Basic information
- CAS
18748-98-6- Standard SMILES
CCCCCCCCCCCCCCCCCCO[Si](C)(C)C- InChIKey
GVPDNFYOFKBFEN-UHFFFAOYSA-N- Molecular formula
- C21H46OSi
- Average molar mass
- 342.7 g/mol
- Monoisotopic mass
- 342.33179262
Names & identifiers
- Preferred name
- Stearoxytrimethylsilane
- IUPAC
- trimethyl(octadecoxy)silane
- English name
- trimethyl(octadecyloxy)silane
- Molecular formula
- C21H46OSi
- Molecular weight
- 342.67
Names & synonyms
Trimethyl(octadecyloxy)silane18748-98-6Silane, trimethyl(octadecyloxy)-Stearoxytrimethylsilanestearoxy trimethylsilanestearoxy trimethyl silaneEINECS 242-554-89862TW94B2SILCARE SILICONE 1M71DTXSID5066405STEAROXYTRIMETHYLSILANE [II]STEAROXYTRIMETHYLSILANE (II)
Show more names
trimethyl stearyloxysilaneTrimethyl(Ctadecyloxy)SilaneTrimethyl(octadecyloxy)silanSTEARYLOXYTRIMETHYLSILANE, tech-95
stearyloxytrimethylsilaneRefChem:889157Silane, trimethyl(octadecyloxy)DTXCID4035914STEAROXYTRIMETHYLSILANE [INCI]242-554-8EINECS 242-553-2trimethyl(octadecoxy)silane
Database identifiers
- CAS
18748-98-6- PubChem CID
- 87778
- DTXSID
DTXSID5066405- UNII
- 9862TW94B2
- EC Number
- 242-554-8
- Nikkaji
- J222.294I
Properties
Computed structural properties
- Topological polar surface area
- 9.2 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 18
- Heavy atoms
- 23
- Formal charge
- 0
- Complexity
- 222
Experimental & physicochemical properties
Chemical ClassesMetals -> Metalloid Compounds (Silicon)
Cosmetics
Cosmetic ingredients (Stearoxytrimethylsilane) -> CIR (Cosmetic Ingredient Review)
Skin conditioning; Emollient
Physical DescriptionLiquid
Physicochemical properties
- Melting point
- 15 · 15-20°C
- Boiling point
- 387.1 · 387.1±10.0 °C(Predicted)
- Density
- 0.821 · 0.821±0.06 g/cm3(Predicted)
- vapor pressure
- 0.011 Pa · 0.011Pa at 25℃
- refractive index
- 1.44 · 1.4400
- Flash point
- 110 °C · >110°C (>230°F)
- Specific Gravity
- 0.821 · 0.821
- Water Solubility
- 50 μg/L · 50μg/L at 20℃
- Hydrolytic Sensitivity
- 4 · 4: no reaction with water under neutral conditions
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 100% (65 of 65) of all reports.
Not Classified
Aggregated GHS information provided per 65 reports by companies from 1 notifications to the ECHA C&L Inventory.
Hazard information
Regulatory Information
Chemical: Silane, trimethyl(octadecyloxy)-
Silane, trimethyl(octadecyloxy)- is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Silane, trimethyl(octadecyloxy)- are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
REACH registered substance: Trimethyl(octadecyloxy)silane (EC: 242-554-8)
Silane, trimethyl(octadecyloxy)-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards SummarySee Hexamethyldisiloxane.
Hazard Classes and CategoriesNot Classified
Toxicology
Toxicity SummarySafe in the present practices of use and concentration. Ingredient, concentration, and use information are available in documents discoverable at https://cir-reports.cir-safety.org
Safety data
- tsca
- TSCA listed
- REACH Registrations
Chemistry & industry
Uses & manufacturing
UsesCIR ingredient: Stearoxytrimethylsilane
U.S. Production2023: <50,000 lb
Industry UsesOther
Use ClassificationCosmetics -> Skin conditioning; Emollient
General Manufacturing Information
Petroleum Lubricating Oil and Grease Manufacturing
Silane, trimethyl(octadecyloxy)-: ACTIVE
Upstream & downstream products
Downstream products
Suppliers18 total
北京福源坊科技有限公司010-57903446 15869909019 · [email protected]
陕西缔都新材料有限公司029-63373950 17392216152 · [email protected]
北京华威锐科化工有限公司0757-86329057 18934348241 · [email protected]
上海祈铭新材料有限公司021-36010885 13661599081;13701898138 · [email protected]
上海探圭新材料科技有限公司18516111942 · [email protected]
Alfa Chemistry1-516-6625404 · [email protected]
深圳市创鑫生物科技有限公司
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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