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3,5-bis[(Dimethylsilyl)-1,1,7,7-tetramethyl-3,5-diphenyl-tetrasiloxane

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Formula: C20H34O5Si6
CAS: 66817-59-2
search Element: dimethylsilyl tetrasiloxane tetramethyl diphenyl
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Identification

Structural Formula
3,5-bis[(Dimethylsilyl)-1,1,7,7-tetramethyl-3,5-diphenyl-tetrasiloxane
CAS:
66817-59-2
EINECS:
Molecular Formula:
C20H34O5Si6
MDL:
MFCD00054790
Synonym:
1,3-diphenyltetrakis(dimethylsiloxy)disiloxane ; 3,5-bis[(dimethylsilyl)oxy]-1,1,7,7-tetramethyl-3,5-diphenyltetrasiloxane ; tetrasiloxane,3,5-bis[(dimethylsilyl)oxy]-1,1,7,- 7-tetramethyl-3,5-diphenyl- ; 1,3-diphenyl-1,1,3,3-tetrakis(dimethylsiloxy)disiloxane ; tetrasiloxane, 3,5-bis((dimethylsilyl)oxy)-1,1,7,7-tetramethyl-3,5-diphenyl- ; 3,5-bis[(dimethylsilyl)-1,1,7,7-tetramethyl-3,5-diphenyl-tetrasiloxan ; ps 129.8 (siloxane) ; d 6170 ; 1,3-diphenyl-1,1,3,3-tetrakis(dimethylsiloxy)silane




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Properties for 3,5-bis[(Dimethylsilyl)-1,1,7,7-tetramethyl-3,5-diphenyl-tetrasiloxane

Molecular Weight:
522.994 g·mol−1
Melting point:
< 0 °C
Boiling point:
418.203 °C at 760 mmHg
Flash point:
206.722 °C
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Hazard Statements

GHS07

GHS03
Harmful
  • Acute toxicity (oral, dermal, inhalation), category 4
  • Skin irritation, categories 2, 3
  • Eye irritation, category 2A
  • Skin sensitization, category 1
  • Specific target organ toxicity following single exposure, category 3
    - Respiratory tract irritation
    - Narcotic effects
    • Not used
  • with the "skull and crossbones" pictogram
  • for skin or eye irritation if:
  • the "corrosion" pictogram also appears
  • the "health hazard" pictogram is used to indicate respiratory sensitization

Safety & Transport Information

Risk Codes:
R36/37/38 - Irritating to eyes, respiratory system and skin
Safety Codes:
S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection
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Alternative Distributors of [3,5-bis[(Dimethylsilyl)-1,1,7,7-tetramethyl-3,5-diphenyl-tetrasiloxane]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

Wuhan Kemi-Works Chemical Co., Ltd.

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