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1-(Trimethylsiloxy)cyclopentene

1-(Trimethylsiloxy)cyclopentene Structure
1-(Trimethylsiloxy)cyclopentene structure
CAS No.
19980-43-9
Chemical Name:
1-(Trimethylsiloxy)cyclopentene
Synonyms
(cyclopent-1-en-1-yloxy)triMethylsilane;1-(TRIMETHYLSILYLOXY)CYCLOPENTENE;(CYCLOPENTENYLOXY)TRIMETHYLSILANE;DK654;DKFELEX0164;1-(TRIMETHYLSILOXY)CYCLOPENTENE;1-Trimethylsiloxy-1-cyclopentene;TRIMETHYLSILYLOXY-1-CYCLOPENTENE;(Cyclopentenyloxy)trimethylsylane;1-(Trimethylsiloxy)-1-cyclopentene
CBNumber:
CB5278075
Molecular Formula:
C8H16OSi
Molecular Weight:
156.3
MDL Number:
MFCD00001395
MOL File:
19980-43-9.mol
MSDS File:
SDS
Last updated:2026-05-28 02:11:26
Product description Number Pack Size Price
1-(Trimethylsiloxy)cyclopentene 97% 283126 5g $139
1-(Trimethylsilyloxy)cyclopentene >97.0%(GC) T1648 10mL $165
1-(Trimethylsilyloxy)cyclopentene Asreported 291776 5g $342
1-(Trimethylsilyloxy)cyclopentene Asreported 291776 10g $480
1-(Trimethylsilyloxy)cyclopentene Asreported 291776 25g $712
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1-(Trimethylsiloxy)cyclopentene Properties

Boiling point 45 °C/11 mmHg (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
form clear liquid
color Colorless to Light yellow to Light orange
Specific Gravity 0.878
Hydrolytic Sensitivity 7: reacts slowly with moisture/water
BRN 385956
InChI 1S/C8H16OSi/c1-10(2,3)9-8-6-4-5-7-8/h6H,4-5,7H2,1-3H3
InChIKey UBMYYGXGMPGCBO-UHFFFAOYSA-N
SMILES C[Si](C)(C)OC1=CCCC1
CAS DataBase Reference 19980-43-9(CAS DataBase Reference)
EPA Substance Registry System Silane, (1-cyclopenten-1-yloxy)trimethyl- (19980-43-9)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Flame (GHS02)Exclamation Mark (GHS07)
GHS02,GHS07
Signal word  Warning
Hazard statements  H226-H315-H319-H335
Precautionary statements  P210-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  10-36/37/38
Safety Statements  26-36
RIDADR  UN 1993 3/PG 3
WGK Germany  3
F  10-21
TSCA  TSCA listed
HazardClass  3.2
PackingGroup  III
HS Code  29319090
Storage Class 3 - Flammable liquids
Hazard Classifications Eye Irrit. 2
Flam. Liq. 3
Skin Irrit. 2
STOT SE 3
Limited Quantities 5.0 L (1.3 gallons) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
NFPA 704
3
2 0

1-(Trimethylsiloxy)cyclopentene price More Price(29)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 283126 1-(Trimethylsiloxy)cyclopentene 97% 19980-43-9 5g $139 2026-04-30 Buy
TCI Chemical T1648 1-(Trimethylsilyloxy)cyclopentene >97.0%(GC) 19980-43-9 10mL $165 2026-04-30 Buy
Usbiological 291776 1-(Trimethylsilyloxy)cyclopentene Asreported 19980-43-9 5g $342 2026-06-03 Buy
Usbiological 291776 1-(Trimethylsilyloxy)cyclopentene Asreported 19980-43-9 10g $480 2026-06-03 Buy
Usbiological 291776 1-(Trimethylsilyloxy)cyclopentene Asreported 19980-43-9 25g $712 2026-06-03 Buy
Product number Packaging Price Buy
283126 5g $139 Buy
T1648 10mL $165 Buy
291776 5g $342 Buy
291776 10g $480 Buy
291776 25g $712 Buy

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

Chemical Properties

Clear light yellow liquid

Uses

1-(Trimethylsiloxy)cyclopentene may be used in chemical synthesis studies.

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 synthesis

79-36-7
120-92-3
19980-43-9
Synthesis of 1-(Trimethylsiloxy)cyclopentene from Dichloroacetyl chloride and Cyclopentanone

1-(Trimethylsiloxy)cyclopentene Preparation Products And Raw materials

Raw materials

1-Cyclopenten-1-ol Ethyl (trimethylsilyl)acetate 1-METHOXY-1-TRIMETHYLSILYLOXYPROPENE TRIMETHYLSILYL TRIFLUOROACETATE Hexamethyldisilane
1,1,1-TRIMETHYL-2,2,2-TRIPHENYLDISILANE N-(Trimethylsilyl)acetamide Bromotrimethylsilane Allyltrimethylsilane Cyclopentanone

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Preparation Products

1-TRIMETHYLSILYL-2-PYRROLIDINONE 2-Oxazolidone

1-(Trimethylsiloxy)cyclopentene Suppliers

Global( 123)Suppliers
Supplier Tel Email Country ProdList Advantage
Shanghai Daken Advanced Materials Co.,Ltd 		+86-2158073036 info@dakenam.com China 14026 58
Shenzhen Nexconn Pharmatechs Ltd 		+86-755-89396905 +86-15013857715 admin@nexconn.com China 10403 58
CONIER CHEM AND PHARMA LIMITED 		+8618523575427 sales@conier.com China 49979 58
career henan chemical co 		+86-0371-86658258 +8613203830695 factory@coreychem.com China 29792 58
Hefei TNJ Chemical Industry Co.,Ltd. 		+86-0551-65418671 +8618949823763 sales@tnjchem.com China 34563 58
Dayang Chem (Hangzhou) Co.,Ltd. 		+86-0571-88938639 +8617705817739 info@dycnchem.com China 52704 58
PT CHEM GROUP LIMITED 		+86-85511178; peter68@ptchemgroup.com China 35425 58
ShenZhen Trendseen Biological Technology Co.,Ltd. 		13417589054 trendseenbio@gmail.com China 11680 58
GIHI CHEMICALS CO.,LIMITED 		+86-571-86217390; +8618058761490 info@gihichemicals.com China 49897 58
Shanghai Acmec Biochemical Technology Co., Ltd. 		+86-18621343501; +undefined18621343501 product@acmec-e.com China 33324 58
Supplier Advantage
Shanghai Daken Advanced Materials Co.,Ltd 		58
Shenzhen Nexconn Pharmatechs Ltd 		58
CONIER CHEM AND PHARMA LIMITED 		58
career henan chemical co 		58
Hefei TNJ Chemical Industry Co.,Ltd. 		58
Dayang Chem (Hangzhou) Co.,Ltd. 		58
PT CHEM GROUP LIMITED 		58
ShenZhen Trendseen Biological Technology Co.,Ltd. 		58
GIHI CHEMICALS CO.,LIMITED 		58
Shanghai Acmec Biochemical Technology Co., Ltd. 		58

View Lastest Price from 1-(Trimethylsiloxy)cyclopentene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-trimethylsiloxycyclopentene pictures 2020-02-01 1-trimethylsiloxycyclopentene
19980-43-9
 $1.00 1KG Min98% HPLC Career Henan Chemical Co

1-(Trimethylsiloxy)cyclopentene Spectrum

1-(Trimethylsiloxy)cyclopentene(19980-43-9)MS1-(Trimethylsiloxy)cyclopentene(19980-43-9)1HNMR1-(Trimethylsiloxy)cyclopentene(19980-43-9)13CNMR1-(Trimethylsiloxy)cyclopentene(19980-43-9)IR11-(Trimethylsiloxy)cyclopentene(19980-43-9)Raman

19980-43-9(1-(Trimethylsiloxy)cyclopentene)Related Search:

Hydroxypropyl methyl cellulose Azidotrimethylsilane Methyltris(methylethylketoxime)silane Lithium bis(trimethylsilyl)amide Methyl cyclopentenolone
Ethoxytrimethylsilane Trimethyl(propoxy)silane METHOXYTRIMETHYLSILANE Cyclopentene 1-Pentene
ISOPROPENYLOXYTRIMETHYLSILANE DIMETHYLETHOXYSILANE VINYLOXYTRIMETHYLSILANE Cyclopentanone cyclopentene
DIMETHYLMETHOXYSILANE Silane, methoxy- 1-(Trimethylsiloxy)cyclopentene

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CYCLOPENTANONE ENOL TRIMETHYL SILYL ETHER 1-(TRIMETHYLSILOXY)CYCLOPENTENE 1-(TRIMETHYLSILYLOXY)CYCLOPENTENE (1-CYCLOPENTENYLOXY)TRIMETHYLSILANE (1-cyclopenten-1-yloxy)trimethylsilane (Cyclopentenyloxy)trimethylsylane 1-(TRIMETHYLSILYLOXY)CYCLOPENTENE 97+% (1-Cyclopentenyl)(trimethylsilyl) ether 1-(Trimethylsiloxy)-1-cyclopentene 1-Cyclopentenyl(trimethylsilyl) ether 1-Trimethylsiloxy-1-cyclopentene Trimethyl(1-cyclopentenyloxy)silane Cyclopentene,1-[(triMethylsilyl)oxy]- 1-(Trimethylsiloxy)cyclopentene 97% cyclopenten-1-yloxy(trimethyl)silane TRIMETHYLSILYLOXY-1-CYCLOPENTENE 1-Cyclopentenyloxytrimethylsilane, Cyclopentanone enol trimethyl silyl ether (Cyclopentene oxygen group) trimethylsilane DK654 DKFELEX0164 (Cyclopent-1-en-1-yloxy)trimethylsilane - [C90347] (CYCLOPENTENYLOXY)TRIMETHYLSILANE (cyclopent-1-en-1-yloxy)triMethylsilane 19980-43-9 C5H7OSiCH33 Building Blocks Oxygen Compounds Organic Building Blocks Enol Ethers Silicon Compounds (for Synthesis) Si (Classes of Silicon Compounds) Monoalkoxysilanes Si-O Compounds Monoalkoxysilanes Si (Classes of Silicon Compounds) Silicon Compounds (for Synthesis) Si-O Compounds Synthetic Organic Chemistry