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Sigma-Aldrich

Trimethyl orthoformate

99%

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Synonym(s):
Trimethoxymethane
Linear Formula:
CH(OCH3)3
CAS Number:
Molecular Weight:
106.12
Beilstein:
969215
EC Number:
MDL number:
eCl@ss:
39021015
PubChem Substance ID:
NACRES:
NA.22

vapor density

3.67 (vs air)

Quality Level

vapor pressure

23.5 mmHg ( 20 °C)
40 mmHg ( 30 °C)
57 mmHg ( 40 °C)

Assay

99%

expl. lim.

5.1 %

refractive index

n20/D 1.379 (lit.)

bp

101-102 °C (lit.)

density

0.97 g/mL at 25 °C (lit.)

SMILES string

COC(OC)OC

InChI

1S/C4H10O3/c1-5-4(6-2)7-3/h4H,1-3H3

InChI key

PYOKUURKVVELLB-UHFFFAOYSA-N

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This Item
3054728.00885304050
Triethyl orthoformate anhydrous, 98%

Sigma-Aldrich

304050

Triethyl orthoformate

vapor pressure

23.5 mmHg ( 20 °C)

vapor pressure

23.5 mmHg ( 20 °C), 40 mmHg ( 30 °C), 57 mmHg ( 40 °C)

vapor pressure

10 hPa ( 7 °C)

vapor pressure

2.9 mmHg ( 20 °C)

assay

99%

assay

99.8%

assay

≥98.0% (GC)

assay

98%

expl. lim.

5.1 %

expl. lim.

5.1 %

expl. lim.

1.4-44.6 % (v/v)

expl. lim.

-

refractive index

n20/D 1.379 (lit.)

refractive index

n20/D 1.379 (lit.)

refractive index

-

refractive index

n20/D 1.391 (lit.)

bp

101-102 °C (lit.)

bp

101-102 °C (lit.)

bp

102 °C/1013 hPa

bp

146 °C (lit.)

General description

Trimethyl orthoformate is an effective solvent for thallium(III) nitrate-mediated oxidations. It undergoes acid catalyzed reaction with 6-(N-D-ribitylanilino) uracils to form 8-demethyl-8-hydroxy-5-deazariboflavins.

Application

Trimethyl orthoformate was used as dehydrating agent in the preparation of surface-modified colloidal silica nanoparticles.

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

55.4 °F - closed cup

Flash Point(C)

13 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Journal of biomedical materials research. Part A, 91(3), 824-833 (2008-12-04)
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