1,3-Diphenyltetramethyldisiloxane
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Basic information
- CAS
56-33-7- Standard SMILES
C[Si](C)(O[Si](C)(C)c1ccccc1)c1ccccc1- InChIKey
YQJPWWLJDNCSCN-UHFFFAOYSA-N- Molecular formula
- C16H22OSi2
- Average molar mass
- 286.51 g/mol
- Monoisotopic mass
- 286.12091838
Overview
1,3-diphenyltetramethyldisiloxane is an organosiloxane.
Names & identifiers
- Preferred name
- 1,3-Diphenyltetramethyldisiloxane
- IUPAC
- [dimethyl(phenyl)silyl]oxy-dimethyl-phenylsilane
- English name
- 1,3-Diphenyl-1,1,3,3-tetramethyldisiloxane
- Molecular formula
- C16H22OSi2
- Molecular weight
- 286.52
Names & synonyms
1,1,3,3-Tetramethyl-1,3-diphenyldisiloxane1,3-Diphenyltetramethyldisiloxane1,3-Diphenyl-1,1,3,3-tetramethyldisiloxaneDisiloxane, 1,1,3,3-tetramethyl-1,3-diphenyl-DiphenyltetramethyldisiloxaneEINECS 200-265-4UNII-9X93JM12WMNSC 96791BRN 29432299X93JM12WMDTXSID8022537CHEBI:34061
Show more names
d6190DK333DKSI134DKFELEX0209Oxybis(phenyldimethylsilane)TetramethyldiphenyldisiloxaneBis(phenyldimethylsilyl)oxidebis(dimethylphenylsilyl)oxidebis(dimethylphenylsilyl)ether
1,1,3,3-tetramethyl-1,3-diphenyldisiloxanBIS(DIMETHYLPHENYLSILYL) ETHERBIS(PHENYLDIMETHYLSILYL) OXIDENSC-967914-16-00-01475 (Beilstein Handbook Reference)BIS(DIMETHYLPHENYLSILYL) OXIDESYM-DIPHENYLTETRAMETHYLDISILOXANED-6190
Database identifiers
- CAS
56-33-7- PubChem CID
- 5945
- DTXSID
DTXSID8022537- ChEBI
CHEBI:34061- UNII
- 9X93JM12WM
- EC Number
- 200-265-4
- Nikkaji
- J87.551A
Properties
Computed structural propertiesFilling in
- Topological polar surface area
- 9.2 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 4
- Heavy atoms
- 19
- Formal charge
- 0
- Complexity
- 248
Experimental & physicochemical properties
Chemical ClassesMetals -> Metalloid Compounds (Silicon)
CosmeticsEmollient
SpringerMaterials Properties29Si nuclear magnetic resonance spectrum
Vapor Pressure0.000202 [mmHg]
Physical DescriptionClear colorless liquid; [Sigma-Aldrich MSDS]
Physicochemical properties
- Melting point
- -89 °C · -89°C
- Boiling point
- 155 °C · 155 °C
- Density
- 0.976 · 0.976
- refractive index
- 1.52 · 1.52
- Flash point
- 156 °C · 156°C
- storage temp.
- 2 · 2-8°C
- form
- liquid
- Specific Gravity
- 0.976 · 0.976
- color
- Colorless to Almost colorless
- Hydrolytic Sensitivity
- 1 · 1: no significant reaction with aqueous systems
- λmax
- 259 nm · 259nm(Cyclohexane)(lit.)
- InChI
- InChI=1S/C16H22OSi2/c1-18(2,15-11-7-5-8-12-15)17-19(3,4)16-13-9-6-10-14-16/h5-14H,1-4H3
- InChIKey
- YQJPWWLJDNCSCN-UHFFFAOYSA-N
- SMILES
- [Si](C)(C)(C1=CC=CC=C1)O[Si](C)(C)C1=CC=CC=C1
- CAS DataBase Reference
- 56 · 56-33-7(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 9 X93JM12WM · 9X93JM12WM
- EPA Substance Registry System
- 1 · Disiloxane, 1,1,3,3-tetramethyl-1,3-diphenyl- (56-33-7)
- Symbol(GHS)
- 7 · GHS07
- Signal word
- Warning
- Hazard statements
- 315 · H315-H319-H335
- Precautionary statements
- 280 · P280-P261
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 24 · 24/25-36-26
- RTECS
- 9236000 · JM9236000
- TSCA
- TSCA listed
- HS Code
- 29319090 · 29319090
- REACH Registrations
- Active
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 2.4% (1 of 42) of reports.
Warning
H315 (95.2%): Causes skin irritation [Warning Skin corrosion/irritation]
P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 42 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory InformationDisiloxane, 1,1,3,3-tetramethyl-1,3-diphenyl-: 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 SummaryA skin and strong eye irritant; [Sigma-Aldrich MSDS] See Octamethyltrisiloxane.
Hazard Classes and CategoriesSkin Irrit. 2 (95.2%)
Safety data
- tsca
- TSCA listed
- rtecs
- JM9236000
- hs_code
- 29319090
- risk_code
- 36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS07
- hazard_code
- Xi
- safety_code
- 24/25-36-26
- Hazard statements
- H315-H319-H335
- REACH Registrations
- Active
- Precautionary statements
- P280-P261
Chemistry & industry
Uses & manufacturing
Use ClassificationCosmetics -> Emollient
General Manufacturing InformationDisiloxane, 1,1,3,3-tetramethyl-1,3-diphenyl-: ACTIVE
Upstream & downstream products
Upstream raw materials
Downstream products
Additional notes
DefinitionChEBI: 1,3-diphenyltetramethyldisiloxane is an organosiloxane.
Related reactions
2 records
Compound notes
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