CAS 12269-78-2PubChem CID 155087
Pyrophyllite (AlH(SiO3)2)
- IUPAC name
- aluminum tris(dihydroxy(oxo)silane)
- Molecular formula
- AlH6O9Si3+3
- Molecular weight
- 261.28 g/mol
- Exact mass
- 260.9134998 Da
- Topological polar surface area
- 173.0 Ų
- Hydrogen-bond donors
- 6
- Hydrogen-bond acceptors
- 9
- Covalent units
- 4
- Defined stereocentres
- 0
Also known as
RefChem:202797602-803-7COMOYPSTCCFOIE-UHFFFAOYSA-N
External database identifiers
- EPA DTXSID:DTXSID50218315
Evidence from additional scientific databases
NIH PubChem PUG-View
Exact identifier match155087
Attributed physical-property, hazard, environmental and use annotations.
- Physical Description: Black or dark grey powder; [Superior Technical Ceramics MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Note: This chemical does not meet GHS hazard criteria for 52.1% (25 of 48) of all reports. Source: European Chemicals Agency (ECHA)
- Signal: Warning Source: European Chemicals Agency (ECHA)
- GHS Hazard Statements: H319 (47.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation] Source: European Chemicals Agency (ECHA)
- Precautionary Statement Codes: P264+P265, P280, P305+P351+P338, and P337+P317 (click each P-code to see the statement) Source: European Chemicals Agency (ECHA)
- ECHA C&L Notifications Summary: Aggregated GHS information provided per 48 reports by companies from 3 notifications to the ECHA C&L Inventory.; Reported as not meeting GHS hazard criteria per 25 of 48 reports by companies.; There is 1 notification provided by 23 of 48 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)
- Sources/Uses: Permitted for use as an inert ingredient in non-food pesticide products; [EPA] Used as a raw material for ceramics; [Superior Technical Ceramics MSDS] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
- Activities with risk of exposure: Ceramics making [Category: Hobbies] Source: Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
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 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.