Decabromobiphenyl ether
CAS 1163-19-5
EPA lists this substance on the non-confidential Toxic Substances Control Act Chemical Substance Inventory as Benzene, 1,1'-oxybis[2,3,4,5,6-pentabromo-.
This is a TSCA industrial chemistry record, not a food or flavor assessment. Presence on the TSCA Inventory says a substance is in US commerce. It says nothing about whether it may be used in food, and this substance is not FEMA GRAS. For flavor ingredients see the FEMA GRAS lookup.
Commercial activity status
Active
EPA designates this substance active in US commerce, so no Notice of Activity Form B is required before manufacturing. What active and inactive mean.
EPA regulatory flags
EPA marks this listing with 3 flags. Each one is shown with EPA's own definition and what it obliges.
Indicates a substance that is the subject of a proposed or final TSCA section 6 risk management rule.
What it obliges: Compliance with the rule, which can restrict or prohibit manufacture, processing, use, distribution or disposal. Section 6 is the strongest tool TSCA gives EPA.
What it does not establish: The flag does not distinguish a proposed rule from a final one. Read the rule.
Indicates a substance that is identified in a proposed Significant New Use Rule.
What it obliges: No significant new use notice yet. Export notification under TSCA section 12(b) already applies, because 40 CFR 721.20 reaches substances named in a proposed rule as well as a final one.
What it does not establish: A proposed rule may change or may never be finalized. Read the proposal.
Indicates a substance that is the subject of a final TSCA section 4 test rule or order.
What it obliges: Testing and submission of the resulting data, on the terms of the rule or order. It also drops the Chemical Data Reporting threshold from 25,000 to 2,500 pounds.
Identity
- CAS number
- 1163-19-5
- Molecular formula
- C12Br10O
- Molecular weight
- 959.20
- InChIKey
- WHHGLZMJPXIBIX-UHFFFAOYSA-N
What this page does not establish
It reports what EPA publishes about CAS 1163-19-5 in the July 2026 release of the non-confidential Inventory. It does not report the contents of any order or rule that a flag points at, because EPA does not publish those on the Inventory, and it does not say whether a particular use of yours is permitted.
It is also not a food or flavor clearance. This substance carries no FEMA GRAS number.
From the EPA non-confidential TSCA Inventory, July 2026 release. EPA also maintains a confidential portion it does not publish. Search the Inventory · Browse substances A to Z · All regulatory flags