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1-(Trimethylsiloxy)cyclopentene

1-(Trimethylsiloxy)cyclopentene
1-(Trimethylsiloxy)cyclopentene structure
CAS No.
19980-43-9
Chemical Name:
1-(Trimethylsiloxy)cyclopentene
Synonyms
1-(TRIMETHYLSILOXY)CYCLOPENTENE;TRIMETHYLSILYLOXY-1-CYCLOPENTENE;1-Trimethylsiloxy-1-cyclopentene;(Cyclopentenyloxy)trimethylsylane;1-(TRIMETHYLSILYLOXY)CYCLOPENTENE;(CYCLOPENTENYLOXY)TRIMETHYLSILANE;1-(Trimethylsiloxy)-1-cyclopentene;(1-CYCLOPENTENYLOXY)TRIMETHYLSILANE;Trimethyl(1-cyclopentenyloxy)silane;1-(Trimethylsiloxy)cyclopentene 97%
CBNumber:
CB5278075
Molecular Formula:
C8H16OSi
Formula Weight:
156.3
MOL File:
19980-43-9.mol

1-(Trimethylsiloxy)cyclopentene Properties

Boiling point:
45 °C11 mm Hg(lit.)
Density 
0.878 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.440(lit.)
Flash point:
101 °F
storage temp. 
−20°C
Specific Gravity
0.878
BRN 
385956
CAS DataBase Reference
19980-43-9(CAS DataBase Reference)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  10-36/37/38
Safety Statements  26-36
RIDADR  UN 1993 3/PG 3
WGK Germany  3
10-21
TSCA  Yes
HazardClass  3.2
PackingGroup  III
HS Code  29319090
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H226 Flammable liquid and vapour Flammable liquids Category 3 Warning
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

1-(Trimethylsiloxy)cyclopentene price More Price(2)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 283126 1-(Trimethylsiloxy)cyclopentene 97% 19980-43-9 5g $95.7 2018-11-13 Buy
TCI Chemical T1648 1-(Trimethylsilyloxy)cyclopentene >97.0%(GC) 19980-43-9 10mL $154 2018-11-22 Buy

1-(Trimethylsiloxy)cyclopentene Chemical Properties,Uses,Production

Chemical Properties

Clear light yellow liquid

Purification Methods

If too impure as seen by the NMR spectrum, then dissolve it in 10 volumes of pentane, shake with cold NaHCO3 (3 x 500mL), then 1.5M HCl (200mL) and aqueous NaHCO3 (200mL) again, dry (Na2SO4), filter, evaporate and distil it through a short Vigreux column (p 11). 1H NMR: (CDCl3) : 0.21 (s, 9H), 1.55 (m, 2H), 1.69 (m, 2H), 2.05 (br d, 4H) and 4.88 (br s, 1H). GLPC in a 6ft x 1/8inch with 3% SP2100 on 100-120 mesh Supelcoport column should give one peak. Store dry. [For the cyclohexene analogue see Varghese et al. Org Synth Coll Vol VIII 460 1993.]

1-(Trimethylsiloxy)cyclopentene Preparation Products And Raw materials

Raw materials

Preparation Products


1-(Trimethylsiloxy)cyclopentene Suppliers

Global( 67)Suppliers
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1-(Trimethylsiloxy)cyclopentene Spectrum


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