tetramethoxygermane

• ChemBase ID: 149866
• Molecular Formular: C4H12GeO4
• Molecular Mass: 196.77568
• Monoisotopic Mass: 197.99473586
• SMILES: CO[Ge](OC)(OC)OC
• Canonical SMILES: CO[Ge](OC)(OC)OC
• InChI: InChI=1S/C4H12GeO4/c1-6-5(7-2,8-3)9-4/h1-4H3
• InChIKey: ACOVYJCRYLWRLR-UHFFFAOYSA-N

NAMES AND DATABASE IDS

Names

• IUPAC name: tetramethoxygermane
• IUPAC Traditional name: tetramethoxygermane
• Synonyms: Germanium(IV) methoxide; Methyl germanate(IV); Tetramethoxygermanium; 四甲氧基锗; 甲氧基锗; 甲醇锗(IV)

Database IDs

• CAS Number: 992-91-6
• MDL Number: MFCD00014881
• PubChem SID: 24864668; 162244028
• PubChem CID: 16684449

CALCULATED PROPERTIES

• H Acceptors: 4
• H Donor: 0
• LogD (pH = 5.5): 0.7668
• LogD (pH = 7.4): 0.7668
• Log P: 0.7668
• Molar Refractivity: 28.1876 cm^3
• Polarizability: 15.357934 Å^3
• Polar Surface Area: 36.92 Å^2
• Rotatable Bonds: 4
• Lipinski's Rule of Five: true

PROPERTIES

Physical Property

• Apperance: liquid
• Melting Point: -18 °C (dec.)(lit.); -18°C
• Boiling Point: 145°C; 66-67 °C/36 mmHg(lit.)
• Flash Point: 105.8 °F; 40°C(105°F); 41 °C
• Density: 1.325 g/mL at 25 °C(lit.); 1.3254^2^0
• Refractive Index: 1.4015; n20/D 1.399(lit.)

Safety Information

• Storage Warning: Moisture Sensitive
• European Hazard Symbols: Toxic (T)
• UN Number: 1993; UN2929
• German water hazard class: 3
• Hazard Class: 3; 6.1
• Packing Group: 3; II
• Risk Statements: 10-23/24/25-36/37/38-68/20/21/22; 10-23-36/37/38
• Safety Statements: 26-36/37-45
• TSCA Listed: 否
• GHS Pictograms: GHS02; GHS06; GHS08
• GHS Signal Word: Danger
• GHS Hazard statements: H226-H301-H311-H315-H319-H331-H335-H371; H330-H315-H319-H335-H226
• GHS Precautionary statements: P260-P280-P301 + P310-P305 + P351 + P338-P311; P280H-P305+P351+P338-P304+P340-P310
• RID/ADR: UN 1993 3/PG 3

Product Information

• Purity: 98%
• Impurities: ≤5% methyl alcohol
• Linear Formula: Ge(OCH3)4

DETAILS

Sigma Aldrich - 396362

Packaging
1, 5 g in glass bottle
Application

• Used as a promoting agent for vanadyl pyrophosphate-catalyzed oxidation reactions1
• Used to prepare sol-gel hybrid organic-inorganic coatings for capillary microextension and gas chromatography (GC)2
• For preparation of metal(IV) β-cyclodextrin bucket wheel complex3
• Preparation of gold nanoparticle templated germania nanoshells4
Sol-gel intermediate in the formation of GeS2 and IR-transparent optics.