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CS-W001157 4
Total: USD 88.00

1,1,5,5-Tetramethyl-3,3-diphenyltrisiloxane

  • CAS No. 17875-55-7

  • Cat. No. CS-0186282
  • Purity97%(GC)
  • MDL No.MFCD00411646

*For research and further manufacturing use only, not for direct human use.

1,1,5,5-Tetramethyl-3,3-diphenyltrisiloxane|CS-0186282

Structure of 17875-55-7

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General Information

  • CAS No. 17875-55-7
  • Cat. No. CS-0186282
  • Purity 97%(GC)
  • MDL No. MFCD00411646
  • Storage 4°C
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₁₆H₂₄O₂Si₃
  • Molecular Weight 332.62
  • Synonym(s) Bis(dimethylsiloxy)diphenylsilane; 1,1,5,5-Tetramethyl-3,3-diphenyltrisiloxane
  • SMILES C[SiH](C)O[Si](C1=CC=CC=C1)(C2=CC=CC=C2)O[SiH](C)C

Description

This trisiloxane features a stable, sterically shielded backbone with four methyl groups and two phenyl rings flanking the central silicon atoms. It serves as a robust, moisture-tolerant silane for surface modification and polymer crosslinking applications.

Application

1,1,5,5-Tetramethyl-3,3-diphenyltrisiloxane serves as a stable, bench-friendly silylating agent that selectively protects alcohols and carboxylic acids under mild conditions. Its trialkylsilyl-triphenylsilyl architecture enables high functional group tolerance and facilitates subsequent deprotection or cross-coupling steps. The compound's low volatility and resistance to hydrolysis enhance handling safety and storage stability in synthetic workflows.

Safety Information

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GHS Pictogram :
GHS No : GHS07,GHS08,GHS09
Signal Word : Danger
UN#: 3082
Class : 9
Packing Group : Ⅲ
Hazard Statements : H302-H361-H372-H410
Precautionary Statements : P260-P264-P270-P273-P280-P330-P391-P405-P501

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Computational Chemistry Data

  • TPSA   18.46
  • LogP   2.243
  • H_Acceptors   2
  • H_Donors   0
  • Rotatable_Bonds   6

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