Sulforaphane

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Sulforaphane
Sulforaphane.svg
Sulforaphane-3D-balls.png
Sulforaphane-3D-vdW.png
Names
Preferred IUPAC name
1-Isothiocyanato-4-(methanesulfinyl)butane
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
PubChem CID
UNII
  • InChI=1S/C6H11NOS2/c1-10(8)5-3-2-4-7-6-9/h2-5H2,1H3 X mark.svgN
    Key: SUVMJBTUFCVSAD-UHFFFAOYSA-N X mark.svgN
  • InChI=1/C6H11NOS2/c1-10(8)5-3-2-4-7-6-9/h2-5H2,1H3
    Key: SUVMJBTUFCVSAD-UHFFFAOYAY
  • CS(=O)CCCCN=C=S
Properties
C6H11NOS2
Molar mass 177.29 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
X mark.svgN  verify  (what is  Yes check.svgYX mark.svgN ?)

Sulforaphane (sometimes sulphoraphane in British English) is a phytochemical [1] within the isothiocyanate group of organosulfur compounds. [2] It is produced when the enzyme myrosinase transforms glucoraphanin, a glucosinolate, into sulforaphane upon damage to the plant (such as from chewing or chopping during food preparation), which allows the two compounds to mix and react.

Sulforaphane is present in cruciferous vegetables, such as broccoli, Brussels sprouts, and cabbage. [2]

Sulforaphane has two possible stereoisomers due to the presence of a stereogenic sulfur atom. [3]

The R-sulforaphane enantiomer occurs naturally, while the S-sulforaphane can be synthesized. [4]

Glucoraphanin.png
Glucoraphanin, the glucosinolate precursor to sulforaphane

Occurrence and isolation

Sulforaphane occurs in broccoli sprouts, which, among cruciferous vegetables, have the highest concentration of glucoraphanin, the precursor to sulforaphane. [2] [5] It is also found in cabbage, cauliflower, Brussels sprouts, bok choy, kale, collards, mustard greens, and watercress. [2]

Research

As of 2025, randomized controlled trials of sulforaphane-rich preparations in humans have demonstrated changes in surrogate biomarkers, such as reduced bronchial epithelial Ki-67 in former smokers, [6] altered prostate-specific antigen kinetics in men with biochemical recurrence of prostate cancer, [7] and increased urinary excretion of airborne pollutants such as benzene and acrolein. [8] Small clinical studies have also reported possible improvements in some symptoms of autism spectrum disorder, [9] although later reviews found the results inconsistent and not conclusive. [10] Despite these findings, no clinical trial has shown that sulforaphane reduces the actual incidence, progression, or mortality of cancer or other diseases, and overall clinical evidence remains limited and inconclusive. [11]

See also

References

  1. The Impact of Sulforaphane on Sex-Specific Conditions and Hormone Balance: A Comprehensive Review. By: Fahey, Jed W., Raphaely, Mirran, Applied Sciences (2076-3417), 20763417, Jan2025, Vol. 15, Issue 2
  2. 1 2 3 4 "Isothiocyanates". Micronutrient Information Center, Linus Pauling Institute, Oregon State University. 2025. Retrieved 21 January 2025.
  3. Janczewski Ł (March 2022). "Sulforaphane and Its Bifunctional Analogs: Synthesis and Biological Activity". Molecules. 27 (5): 1750. doi: 10.3390/molecules27051750 . PMC   8911885 . PMID   35268851.
  4. Zhang Y, Lu Q, Li N, Xu M, Miyamoto T, Liu J (March 2022). "Sulforaphane suppresses metastasis of triple-negative breast cancer cells by targeting the RAF/MEK/ERK pathway". npj Breast Cancer. 8 (1) 40. doi:10.1038/s41523-022-00402-4. PMC   8948359 . PMID   35332167.
  5. Houghton CA, Fassett RG, Coombes JS (November 2013). "Sulforaphane: translational research from laboratory bench to clinic". Nutrition Reviews. 71 (11): 709–726. doi: 10.1111/nure.12060 . PMID   24147970.
  6. Singh K, Lin J, Hsu F (2016). "Broccoli sprout extract reduces bronchial epithelial cell proliferation in former smokers". Cancer Prevention Research. 9 (8): 696–703. doi:10.1158/1940-6207.CAPR-16-0126. PMID   27402788.
  7. Alumkal J, Slottke R, Tangen C (2015). "Randomized clinical trial of sulforaphane in men with biochemical recurrence of prostate cancer". Investigational New Drugs. 33 (2): 480–489. doi:10.1016/S0065-230X(15)00010-X. PMID   25640273.
  8. Egner P, Chen J, Wang J, Wu Y, Sun Y, Zhang Q, Zhou J, Chen T, Zhu J, Zhang B (2014). "Phase 2 trial of broccoli sprout beverage on detoxication of airborne pollutants in China". Cancer Prevention Research. 7 (8): 813–823. doi:10.1158/1940-6207.CAPR-14-0103. PMC   4125483 . PMID   24913818.
  9. Zimmerman A, Singh K, Connors S, Liu H, Panjwani A (2014). "Randomized controlled trial of sulforaphane in autism spectrum disorder". Proceedings of the National Academy of Sciences. 111 (43): 15550–15555. doi: 10.1073/pnas.1416940111 . PMC   4210299 . PMID   25288738.
  10. Jahan Y, Moradi K (2023). "Efficacy of sulforaphane supplementation in autism spectrum disorder: A systematic review and meta-analysis". Frontiers in Psychiatry. 14 (1): 1098803. doi: 10.1038/s41467-023-39599-8 . PMC   10318044 . PMID   37400452.
  11. Yanaka A (2023). "Sulforaphane and its effects on cancer chemoprevention: current status and future prospects". Frontiers in Oncology. 13 (15): 1251895. doi: 10.3389/fonc.2023.1251895 . PMID   37653291.{{cite journal}}: CS1 maint: article number as page number (link)