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Key Documents

8.18804

Sigma-Aldrich

Trimethyl orthoacetate

for synthesis

Synonym(s):

Trimethyl orthoacetate, 1,1,1-Trimethoxyethane, Orthoacetic acid trimethyl ester

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About This Item

Linear Formula:
CH3C(OCH3)3
CAS Number:
1445-45-0
Molecular Weight:
120.15
MDL number:
MFCD00008477
UNSPSC Code:
12352112
EC Index Number:
215-892-9
NACRES:
NA.22

vapor pressure

20 hPa ( 20 °C)

Quality Level

200

assay

≥98.0% (GC)

form

liquid

potency

>2000 mg/kg LD50, oral (Rat)

bp

108 °C/1013 hPa

transition temp

flash point 15 °C

density

0.96 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C5H12O3/c1-5(6-2,7-3)8-4/h1-4H3

InChI key

HDPNBNXLBDFELL-UHFFFAOYSA-N

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.956 - 0.958
Identity (IR): passes test

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Sens. 1B

Storage Class

3 - Flammable liquids

wgk_germany

WGK 1

flash_point_f

55.4 °F - closed cup

flash_point_c

13 °C - closed cup

Certificates of Analysis (COA)

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