Anodyne

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NAC
Generated by the Chemistry Development Kit (http://github.com/cdk)
Molecular structure via molpic based on CDK
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Physical properties
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163.20 g/mol [1]
0.4 [1]
Structural Identifiers
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C5H9NO3S [1]
2-acetamido-3-sulfanylpropanoic acid [1]
CC(=O)NC(CS)C(=O)O [1]
InChI=1S/C5H9NO3S/c1-3(7)6-4(2-10)5(8)9/h4,10H,2H2,1H3,(H,6,7)(H,8,9) [1]
InChIKeyPWKSKIMOESPYIA-UHFFFAOYSA-N [1]
Dosing
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Elimination half-life5.6 hours[6]

Acetylcysteine

Acetylcysteine (also known as Acetylcysteine, N-Acetyl-DL-cysteine, RefChem:828870, 230-609-9, 2-Acetamido-3-mercaptopropanoic acid, Ac-D-Cys-OH, Cysteine, N-acetyl-, 2-acetamido-3-sulfanyl-propanoic acid, Acetylcysteine isomer impurity or 2-Acetylamino-3-mercapto-propionic acid) is a substance of the amino acid class.

Chemistry

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Acetylcysteine is a racemic mixture of the

Stereoisomers
(S)-AcetylcysteineGenerated by the Chemistry Development Kit (http://github.com/cdk)
(R)-AcetylcysteineGenerated by the Chemistry Development Kit (http://github.com/cdk)
Anodyne Usernotes
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0xea / Acetylcysteine via OralTaste of Rotten Eggs that ruined my Dextromethamphetamine Tea

Legal status []

  • Australia: Acetylcysteine is a S4 substance.[3][4][5]
  • United Kingdom: Acetylcysteine is a prescription only substance.
  • United States: Acetylcysteine is a prescription only substance.

See also []

  • Substituted amino acids
  • Anodyne

    • External links []

    References []

    1. National Center for Biotechnology Information. PubChem Compound Summary for CID 581, Acetylcysteine. Accessed September 13, 2025. https://pubchem.ncbi.nlm.nih.gov/compound/581

    2. U.S. Food and Drug Administration; National Center for Advancing Translational Sciences. Acetylcysteine. UNII: 2SPH1IMO2V. Global Substance Registration System. Accessed September 13, 2025. https://gsrs.ncats.nih.gov/ginas/app/beta/substances/2SPH1IMO2V

    3. TGA eBS - Product and Consumer Medicine Information Licence. Accessed September 13, 2025. http://www.ebs.tga.gov.au/ebs/picmi/picmirepository.nsf/pdf?OpenAgent=&id=CP-2018-PI-01811-1

    4. Acetylcysteine (Omegapharm). November 30, 2022. Accessed September 13, 2025. https://www.healthdirect.gov.au/medicines/brand/amt,26341000036106/acetylcysteine-omegapharm

    5. Therapeutic Goods (Poisons Standard— June 2025) Instrument 2025. May 1, 2025. Accessed September 13, 2025. https://www.legislation.gov.au/F2025L00599/asmade/2025-05-28/text/original/pdf

    6. Acetadote- acetylcysteine injection, solution. October 1, 2021. Accessed September 13, 2025. https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=472f158a-5ab9-4308-8e49-1116e6ea3d39