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polymethyl silsesquioxane

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CAS Number: 68554-70-1
Other(deleted CASRN):149316-68-7
FDA UNII: 59Z907ZB69
Category:release agents
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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DG SANTE Food Contact Materials:methylsilsesquioxane
Physical Properties:
Assay: 95.00 to 100.00
Food Chemicals Codex Listed: No
Soluble in:
 water, 1e+006 mg/L @ 25 °C (est)
Organoleptic Properties:
Odor and/or flavor descriptions from others (if found).
Cosmetic Information:
CosIng:cosmetic data
Cosmetic Uses: opacifying agents
BOC Sciences
For experimental / research use only.
Safety Information:
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
Safety in Use Information:
release agents
Recommendation for polymethyl silsesquioxane usage levels up to:
 not for fragrance use.
Recommendation for polymethyl silsesquioxane flavor usage levels up to:
 not for flavor use.
Safety References:
European Food Safety Authority (EFSA) reference(s):

Opinion of the Scientific Panel on Food Additives a 4th list of substances for food contact materials
View page or View pdf

EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):68554-70-1
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
National Institute of Allergy and Infectious Diseases:Data
Canada Domestic Sub. List:68554-70-1
Pubchem (sid):135342838
Other Information:
FDA Indirect Additives used in Food Contact Substances:View
HMDB (The Human Metabolome Database):Search
Potential Blenders and core components note
None Found
Potential Uses:
None Found
Occurrence (nature, food, other):note
 not found in nature
 ganzpearl SI-045
 silsesquioxanes, me


PubMed:Hydrophobic modification of polymethyl methacrylate as intraocular lenses material to improve the cytocompatibility.
PubMed:Free-standing sub-10 nm nanostencils for the definition of gaps in plasmonic antennas.
PubMed:Entropy driven spontaneous formation of highly porous films from polymer-nanoparticle composites.
PubMed:Investigation of thermodynamic properties of poly(methyl methacrylate-co-n-butylacrylate-co-cyclopentyl styryl-polyhedral oligomeric silsesquioxane) by inverse gas chromatography.
PubMed:Surface characterization of poly(methyl methacrylate-co-n-butyl acrylate-co-cyclopentylstyryl-polyhedral oligomeric silsesquioxane) by inverse gas chromatography.
None found
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