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Tris(trimethylsilyl)phosphate/TMSP CAS 10497-05-9

Tris(trimethylsilyl)phosphate is an organophosphorus compound with the chemical formula (CH₃)₃SiO)₃PO. It appears as a colorless to pale yellow liquid with a faint, characteristic odor. Insoluble in water, but soluble in organic solvents such as tetrahydrofuran, toluene, dichloromethane, and hexane. Commonly used as a reagent in organic synthesis for the phosphorylation of nucleosides, alcohols, and other substrates. Also functions as a flame retardant additive in lithium-ion battery electrolytes, as a precursor for the preparation of phosphate-based materials, and as a silylating agent in various chemical transformations. Moisture-sensitive; should be stored in tightly sealed containers away from water and strong oxidizing agents.
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  • 10497-05-9

  • Boss Chemical

  • 10497-05-9

Tris(trimethylsilyl)phosphate Basic information

Product Name:

Tris(trimethylsilyl)phosphate

CAS:

10497-05-9

MF:

C9H27O4PSi3

MW:

314.54

EINECS:

234-028-1

Mol File:

10497-05-9.mol

Tris(trimethylsilyl)phosphate Chemical Properties

Melting point

3-4 °C (lit.)

Boiling point

228-229 °C/720 mmHg (lit.)

density

0.945 g/mL at 25 °C (lit.)

vapor pressure

23.3hPa at 20℃

refractive index

n20/D 1.409(lit.)

Fp

76 °F

storage temp.

under inert gas (nitrogen or Argon) at 2-8°C

pka

23-25(at 25℃)

form

liquid

color

Colorless to Light yellow to Light orange

Specific Gravity

0.959

Water Solubility

935.5μg/L at 20℃

Hydrolytic Sensitivity

8: reacts rapidly with moisture, water, protic solvents

BRN

1794624

InChI

1S/C9H27O4PSi3/c1-15(2,3)11-14(10,12-16(4,5)6)13-17(7,8)9/h1-9H3

InChIKey

QJMMCGKXBZVAEI-UHFFFAOYSA-N

SMILES

C[Si](C)(C)OP(=O)(O[Si](C)(C)C)O[Si](C)(C)C

LogP

4.72 at 20℃

CAS DataBase Reference

10497-05-9(CAS DataBase Reference)

EPA Substance Registry System

Silanol, trimethyl-, phosphate (3:1) (10497-05-9)

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