ChemicalBook > CAS DataBase List > TRIS(TRIMETHYLSILYL)PHOSPHITE

TRIS(TRIMETHYLSILYL)PHOSPHITE

Product Name: TRIS(TRIMETHYLSILYL)PHOSPHITE
CAS No.: 1795-31-9
Chemical Name: TRIS(TRIMETHYLSILYL)PHOSPHITE
Synonyms: DK604;93412-5ML;Trimethylsilanol phosphite;tritrimethylsilyl phosphite;Tris(trimethylsily)phosphite;ris(trimethylsilyl)phosphite;TRIS(TRIMETHYLSILYL)PHOSPHITE;Tris(trimethylsiloxy)phosphine;Tris(trimethylsilyl)Phosphite>Phosphorousacidtrimethylsilylester
CBNumber: CB6112770
Molecular Formula: C9H27O3PSi3
Formula Weight: 298.54
MOL File: 1795-31-9.mol

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TRIS(TRIMETHYLSILYL)PHOSPHITE Property

Boiling point:: 78-81 °C/8 mmHg (lit.)
Density: 0.893 g/mL at 25 °C (lit.)
refractive index: n20/D 1.409(lit.)
Flash point:: >230 °F
storage temp.: RT, stored under nitrogen
form: Liquid
Specific Gravity: 0.893
color: Clear colorless
Water Solubility: Sparingly soluble in water.
Sensitive: Air & Moisture Sensitive
Hydrolytic Sensitivity: 8: reacts rapidly with moisture, water, protic solvents
BRN: 2043814
InChI: InChI=1S/C9H27O3PSi3/c1-14(2,3)10-13(11-15(4,5)6)12-16(7,8)9/h1-9H3
InChIKey: VMZOBROUFBEGAR-UHFFFAOYSA-N
SMILES: [Si](C)(C)(OP(O[Si](C)(C)C)O[Si](C)(C)C)C
CAS DataBase Reference: 1795-31-9(CAS DataBase Reference)

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Safety

Hazard Codes: Xi
Risk Statements: 36/38
Safety Statements: 26-36
RIDADR: 1760
WGK Germany: 3
F: 10-21
TSCA: No
HazardClass: 8
PackingGroup: III
HS Code: 29319000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P337+P313IF eye irritation persists: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 93412
Product name: Tris(trimethylsilyl) phosphite
Purity: ≥95.0% (GC)
Packaging: 5ml
Price: $221
Updated: 2025/07/31

Sigma-Aldrich

Product number: 93412
Product name: Tris(trimethylsilyl) phosphite
Purity: ≥95.0% (GC)
Packaging: 25ml
Price: $576.65
Updated: 2025/07/31

TCI Chemical

Product number: P1217
Product name: Tris(trimethylsilyl) Phosphite
Purity: >95.0%(NMR)
Packaging: 5mL
Price: $69
Updated: 2025/07/31

TCI Chemical

Product number: P1217
Product name: Tris(trimethylsilyl) Phosphite
Purity: >95.0%(NMR)
Packaging: 25mL
Price: $274
Updated: 2025/07/31

Sigma-Aldrich

Product number: 93412
Product name: Tris(trimethylsilyl) phosphite
Purity: ≥95.0% (GC)
Packaging: 100ml
Price: $1400
Updated: 2025/07/31

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TRIS(TRIMETHYLSILYL)PHOSPHITE Chemical Properties,Usage,Production

Uses

Tris(trimethylsilyl) Phosphite is used in the studies of bisphosphonic acids as effective inhibitor of glutamine synthetase, a promising approach for the discovery of novel drugs against tuberculosis. It also acts as a reagent in the preparation of substituted calix[4]arenes bearing one or two α-hydroxymethylphosphonic acid fragments at upper rim of macrocycle as inhibitors of glutathione S-transferase in vitro.

Preparation

By silylation of anhydrous phosphorous acid (dried by repeated azeotropic evaporation of a solution in THF with dry benzene) with excess Chlorotrimethylsilane and excess Triethylamine in dimethoxyethane, toluene, or Et2O-THF, followed by evaporation of the solvent and vacuum distillation of the residue. The residue, which contains a mixture of tris(trimethylsilyl) phosphite and bis(trimethylsilyl) phosphonate [HP(O)(OTMS)2], can also be heated with sodium (140 °C, 13-22 h), followed by vacuum distillation to obtain pure tris(trimethylsilyl) phosphite.

storage

Extremely hygroscopic; use in a fume hood.

TRIS(TRIMETHYLSILYL)PHOSPHITE Preparation Products And Raw materials

Raw materials

Preparation Products

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TRIS(TRIMETHYLSILYL)PHOSPHITE Suppliers

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View Lastest Price from TRIS(TRIMETHYLSILYL)PHOSPHITE manufacturers

ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

Product: Tris(trimethylsilyl) Phosphite 1795-31-9
Price: US $1.10-9.90/kg
Min. Order: 1kg
Purity: 99%min
Supply Ability: 100kg
Release date: 2025-08-18

WUHAN FORTUNA CHEMICAL CO., LTD

Product: Tris(trimethylsilyl) Phosphite 1795-31-9
Price: US $0.00/KG
Min. Order: 1KG
Purity: 98%min
Supply Ability: 30tons/month
Release date: 2023-02-21

Hebei Yanxi Chemical Co., Ltd.

Product: TRIS(TRIMETHYLSILYL)PHOSPHITE 1795-31-9
Price: US $10.00-1.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 10 tons
Release date: 2023-10-16

1795-31-9, TRIS(TRIMETHYLSILYL)PHOSPHITERelated Search:

Tris(trimethylsilyl)phosphate Tris(triphenylphosphine)ruthenium(II) chloride Tris(4-nitrophenyl)amine Tris(hydroxymethyl)aminomethane acetate salt Tris(trimethylsilyl) borate TRIS(TERT-BUTYLDIMETHYLSILYL) PHOSPHITE BIS(TRIMETHYLSILYLOXY)-PHOSPHINE BIS(TRIMETHYLSILYL) PHOSPHITE TRIS(TRIMETHYLSILYL)PHOSPHITE MONO-(TRIMETHYLSILYL)PHOSPHITE

Phosphorous acid, tristrimethylsilyl

Tris(trimethylsily)phosphite

TRIS(TRIMETHYLSILYL)PHOSPHITE

PHOSPHOROUS ACID TRIS(TRIMETHYLSILYL) ESTER

Phosphorousacidtrimethylsilylester

TRIS(TRIMETHYLSILYL) PHOSPHITE 95%

TRIS(TRIMETHYLSILYL)PHOSPHITE 97+%

Phosphorous acid tri(trimethylsilyl) ester

Tris(trimethylsiloxy)phosphine

Tris(trimethylsilyl) phosphite >=95.0% (GC)

Trimethylsilanol phosphite

Silanol,1,1,1-trimethyl-,1,1',1''-phosphite

Tris(trimethylsilyl)Phosphite&gt

ris(trimethylsilyl)phosphite

Triphosphite (trimethylsilica) vinegar

Tri (trimethylsilicon) phosphite ester

DK604

Tris(trimethylsilyl) phosphite (TMSPi)

tritrimethylsilyl phosphite

93412-5ML

1795-31-9

C9H27O3PSi

CH33SiO3P

C9H27O4PSi

C9H27O3P

C9H27O3PSi3

Building Blocks

Organic Building Blocks

Organic Phosphates/Phosphites

Phosphorus Compounds

Si-O Compounds

Si (Classes of Silicon Compounds)

Silicon Compounds (for Synthesis)

Silyl Esters

Si (Classes of Silicon Compounds)

Silicon Compounds (for Synthesis)

Silyl Esters

Si-O Compounds

Synthetic Organic Chemistry