Basic information
- CAS
1066-42-8- Standard SMILES
C[Si](C)(O)O- InChIKey
XCLIHDJZGPCUBT-UHFFFAOYSA-N- Molecular formula
- C2H8O2Si
- Average molar mass
- 92.17 g/mol
- Monoisotopic mass
- 92.02935603
Overview
Dimethylsilanediol is an organosilanediol.
Names & identifiers
- Preferred name
- Dimethylsilanediol
- IUPAC
- dihydroxy(dimethyl)silane
- English name
- dimethylsilanediol
- Molecular formula
- C2H8O2Si
- Molecular weight
- 92.17
Names & synonyms
DIMETHYLSILANEDIOL1066-42-8Silanediol, dimethyl-Silanediol, 1,1-dimethyl-DNZ4KJE28UDTXSID2061434CHEBI:23816RefChem:134378DTXCID8033011213-915-7dihydroxy(dimethyl)silaneDimethiconol
Show more names
DimethyldihydroxysilaneimethylsilanediolSimethicone Impurity 1dihydroxy-dimethyl-silane
1,1-Dimethylsilanediol31692-79-2Simethicone Impurity 10C2H8O2SiPolydimethylsiloxane, hydroxy terminated, M.W. 4200Hydroxy-terminated poly(dimethylsiloxane)1,1-Dimethylsilanediol >90%Dihydroxydimethylsilane; Dimethyldihydroxysilane; Dimethylsilanediol;
Database identifiers
- CAS
1066-42-8、31692-79-2- PubChem CID
- 14014
- DTXSID
DTXSID2061434- ChEBI
CHEBI:23816- UNII
- DNZ4KJE28U
- EC Number
- 213-915-7、608-658-6
- Nikkaji
- J217.170H
Properties
Computed structural properties
- Topological polar surface area
- 40.5 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 2
- Rotatable bonds
- 0
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 30.6
Experimental & physicochemical properties
Cosmetics
Cosmetic ingredients (Dimethiconol) -> CIR (Cosmetic Ingredient Review)
Moisturising; Antifoaming; Emollient
Physicochemical properties
- Melting point
- 101 ℃ · 101℃
- Boiling point
- 122.2 · 122.2±23.0 °C(Predicted)
- Density
- 1.097 g/cm3 · 1.097 g/cm3
- storage temp.
- -86 °C · Hygroscopic, -86°C Freezer, Under inert atmosphere
- solubility
- DMSO (Slightly), Methanol (Slightly)
- pka
- 14.24 · 14.24±0.53(Predicted)
- form
- Solid
- color
- White to Pale Red
- Henry's Law Constant
- 2.8 · 2.8×103 mol/(m3Pa) at 25℃, Xu and Kropscott (2012)
- Stability
- Hygroscopic, Temperature Sensitive
- FDA UNII
- 4 KJE28U · DNZ4KJE28U
- EPA Substance Registry System
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 5.2% (3 of 58) of reports.
Warning
H361 (94.8%): Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
P203, P280, P318, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 58 reports by companies from 2 notifications to the ECHA C&L Inventory.
This chemical does not meet GHS hazard criteria for 3% (1 of 33) of reports.
Hazard information
Regulatory Information
Chemical: Silanediol, dimethyl-
Dimethiconol: 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.
Hazard Classes and Categories
Aquatic Chronic 2 (97%)
Repr. 2 (94.8%)
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
Chemistry & industry
Uses & manufacturing
UsesCIR ingredient: Dimethiconol
Household ProductsInformation on 277 consumer products that contain Dimethiconol in the following categories is provided:
Use ClassificationCosmetics -> Moisturising; Antifoaming; Emollient
General Manufacturing InformationSilanediol, 1,1-dimethyl-: ACTIVE
Applications
Uses1,1-Dimethylsilanediol >90% is the monomer of an important class of commercial compounds called PDMS. Dimethylsilanediol is useful as a hydrophobization of oxidized silicon and other oxidized metal surfaces and compares the wetting properties of modified solids with those of conventionally modified surfaces.
Uses1,1-Dimethylsilanediol is the monomer of an important class of of commercial compounds called PDMS. Dimethylsilanediol is useful as a hydrophobization of oxidized silicon and other oxidized metal surf aces and compare the wetting properties of modified solids with those of conventionally modified surfaces.
Upstream & downstream products
Upstream raw materials
Related reactions
1 records
Compound notes
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