TAPSO
CAS 68399-81-5
1-Propanesulfonic acid, 2-hydroxy-3-[[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]amino]-
EPA and Census publish no US supply data for this chemical.
US productionNot reported
Top sourceNo public record
This chemical is listed as active in US commerce, but no company reported it to EPA’s survey for 2019 or 2023. Sites may have made or imported less than the threshold amount, or none.
Why supply is unknownWhere It Comes From
EPA and Census publish no US supply data for this chemical.
Why It Matters
No EPA sector or FDA product records name a use for this chemical.
Vendor Pricing
$0.23/gAaron Chemicals LLC
CountryHong Kong
Pack$117.00 / 500 g
Purity99%
Vendors23 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
22 more vendors
| Vendor | Country Supplier country. Where available, shows shipping origin. When the supplier ships from a different country than where they are registered, both are shown. Most suppliers show registration country only. | $/g | Pack | Purity |
|---|---|---|---|---|
| A2B Chem LLC | United States | $0.26 | 500 g | 99% |
| Angene Chemical | China → Hong Kong | $0.27 | 500 g | 97% |
| AA BLOCKS | United States | $0.33 | 500 g | 99% |
| Apollo Scientific US | United Kingdom | $0.42 | 1 kg | 99% |
| Combi-Blocks, Inc. | United States | $0.42 | 500 g | 98% |
| AK Scientific Specialized | United States | $0.42 | 500 g | 98% |
| BLD Pharmatech Ltd. | China | $0.42 | 500 g | 99% |
| Ambeed, Inc. | United States | $0.44 | 100 g | 99% |
| Fluorochem EU | Germany | $0.46 | 100 g | 97% |
| BLD Pharmatech GmbH | Germany | $0.48 | 25 g | 99% |
| AK Scientific, Inc. | United States | $0.56 | 500 g | 99% |
| Fluorochem UK | United Kingdom | $0.63 | 25 g | 97% |
| BLD Pharmatech Co., Limited | United States | $0.68 | 25 g | 99% |
| MedChemExpress MCE | Sweden | $0.75 | 100 g | 98% |
| AstaTech, Inc | United States | $0.89 | 100 g | 95% |
| Angene International Limited | United States | $0.93 | 500 g | 99% |
| Sigma-Aldrich (Rush Stock) | Germany | $1.51 | 100 g | 99% |
| Sigma-Aldrich | Germany | $1.51 | 100 g | 99% |
| Vitas M Chemical Limited | Hong Kong | $129.20 | 5 g | 90% |
| Labotest KG | Germany | $453.00 | 1000 mg | 90% |
| Princeton BioMolecular Research (SC) | United States | $2900.00 | 100 mg | 90% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 97% |
Chemical Identity
CAS68399-81-5
PubChem CIDNot recorded
DTXSIDDTXSID80887356
FormulaC7H17NO7S
Mol. Weight259.27 g/mol
SMILESOCC(CO)(CO)NCC(O)CS(O)(=O)=O
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
TAPSO (CAS 68399-81-5) https://chemicalindependence.com/chemical/68399-81-5/ EPA TSCA Inventory: CAS 68399-81-5. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory