Date published: 2025-9-19

1-800-457-3801

SCBT Portrait Logo
Seach Input

N-Acetyl-L-cysteine (CAS 616-91-1)

5.0(1)
Write a reviewAsk a question

See product citations (34)

Alternate Names:
N-Acetyl-L-cysteine is also known as NAC.
Application:
N-Acetyl-L-cysteine is an antioxidant mucolytic acetylated amino acid that acts as a glutathione precursor compound.
CAS Number:
616-91-1
Purity:
≥98%
Molecular Weight:
163.19
Molecular Formula:
C5H9NO3S
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

QUICK LINKS

N-Acetyl-L-cysteine is often utilized in research applications as a powerful antioxidant and a substrate in the study of glutathione metabolism. Its ability to replenish intracellular levels of glutathione makes it valuable in investigations concerning oxidative stress and cellular defense mechanisms. In the field of toxicology, N-Acetyl-L-cysteine is used to study various toxins and environmental stresses. Additionally, researchers use this compound to explore its role in modulating inflammatory responses and in the mechanics of mucus production in respiratory cells. It is also a common agent in studies related to neuroprotection, where its potential effects relating to oxidative damage are of interest.


N-Acetyl-L-cysteine (CAS 616-91-1) References

  1. The effect of glutathione and N-acetylcysteine on lipoperoxidative damage in patients with early septic shock.  |  Ortolani, O., et al. 2000. Am J Respir Crit Care Med. 161: 1907-11. PMID: 10852765
  2. Downregulation of XIAP and induction of apoptosis by the synthetic cyclin-dependent kinase inhibitor GW8510 in non-small cell lung cancer cells.  |  Dong, F., et al. 2006. Cancer Biol Ther. 5: 165-70. PMID: 16322690
  3. High-dose oral N-acetylcysteine, a glutathione prodrug, modulates inflammation in cystic fibrosis.  |  Tirouvanziam, R., et al. 2006. Proc Natl Acad Sci U S A. 103: 4628-33. PMID: 16537378
  4. Reverse mutational analysis reveals threonine-373 as a potentially sufficient phosphorylation site for inactivation of the retinoblastoma tumor suppressor protein (pRB).  |  Lents, NH., et al. 2006. Cell Cycle. 5: 1699-707. PMID: 16880741
  5. GW8510 increases insulin expression in pancreatic alpha cells through activation of p53 transcriptional activity.  |  Fomina-Yadlin, D., et al. 2012. PLoS One. 7: e28808. PMID: 22242153
  6. Functional Module Connectivity Map (FMCM): a framework for searching repurposed drug compounds for systems treatment of cancer and an application to colorectal adenocarcinoma.  |  Chung, FH., et al. 2014. PLoS One. 9: e86299. PMID: 24475102
  7. Gemcitabine resistance mediated by ribonucleotide reductase M2 in lung squamous cell carcinoma is reversed by GW8510 through autophagy induction.  |  Chen, P., et al. 2018. Clin Sci (Lond). 132: 1417-1433. PMID: 29853661
  8. Acquired tamoxifen resistance is surmounted by GW8510 through ribonucleotide reductase M2 downregulation-mediated autophagy induction.  |  Li, ZN., et al. 2020. Biochem Biophys Res Commun. 528: 554-560. PMID: 32505349
  9. Identification of diagnostic and prognostic biomarkers, and candidate targeted agents for hepatitis B virus-associated early stage hepatocellular carcinoma based on RNA-sequencing data.  |  Zeng, Z., et al. 2020. Oncol Lett. 20: 231. PMID: 32968453
  10. Construction of the prognostic enhancer RNA regulatory network in osteosarcoma.  |  Yan, P., et al. 2022. Transl Oncol. 25: 101499. PMID: 36001923
  11. N-acetylcysteine (D- and L-stereoisomers) prevents apoptotic death of neuronal cells.  |  Ferrari, G., et al. 1995. J Neurosci. 15: 2857-66. PMID: 7722634
  12. Identification of N-acetylcysteine as a new substrate for rat liver microsomal glutathione transferase. A study of thiol ligands.  |  Weinander, R., et al. 1994. J Biol Chem. 269: 71-6. PMID: 8276873
  13. Induction of apoptosis by pyrrolidinedithiocarbamate and N-acetylcysteine in vascular smooth muscle cells.  |  Tsai, JC., et al. 1996. J Biol Chem. 271: 3667-70. PMID: 8631978

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

N-Acetyl-L-cysteine, 5 g

sc-202232
5 g
$33.00

N-Acetyl-L-cysteine, 25 g

sc-202232A
25 g
$73.00

N-Acetyl-L-cysteine, 100 g

sc-202232B
100 g
$112.00

N-Acetyl-L-cysteine, 1 kg

sc-202232C
1 kg
$265.00

Dear Sirs, Could you please let me know if the product (N-acetyl L cysteine 616-91-1) liophilized and can be stored at room temperature?

Asked by: Anonymous
Thank you for your question. N-Acetyl-L-cysteine is not sold liophilized and recommend storage is room temp.
Answered by: BlakeJ
Date published: 2025-04-01

Is this synthesized or naturally derived?

Asked by: Formulator9
Thank you for your question. This information is lot dependent and can vary between lots. The most recent lot was naturally derived. Please contact technical service or your local distributor for accurate information for your lot.
Answered by: Tech Service
Date published: 2019-10-08
  • y_2025, m_9, d_17, h_8CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_2
  • loc_en_US, sid_202232, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 130ms
  • QUESTIONS, PRODUCT
Rated 5 out of 5 by from ChengCheng, H. et al. (PubMed 24113073) evaluated the effect of N-Acetyl-L-cysteine (LNAC), an acetylated amino acid with antioxidant and mucolytic properties, on the adhesive affinity between MDA-MB-231 breast cancer cells and extracellular matrix (ECM) proteins after ionizing radiation (IR). Their results indicate that continuously treating breast cancer cells with LNAC for 24h, starting immediately after IR, could inhibit IR-induced cell adhesion to ECM proteins at 24h post-IR. -SCBT Publication Review
Date published: 2015-03-29
  • y_2025, m_9, d_17, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_202232, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getReviews, 15ms
  • REVIEWS, PRODUCT
N-Acetyl-L-cysteine is rated 5.0 out of 5 by 1.
  • y_2025, m_9, d_17, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.42
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_en_US, sid_202232, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_scbt
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getAggregateRating, 128ms
  • REVIEWS, PRODUCT