CAS No.542-92-7,1,3-Cyclopentadiene Suppliers

Products Categories

Pharmaceutical (42)
Organic Chemicals (14)
Others (6)
Reagent (3)
Materials (2)
(1)
Plant Extract (1)

Basic Information

Molecular Structure:
CAS No.:	542-92-7
Name:	1,3-Cyclopentadiene
Article Data:	461

Formula:	C₅H₆
Molecular Weight:	66.1026
Synonyms:	Cyclopentadiene;Pentole;Pyropentylene;R-Pentine;
EINECS:	208-835-4
Density:	0.878 g/cm³
Melting Point:	- 97.2 C
Boiling Point:	41.499 °C at 760 mmHg
Solubility:	10.3 mM at 25 °C (shake flask-UV spectrophotometry, Streitwieser and Nebenzahl, 1976)
Appearance:	colourless liquid
PSA:	0.00000
LogP:	1.50250

Synthetic route

: 142-29-0
cyclopentene

: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
With n-butyllithium; potassium 2-methylbutan-2-olate In hexane 1) r.t., 14 h, 2) reflux, 5 h;	100%
at 850℃; Erhitzen unter vermindertem Druck;
With chromium (III)-oxide-aluminium oxide contacts at 450 - 500℃;
With palladium at 180 - 200℃;

: 3559-74-8
trimethylsilylcyclopentadiene

: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
With trifluoroacetic acid at 60℃; for 3h; Heating;	100%
With potassium tert-butylate In N,N,N,N,N,N-hexamethylphosphoric triamide at 60℃; for 3h;	100%

: 73138-26-8
manganocene

: 124-38-9
carbon dioxide

: 109-89-7
diethylamine

A: Mn(O2CN(C2H5)2)2

B: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
In toluene under N2 or Ar;suspn. of Mn(cp)2 in toluene treated with stoicheiometric amt. of amine, clear soln, addn. of CO2, after 2 h no gas was uptaken; evapn.,;	A 99% B n/a

...Expand

: 16326-97-9, 16326-98-0, 59719-74-3
1,3-dihydroxycyclopentane

: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
With Nafion In water at 140℃; Temperature; Solvent; Reagent/catalyst;	99%
With H-USY zeolite In tetrahydrofuran at 249.84℃; Inert atmosphere;	93.8%

: 84651-76-3
(η-cyclopentadienyl)(η-cyclopentadiene)nickel tetrafluoroborate

: 603-36-1
triphenylantimony

A: 85836-36-8
[Ni(C5H5)(Sb(C6H5)3)2](1+)*BF4(1-)=[Ni(C5H5)(Sb(C6H5)3)2]BF4

B: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
In diethyl ether under Ar, Ni complex in ether mixed with stibane ligand (molar ratio 1:2), stirred for 5 h at room temp.; filtered, washed with ether, dried in vac., elem. anal.;	A 98% B n/a

...Expand

: vanadocene

: 546-67-8
lead(IV) tetraacetate

A: {(η5-cyclopentadienyl)vanadium diacetate}2

B: 301-04-2
lead acetate

C: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
In toluene molar ratio Cp2V/Pb-compound 1/1, sealed ampoule, 20°C, 48 h;	A 97% B n/a C 36.6%

...Expand

: 77-73-6, 933-60-8, 1755-01-7, 13257-74-4, 25850-35-5, 57429-84-2, 109428-68-4
dicyclopentadiene

: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
Heating;	96%
at 180℃;
In decalin at 180℃; Diels-Alder Cycloaddition; Inert atmosphere;

: 77-73-6, 933-60-8, 1755-01-7
bi(cyclopentadiene)

: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
at 160℃;	95%
at 350 - 400℃;	91%
at 210℃;	84.5%

: 79756-02-8, 79813-47-1
endo-4a-acetyl-2,3-dichloro-4a,5,8,8a-tetrahydro-5,8-methano-1,4-naphthoquinone

A: 542-92-7
cyclopenta-1,3-diene

: 79756-04-0
4-acetyl-6,7,7',8'-tetrachloro-3'aR*,9'bR*-dihydro-5,6',9'-trihydroxy-spiro<3H-benzofuran-2S*,5'(1'H)-cyclopenta<2>benzopyran>

Conditions

Conditions	Yield
In benzene-d6 at 80℃; for 6h; sealed n.m.r. sample tube;	A n/a B 95%

: 3048-65-5
bicyclo[4.3.0]nona-3,7-diene

: 77-73-6, 933-60-8, 1755-01-7, 13257-74-4, 25850-35-5, 57429-84-2, 109428-68-4
dicyclopentadiene

: 542-92-7
cyclopenta-1,3-diene

Conditions

Conditions	Yield
With tert-butylhydroquinone In diphenylether at 215℃; for 2.58333h; Product distribution / selectivity;	94.19%

Raw Materials

873-67-6

102-54-5

Downstream Products

91-20-3

95-13-6

497-36-9

Total:60 Page 1 of 2 1 2 Next>>

Post a RFQ

Cas No.:

Product Name:

Quantity:

Email:

Company name:

Valid Period:

Detailed Requirements:

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

What can I do for you?
Get Best Price

Get Best Price for 542-92-7

Consensus Reports

Reported in EPA TSCA Inventory.

Standards and Recommendations

OSHA PEL: TWA 75 ppm
ACGIH TLV: TWA 75 ppm
DFG MAK: 75 ppm (210 mg/m³)

Analytical Methods

For occupational chemical analysis use NIOSH: 1,3-Cyclopentadiene, 2523.

Specification

The Cyclopentadiene, with the CAS registry number 542-92-7,is also known as 1,3-Cyclopentadiene. It belongs to the product categories of Organic matters. This chemical's molecular formula is C₅H₆ and molecular weight is 66.10.Its EINECS number is 542-92-7. What's more,Its systematic name is Cyclopentadiene.It is a colourless liquid which is stable at room temperature and incompatible with oxidizing agents, acids and a wide variety of other compounds.It may form peroxides in storage.And it may undergo spontaneous polymerisation. It Decomposes on heating,mixtures with air are explosive.It is used for organic synthetic intermediates, and manufacturing pesticides.In addition, it is mainly used for resin industry, synthetic rubber, etc.

Physical properties about Cyclopentadiene are:
(1)ACD/LogP: 2.087; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 2.09; (4)ACD/LogD (pH 7.4): 2.09; (5)ACD/BCF (pH 5.5): 22.72; (6)ACD/BCF (pH 7.4): 22.72; (7)ACD/KOC (pH 5.5): 325.50; (8)ACD/KOC (pH 7.4): 325.50; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Index of Refraction: 1.503; (13)Molar Refractivity: 22.266 cm³; (14)Molar Volume: 75.303 cm³; (15)Surface Tension: 34.859001159668 dyne/cm; (16)Density: 0.878 g/cm³; (17)Flash Point: -32.166 °C; (18)Enthalpy of Vaporization: 27.4 kJ/mol; (19)Boiling Point: 41.499 °C at 760 mmHg; (20)Vapour Pressure: 418.459991455078 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES:C1C=CC=C1;
(2)Std. InChI:InChI=1S/C5H6/c1-2-4-5-3-1/h1-4H,5H2 ;
(3)Std. InChIKey:ZSWFCLXCOIISFI-UHFFFAOYSA-N.

The toxicity data of Cyclopentadiene as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LC50	inhalation	14gm/m3 (14000mg/m3)	BEHAVIORAL: EXCITEMENT BEHAVIORAL: AGGRESSION BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY)	Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 9(12), Pg. 13, 1965.
mouse	LD50	oral	800mg/kg (800mg/kg)		Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv. Toxicology of New Industrial Chemical Substances. For English translation, see TNICS*. Vol. 9, Pg. 27, 1967.
rabbit	LD50	skin	430mg/kg (430mg/kg)		National Technical Information Service. Vol. OTS0535718,
rat	LC50	inhalation	39gm/m3 (39000mg/m3)	BEHAVIORAL: AGGRESSION BEHAVIORAL: MUSCLE CONTRACTION OR SPASTICITY) BEHAVIORAL: EXCITEMENT	Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. Vol. 9(12), Pg. 13, 1965.
rat	LD50	oral	113mg/kg (113mg/kg)		National Technical Information Service. Vol. OTS0535718,