS)C(=O)O
Synonyms (131)
- NAC-TB
- Acetilcisteina [INN-Spanish]
- Acetylcysteine (JP18/USP/INN)
- Acetylcysteine, British Pharmacopoeia (BP)
- Acetylcysteine, European Pharmacopoeia (EP)
- Acetylcysteine, United States Pharmacopeia (USP)
- Acetylcysteinum [INN-Latin]
- N-Acetyl-L-cysteine, USP grade
- (R)-mercapturic acid
- (r)-n-acetylcysteine
- A-cys
- AC-L-CYS-OH
- ACETYLCYSTEINE [MART.]
- Ac-Cys-OH
- AcCys
- Acetadote
- Acetein
- Acetilcisteina
- Acetyl-L-cysteine
- Acetylcystein, mentopin
- Acetylcysteine (Standard)
- Acetylcysteine CRS
- Acetylcysteine Injection
- Acetylcysteine Solution
- Acetylcysteinum
- Acid, Mercapturic
- Airbron
- Bromuc
- BronchoFips
- Broncholysin
- Brunac
- Cetylev
- CorniSol Eye Wash Drops
- Cysteine, N-acetyl-, L-
- En-cys
- Exomuc
- Fabrol
- Fluatox
- Fluimicil
- Fluimicil Infantil
- Fluimucetin
- Fluimucil
- Fluimucil 600
- Fluimucil long
- Fluimucil n
- Flumil
- Flumucetin
- Fluprowit
- Genac
- Hydrochloride, Acetylcysteine
- Ilube
- Ilube (eye drops)
- Inspir
- Jenapharm
- L-Acetylcysteine
- L-Cysteine, N-acetyl-
- Larylin NAC
- Lysomucil
- MPectil
- MUCOMYST (TN)
- Mercapturic acid, (R)-
- Muco sanigen
- Mucocedyl
- Mucofilin
- Mucolator
- Mucolyticum
- Mucolyticum-Lappe
- Mucolytikum Lappe
- Mucomyst
- Mucopect, Dampo
- Mucosil
- Mucosolvin
- Mucret
- N-A-C Sustain
- N-Acetyl-3-mercaptoalanine
- N-Acetyl-L-cysteine
- N-Acetylcysteine
- N-acetyi-l-cysteine
- N-acetyl-(R)-cysteine
- N-acetyl-L-cystein
- N-acetyl-l-cys
- N-acetylcystein
- NAC & TNF
- NAC AL
- NAC Zambon
- NAC, Bisolvon
- Naxid (Salt/Mix)
- Neo-fluimucil
- Oristar nalc
- Oronac 600
- Parvolex
- Respaire
- Respi-nac
- Sanigen, Muco
- Siran
- Sodium, Acetylcysteine
- Syntemucol
- Tixair
- Tris-NAC
- Yournac
- Zambon, NAC
- Zinc, Acetylcysteine
- acetylcysteine
- component of Naxid
- cysteine, N-acetyl-
- mercapturic acid
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