Potassium titanium oxide (K2Ti6O13)
Potassium titanium oxide (K2Ti6O13) is listed in Annex II as a prohibited substance for cosmetic products placed on the EU market.
Chemical identity and properties
Dipotassium;tridecakis(oxygen(2-));hexakis(titanium(4+))
- IUPAC name
- dipotassium;tridecakis(oxygen(2-));hexakis(titanium(4+))
- Molecular formula
- K2O13Ti6
- Molecular weight
- 573.39 g/mol
- Exact mass
- 573.548947 Da
- Topological polar surface area
- 13.0 Ų
- Hydrogen-bond donors
- 0
- Hydrogen-bond acceptors
- 13
- Covalent units
- 21
- Defined stereocentres
- 0
Also known as
Evidence from additional scientific databases
NIH PubChem PUG-View
Attributed physical-property, hazard, environmental and use annotations.
- Physical Description: Other Solid; Dry Powder Source: EPA Chemical Data Reporting (CDR)
- Signal: Warning Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- GHS Hazard Statements: H351: Suspected of causing cancer [Warning Carcinogenicity] Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- Precautionary Statement Codes: P203, P280, P318, P405, and P501 (click each P-code to see the statement) Source: Regulation (EC) No 1272/2008 of the European Parliament and of the Council
- Note: This chemical does not meet GHS hazard criteria for 5.4% (5 of 92) of reports. Source: European Chemicals Agency (ECHA)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H351 (94.6%): Suspected of causing cancer [Warning Carcinogenicity] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P203, P280, P318, P405, and P501 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 92 reports by companies from 6 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 5 of 92 reports by companies.; There are 5 notifications provided by 87 of 92 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Note: This chemical does not meet GHS hazard criteria for 50% (1 of 2) of reports. Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H351 (50%): Suspected of causing cancer [Warning Carcinogenicity] Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 2 reports by companies from 2 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 1 of 2 reports by companies.; There is 1 notification provided by 1 of 2 reports by companies with hazard statement code(s).; Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website. Source: European Chemicals Agency (ECHA)
- Signal: Danger Source: Hazardous Chemical Information System (HCIS), Safe Work Australia
- Consumer Uses: Other; Anti-slip agent; Filler Source: EPA Chemical Data Reporting (CDR)
- Industry Uses: Other; Filler; Anti-slip agent Source: EPA Chemical Data Reporting (CDR)
Mapped by: Existing checksum-valid CAS to unique PubChem CID match. Retrieved: 2026-08-31. Open source record
Scientific classifications and hazard annotations provide context and do not replace the market-specific regulatory decision shown above.
Additional source coverage and match status
| Source | Result | Checked |
|---|---|---|
| NIH PubChem PUG-View | Exact match | 2026-08-31 |
A recorded no-match is useful evidence that the source was checked; it is not a claim that the substance does not exist elsewhere.
Retrieved from NIH PubChem on 2026-09-02 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.
Record details
Chemical name
Potassium titanium oxide (K2Ti6O13)
Chemical / IUPAC name
Potassium titanium oxide (K2Ti6O13)
Regulatory information
CMR
| Category | Carcinogenic | Mutagenic | Reprotoxic |
|---|---|---|---|
| Cat. 2 | ✓ | — | — |
Key data
Related records for Potassium titanium oxide (K2Ti6O13)
Direct matches are limited for this record, so nearby entries from Annex II are shown as well.
Reaction mass of: 4,7-bis(mercaptomethyl)-3,6,9-trithia-1,11-undecanedithiol; 4,8-bis(mercaptomethy…
(4-Phenylbutyl)phosphinic acid
Reaction mass of: dimethyl (2-(hydroxymethylcarbamoyl)ethyl)phosphonate; diethyl (2-(hydroxymethylc…
Glufosinate ammonium (ISO); ammonium 2-amino-4-(hydroxymethylphosphinyl)butyrate
Phoxim (ISO); a-(diethoxy-phosphinothioylimino) phenylacetonitrile
Nickel dinitrate [1]; Nitric acid, nickel salt [2]
(4-Ethoxyphenyl)(3-(4-fluoro-3-phenoxyphenyl)propyl)dimethylsilane
What Annex II means for Potassium titanium oxide (K2Ti6O13)
Potassium titanium oxide (K2Ti6O13) is listed as a prohibited substance under Annex II of EU Cosmetics Regulation 1223/2009 and must not be intentionally added. Article 17 separately addresses unintended small quantities that are technically unavoidable under good manufacturing practice and compatible with the Article 3 safety requirement.
Formulators must screen their ingredients and raw materials to ensure none contain this substance. Suppliers should provide documentation confirming absence when requested.
The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.
Compliance checklist
- Verify this substance is absent from all raw materials and finished formulations.
- Request absence confirmation or CoA from raw material suppliers.
- Document the screening result in the Product Information File (PIF).
- This substance has CMR classification. Review the CMR table above and verify current Annex II/III status before use.
Frequently asked questions
Source note for Annex II record Potassium titanium oxide (K2Ti6O13)
This page summarizes one Annex II record for Potassium titanium oxide (K2Ti6O13) from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.
Use this record page to review Annex II conditions for Potassium titanium oxide (K2Ti6O13), but confirm any final regulatory decision against the current official annex wording and source files.
Tools & next steps
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