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01095

Sigma-Aldrich

Bis(trimethylsilyl) acetylenedicarboxylate

≥98.0%

Synonym(s):

Bis(trimethylsilyl) 2-butynedioate

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About This Item

Empirical Formula (Hill Notation):
C10H18O4Si2
CAS Number:
76734-92-4
Molecular Weight:
258.42
Beilstein:
4680184
MDL number:
MFCD00009841
UNSPSC Code:
12352100
PubChem Substance ID:
329747212

Assay

≥98.0%

form

liquid

refractive index

n20/D 1.439 (lit.)
n20/D 1.439

bp

94 °C/0.005 mmHg (lit.)

density

0.999 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

C[Si](C)(C)OC(=O)C#CC(=O)O[Si](C)(C)C

InChI

1S/C10H18O4Si2/c1-15(2,3)13-9(11)7-8-10(12)14-16(4,5)6/h1-6H3

InChI key

RYHMNBZWRLSKHY-UHFFFAOYSA-N

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Application

Versatile synthetic intermediate with several advantages (e.g. mild cleavage of the TMS-group)

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

136.4 °F - closed cup

Flash Point(C)

58 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
1170293V
1170293
39375/1
039375/1

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