Date published: 2026-5-23

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Thiochrome (CAS 92-35-3)

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Alternate Names:
2,7-Dimethylthiachromine-8-ethanol
CAS Number:
92-35-3
Molecular Weight:
262.33
Molecular Formula:
C12H14N4OS
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Thiochrome is a chemical compound primarily recognized for its utility in biochemical research, particularly in studies involving thiamine, also known as vitamin B1. Due to its fluorescent properties, thiochrome is utilized as a sensitive probe for the detection and quantification of thiamine in various biological samples, facilitating research into the vitamin′s role in cellular metabolism. In enzymology, thiochrome serves as a tool to investigate the activity of thiamine diphosphate-dependent enzymes, which are for the catalysis of key metabolic reactions. Additionally, researchers use thiochrome to study the transport and uptake mechanisms of thiamine in living organisms, which is essential for understanding the nutritional and metabolic implications of this vitamin. In analytical chemistry, thiochrome is employed in the development of assays based on high-performance liquid chromatography (HPLC) and fluorescence detection, aiding in the advancement of sensitive analytical techniques.


Thiochrome (CAS 92-35-3) References

  1. Determination of thiamine by high-performance liquid chromatography.  |  Lynch, PL. and Young, IS. 2000. J Chromatogr A. 881: 267-84. PMID: 10905711
  2. THIAMINE: A NOVEL CONVERSION FROM THIOCHROME.  |  RINSINGER, GE. and PARKER, PN. 1963. Science. 141: 1280-1. PMID: 14059782
  3. Silver-induced enhancement of thiochrome-based peroxide measurements.  |  Li, J., et al. 2003. Anal Chem. 75: 6753-8. PMID: 14640758
  4. Thiochrome enhances acetylcholine affinity at muscarinic M4 receptors: receptor subtype selectivity via cooperativity rather than affinity.  |  Lazareno, S., et al. 2004. Mol Pharmacol. 65: 257-66. PMID: 14722259
  5. [Thiochrome inhibition of alcohol dehydrogenase].  |  Petrov, SA. 1992. Ukr Biokhim Zh (1978). 64: 91-4. PMID: 1488820
  6. Thiamine and vasculopathies.  |  Stepuro, II. 2005. Prostaglandins Leukot Essent Fatty Acids. 72: 115-27. PMID: 15626594
  7. Flow injection fluorimetric determination of thiamine and copper based on the formation of thiochrome.  |  Perez-Ruiz, T., et al. 1992. Talanta. 39: 907-11. PMID: 18965470
  8. Administration of Thiamine and Thiochrome Enhanced Reproduction of Chlorella, Drosophila melanogaster, and Danio.  |  Petrov, SA., et al. 2016. J Nutr Sci Vitaminol (Tokyo). 62: 6-11. PMID: 27117845
  9. Photolysis of thiochrome in aqueous solution: A kinetic study.  |  Anwar, Z., et al. 2020. J Photochem Photobiol B. 203: 111766. PMID: 31927488
  10. How is vitamin B1 oxidized to thiochrome? Elementary processes revealed by a DFT study.  |  Yamabe, S., et al. 2021. Org Biomol Chem. 19: 4529-4536. PMID: 33929469
  11. Fluorometry detection for trypsin via inner filter effect between cytochrome C and in-situ formed fluorescent thiochrome.  |  Yao, Z., et al. 2021. Talanta. 234: 122614. PMID: 34364423
  12. A smartphone-based ratiometric fluoroprobe based on blue-red dual-emission signals of thiochrome and copper nanoclusters for sensitive assay of metam-sodium in cucumbers.  |  Chen, K., et al. 2023. Talanta. 261: 124673. PMID: 37207510
  13. Determination of urinary thiamin by the thiochrome method.  |  Dong, MH., et al. 1981. Clin Biochem. 14: 16-8. PMID: 6453672
  14. A reliable semiautomated method for the determination of total thiamine in whole blood by the thiochrome method with high-performance liquid chromatography.  |  Schrijver, J., et al. 1982. Ann Clin Biochem. 19: 52-6. PMID: 7065633

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Thiochrome, 100 mg

sc-255658
100 mg
$154.00