Low-Priority Substances under TSCA
On February 20, 2020, EPA finalized the designation of 20 Low-Priority chemical substances under the Toxic Substances Control Act (TSCA). The designation is the third and final step in prioritization — a process for reviewing chemical substances under the amended TSCA. To support a priority designation, EPA considered reasonably available information for each chemical substance under its conditions of use against the criteria specified in TSCA section 6(b)(1)(A). A final designation of “low priority” means that a risk evaluation was not warranted at the time of designation.
- Read the Federal Register notice.
- For each chemical substance, EPA published supporting information for the low-priority substance designation.
On other pages:
- Learn more about the December 2019 designation of 20 High-Priority chemical substances.
- Find the docket numbers, scope documents and other information for chemical substances undergoing risk evaluation.
| Low Priority Candidates | |||||
| Chemical Name | CAS | Docket Number | Status* | Agency Contact | |
|---|---|---|---|---|---|
| 1-Butanol, 3-methoxy-, 1-acetate | 4435-53-4 | EPA-HQ-OPPT-2019-0106 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| D-gluco-Heptonic acid, sodium salt (1:1), (2.xi.)- | 31138-65-5 | EPA-HQ-OPPT-2019-0107 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| D-Gluconic acid | 526-95-4 | EPA-HQ-OPPT-2019-0108 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| D-Gluconic acid, calcium salt (2:1) | 299-28-5 | EPA-HQ-OPPT-2019-0109 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| D-Gluconic acid, .delta.-lactone | 90-80-2 | EPA-HQ-OPPT-2019-0110 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| D-Gluconic acid, potassium salt (1:1) | 299-27-4 | EPA-HQ-OPPT-2019-0111 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| D-Gluconic acid, sodium salt (1:1) | 527-07-1 | EPA-HQ-OPPT-2019-0112 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Decanedioic acid, 1,10-dibutyl ester | 109-43-3 | EPA-HQ-OPPT-2019-0113 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| 1-Docosanol | 661-19-8 | EPA-HQ-OPPT-2019-0114 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| 1-Eicosanol | 629-96-9 | EPA-HQ-OPPT-2019-0115 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| 1,2-Hexanediol | 6920-22-5 | EPA-HQ-OPPT-2019-0116 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| 1-Octadecanol | 112-92-5 | EPA-HQ-OPPT-2019-0117 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Propanol, [2-(2-butoxymethylethoxy)methylethoxy]- | 55934-93-5 | EPA-HQ-OPPT-2019-0118 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Propanedioic acid, 1,3-diethyl ester | 105-53-3 | EPA-HQ-OPPT-2019-0119 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Propanedioic acid, 1,3-dimethyl ester | 108-59-8 | EPA-HQ-OPPT-2019-0120 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Propanol, 1(or 2)-(2-methoxymethylethoxy)-, acetate | 88917-22-0 | EPA-HQ-OPPT-2019-0121 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Propanol, [(1-methyl-1,2-ethanediyl)bis(oxy)]bis- | 24800-44-0 | EPA-HQ-OPPT-2019-0122 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| 2-Propanol, 1,1'-oxybis- | 110-98-5 | EPA-HQ-OPPT-2019-0123 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Propanol, oxybis- | 25265-71-8 | EPA-HQ-OPPT-2019-0124 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|
| Tetracosane, 2,6,10,15,19,23-hexamethyl- | 111-01-3 | EPA-HQ-OPPT-2019-0125 | Low | Lauren Sweet Email: Sweet.lauren@epa.gov Phone: 202-564-0376 |
|