Date published: 2026-3-4

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Sulfur trioxide triethylamine complex (CAS 761-01-3)

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Alternate Names:
NSC 68185; NSC 8168; Triethylamine sulfur trioxide complex
CAS Number:
761-01-3
Molecular Weight:
181.25
Molecular Formula:
C6H15N•SO3
Supplemental Information:
This is classified as a Dangerous Good for transport and may be subject to additional shipping charges.
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Sulfur trioxide triethylamine complex exhibits solubility in both water and alcohol. It serves as a catalyst in organic synthesis and a reagent in the production of sulfur trioxide. Additionally, the complex is valued as an antioxidant and a fuel additive to reduce emissions of volatile organic compounds (VOCs) and oxides of nitrogen (NOx).


Sulfur trioxide triethylamine complex (CAS 761-01-3) References

  1. Synthesis of an isomeric mixture (24RS,25RS) of sodium scymnol sulfate.  |  Harney, DW. and Macrides, TA. 2008. Steroids. 73: 424-9. PMID: 18255112
  2. Sulfate-conjugated methylprednisolone: evaluation as a colon-specific methylprednisolone prodrug and comparison with sulfate-conjugated prednisolone and dexamethasone.  |  Kong, H., et al. 2009. J Drug Target. 17: 159-67. PMID: 18988065
  3. Potential corticoid metabolites: chemical synthesis of 3- and 21-monosulfates and their double-conjugates of tetrahydrocorticosteroids in the 5alpha- and 5beta-series.  |  Okihara, R., et al. 2010. Chem Pharm Bull (Tokyo). 58: 344-53. PMID: 20190439
  4. Synthetic and semi-synthetic chondroitin sulfate oligosaccharides, polysaccharides, and glycomimetics.  |  Bedini, E. and Parrilli, M. 2012. Carbohydr Res. 356: 75-85. PMID: 22410317
  5. An alternative route for fondaparinux sodium synthesis via selective hydrogenations and sulfation of appropriate pentasaccharides.  |  Manikowski, A., et al. 2012. Carbohydr Res. 361: 155-61. PMID: 23023042
  6. Bioappearance and pharmacokinetics of bioactives upon coffee consumption.  |  Lang, R., et al. 2013. Anal Bioanal Chem. 405: 8487-503. PMID: 23982107
  7. Improved synthesis of glycine, taurine and sulfate conjugated bile acids as reference compounds and internal standards for ESI-MS/MS urinary profiling of inborn errors of bile acid synthesis.  |  Donazzolo, E., et al. 2017. Chem Phys Lipids. 204: 43-56. PMID: 28300538
  8. Synthesis of disulfates of unconjugated and conjugated bile acids.  |  Goto, J., et al. 1987. Chem Pharm Bull (Tokyo). 35: 4562-7. PMID: 3442890
  9. Chemical Approaches to Prepare Modified Heparin and Heparosan Polymers for Biological Studies.  |  Raman, K. and Arungundram, S. 2022. Methods Mol Biol. 2303: 289-296. PMID: 34626387
  10. Sulfation of Heparan and Chondroitin Sulfate Ligands Enables Cell-Specific Homing of Nanoprobes.  |  Mardhekar, S., et al. 2023. Chemistry. 29: e202202622. PMID: 36325647
  11. Bile acid sulfates. III. Synthesis of 7- and 12-monosulfates of bile acids and their conjugates using a sulfur trioxide-triethylamine complex.  |  Tserng, KY. and Klein, PD. 1979. Steroids. 33: 167-82. PMID: 462491
  12. The stereochemical course of nucleotidyl transfer catalyzed by ATP sulfurylase.  |  Bicknell, R., et al. 1982. J Biol Chem. 257: 8922-7. PMID: 6284750
  13. Synthesis of sulfate esters of lithocholic acid, glycolithocholic acid, and taurolithocholic acid with sulfur trioxide-triethylamine.  |  Tserng, KY. and Klein, PD. 1977. J Lipid Res. 18: 491-5. PMID: 894140

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Sulfur trioxide triethylamine complex, 5 g

sc-215935A
5 g
$102.00

Sulfur trioxide triethylamine complex, 25 g

sc-215935
25 g
$378.00