Basic information
- Name:
Acetic acid,2-(trimethylsilyl)-, 1,1-dimethylethyl ester
- CAS No.:
41108-81-0
- Molecular Structure:

- Formula:
- C9H20O2Si
- Molecular Weight:
- 188.34
- Synonyms:
- Aceticacid, (trimethylsilyl)-, 1,1-dimethylethyl ester (9CI);1,1-Dimethylethyl(trimethylsilyl)acetate;NSC 237636;tert-Butyl (trimethylsilyl)acetate;tert-Butyl 2-(trimethylsilyl)acetate;tert-Butyl a-(trimethylsilyl)acetate;
- EINECS:
- 255-222-2
- Density:
- 0.87 g/cm3
- Boiling Point:
- 177 °C at 760 mmHg
- Flash Point:
- 54.2 °C
- Risk Codes:
- 10
- Safety Description:
- 23-24/25 Details
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Specification
The Acetic acid,2-(trimethylsilyl)-, 1,1-dimethylethyl ester, with the CAS registry number 41108-81-0, is also known as 1,1-Dimethylethyl trimethylsilylacetate. It belongs to the product categories of C8 to C9; Carbonyl Compounds; Esters. Its EINECS number is 255-222-2. This chemical's molecular formula is C9H20O2Si and molecular weight is 188.34. What's more, its systematic name is tert-butyl (trimethylsilyl)acetate.
Physical properties of Acetic acid,2-(trimethylsilyl)-, 1,1-dimethylethyl ester are: (1)ACD/LogP: 2.96; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.95; (4)ACD/LogD (pH 7.4): 2.95; (5)ACD/BCF (pH 5.5): 103.66; (6)ACD/BCF (pH 7.4): 103.66; (7)ACD/KOC (pH 5.5): 964.7; (8)ACD/KOC (pH 7.4): 964.7; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 4; (12)Polar Surface Area: 26.3 Å2; (13)Index of Refraction: 1.415; (14)Molar Refractivity: 54.2 cm3; (15)Molar Volume: 216.3 cm3; (16)Polarizability: 21.48×10-24 cm3; (17)Surface Tension: 22.1 dyne/cm; (18)Density: 0.87 g/cm3; (19)Flash Point: 54.2 °C; (20)Enthalpy of Vaporization: 41.34 kJ/mol; (21)Boiling Point: 177 °C at 760 mmHg; (22)Vapour Pressure: 1.06 mmHg at 25°C.
Preparation: this chemical can be prepared by 1,1-dimethylethyl trimethylsilylacetate and (3S,5S)-3,5-diacetoxy-cyclohexan-1-one at the temperature of -70 °C. This reaction will need reagent LDA and solvent tetrahydrofuran with the reaction time of 2 hours. The yield is about 77%.
-, 1,1-dimethylethyl ester(2).jpg)
When you are using this chemical, please be cautious about it as the following:
It is flammable. You should not breathe gas/fumes/vapour/spray (appropriate wording to be specified by the manufacturer). What's more, you should avoid contact with skin and eyes.
You can still convert the following datas into molecular structure:
(1)Canonical SMILES: O=C(OC(C)(C)C)C[Si](C)(C)C
(2)InChI: InChI=1/C9H20O2Si/c1-9(2,3)11-8(10)7-12(4,5)6/h7H2,1-6H3
(3)InChIKey: HOHBQWITMXOSOW-UHFFFAOYAC

