1-Chloro-4-propoxy-9H-thioxanthen-9-one
CAS 142770-42-1
9H-Thioxanthen-9-one, 1-chloro-4-propoxy-
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
$1.51/gA2B Chem LLC
CountryUnited States
Pack$755.00 / 500 g
Purity98%
Vendors20 available
Prices reflect listed pack sizes. Small research packs run far above bulk rates.
19 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 |
|---|---|---|---|---|
| AA BLOCKS | United States | $1.68 | 500 g | 98% |
| Aaron Chemicals LLC | Hong Kong | $2.05 | 500 g | 99% |
| Angene Chemical | China → Hong Kong | $2.06 | 500 g | 99% |
| Chemscene | United States | $2.12 | 500 g | — |
| BLD Pharmatech Co., Limited | United States | $2.12 | 500 g | 97% |
| BLD Pharmatech GmbH | Germany | $2.12 | 500 g | 97% |
| BLD Pharmatech Ltd. | China | $2.12 | 500 g | 97% |
| Ambeed, Inc. | United States | $2.12 | 500 g | 97% |
| Combi-Blocks, Inc. | United States | $2.20 | 100 g | 95% |
| AK Scientific Specialized | United States | $3.53 | 100 g | 95% |
| Synthonix | United States | $5.00 | 10 g | 95% |
| Fluorochem EU | Germany | $5.08 | 10 g | 97% |
| AK Scientific, Inc. | United States | $5.80 | 100 g | 98% |
| AstaTech (2 weeks) | United States | $8.60 | 5 g | 95% |
| Angene International Limited | United States | $47.20 | 5 g | 98% |
| Angene | China → Hong Kong | $4266.67 | 30 mg | 99% |
| ChemDiv, Inc. | United States | $5480.00 | 50 mg | 90% |
| Asinex | Netherlands | $6461.40 | 100 mg | 90% |
| TimTec, LLC (back-ordered) | United States | $32000.00 | 15 mg | 94% |
Chemical Identity
CAS142770-42-1
PubChem CIDNot recorded
DTXSIDDTXSID50888976
FormulaC16H13ClO2S
Mol. Weight304.79 g/mol
SMILESCCCOC1=CC=C(Cl)C2=C1SC1=C(C=CC=C1)C2=O
Data Sources
- EPA TSCA InventoryRetrieved 2026-10-04
Brief citations
1-Chloro-4-propoxy-9H-thioxanthen-9-one (CAS 142770-42-1) https://chemicalindependence.com/chemical/142770-42-1/ EPA TSCA Inventory: CAS 142770-42-1. Retrieved 2026-10-04. https://www.epa.gov/tsca-inventory