2-(methyldiphenylsilyl)ethan-1-ol

• ChemBase ID: 149545
• Molecular Formular: C15H18OSi
• Molecular Mass: 242.38832
• Monoisotopic Mass: 242.11269173
• SMILES: C[Si](CCO)(c1ccccc1)c1ccccc1
• Canonical SMILES: OCC[Si](c1ccccc1)(c1ccccc1)C
• InChI: InChI=1S/C15H18OSi/c1-17(13-12-16,14-8-4-2-5-9-14)15-10-6-3-7-11-15/h2-11,16H,12-13H2,1H3
• InChIKey: RYVPOJDQPLVTLT-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: 2-(methyldiphenylsilyl)ethan-1-ol
• IUPAC Traditional name: 2-(methyldiphenylsilyl)ethanol
• Synonyms: (2-Hydroxyethyl)diphenylmethylsilane; 2-(Diphenylmethylsilyl)ethanol; 2-(Methyldiphenylsilyl)ethanol; (2-羟乙基)二苯基甲基硅烷; 二苯基甲基羟乙基硅烷; 2-(甲基二苯基硅基)乙醇

Database IDs

• CAS Number: 40438-48-0
• EC Number: 254-919-9
• MDL Number: MFCD00042928
• Beilstein Number: 4428743
• PubChem SID: 24866996; 162243710; 24862659
• PubChem CID: 170302

CALCULATED PROPERTIES

• Acid pKa: 15.511718
• H Acceptors: 1
• H Donor: 1
• LogD (pH = 5.5): 3.9952
• LogD (pH = 7.4): 3.9952
• Log P: 3.9952
• Molar Refractivity: 68.5423 cm^3
• Polarizability: 29.042253 Å^3
• Polar Surface Area: 20.23 Å^2
• Rotatable Bonds: 4
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Boiling Point: 152 °C/0.2 mmHg(lit.)
• Flash Point: 110 °C; 230 °F
• Density: 1.063 g/mL at 25 °C(lit.)
• Refractive Index: n20/D 1.580; n20/D 1.580(lit.)

Safety Information

• German water hazard class: 3
• Personal Protective Equipment: Eyeshields, Gloves

Product Information

• Purity: ≥98.0% (GC); 99%
• Grade: purum
• Linear Formula: CH3Si(C6H5)2CH2CH2OH

DETAILS

Sigma Aldrich - 366498

Packaging
5 g in glass bottle

Sigma Aldrich - 43122

Other Notes
Protecting group for internucleotidic phosphates in oligonucleotide synthesis.; The 2-(diphenylmethylsilyl)ethyl group is less labile than the 2-(TMS)ethyl group, is easily introduced and selectively removed1,2