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1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE structure

CAS No.: 4249-10-9

Chemical Name:: 1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE

Synonyms: openta-1,3-diene;1,2,3,4-TetramethyL;Tetrmethylcyclopendadiene;Tetramethylcyclopentenone;TETRAMETHYLCYCLOPENTADIENE;1234 tetramethylcylcopentadiene;1,2,3,4-TETRAMETHYLCYCLOPENTADIENE;1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE;1,2,3,4-TetraMethylcyclopenta-1,3-diene;tetramethylcyclopentadiene, mixed isomers

CBNumber:: CB3496011

Molecular Formula:: C9H14

Molecular Weight:: 122.21

MDL Number:: MFCD00145385

MOL File:: 4249-10-9.mol

Last updated:2026-01-13 11:18:28

Product description	Number	Pack Size	Price
1,2,3,4-Tetramethyl-1,3-cyclopentadiene ~85%	424471	5g	$179
1,2,3,4-Tetramethylcyclopenta-1,3-diene	T301195	1g	$125
1,2,3,4-Tetramethylcyclopenta-1,3-diene	T301195	100mg	$50
1,2,3,4-Tetramethylcyclopenta-1,3-diene 95+%	093798	1g	$95
TETRAMETHYLCYCLOPENTADIENE 95.00%	CHM0005659	50G	$3007.62
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1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE Properties

Boiling point	142 °C (lit.)
Density	0.808 g/mL at 25 °C (lit.)
refractive index	n20/D 1.472(lit.)
Flash point	108 °F
storage temp.	Sealed in dry,2-8°C
solubility	Not miscible mix with mater.
form	Liquid
color	Light yellow
Specific Gravity	0.808
Sensitive	Air & Moisture Sensitive
InChI	InChI=1S/C9H14/c1-6-5-7(2)9(4)8(6)3/h5H2,1-4H3
InChIKey	VNPQQEYMXYCAEZ-UHFFFAOYSA-N
SMILES	C1(C)CC(C)=C(C)C=1C
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02

Signal word

Warning

Hazard statements

H226

Precautionary statements

P210-P240-P241-P280a-P303+P361+P353-P501a

PPE

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Risk Statements

Safety Statements

RIDADR

UN 3295 3/PG 3

WGK Germany

TSCA

TSCA listed

HazardClass

PackingGroup

III

HS Code

29021900

Storage Class

3 - Flammable liquids

Hazard Classifications

Flam. Liq. 3

NFPA 704

	2
0		1

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE price More Price(17)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	424471	1,2,3,4-Tetramethyl-1,3-cyclopentadiene ~85%	4249-10-9	5g	$179	2025-07-31	Buy
TRC	T301195	1,2,3,4-Tetramethylcyclopenta-1,3-diene	4249-10-9	1g	$125	2021-12-16	Buy
TRC	T301195	1,2,3,4-Tetramethylcyclopenta-1,3-diene	4249-10-9	100mg	$50	2021-12-16	Buy
Matrix Scientific	093798	1,2,3,4-Tetramethylcyclopenta-1,3-diene 95+%	4249-10-9	1g	$95	2021-12-16	Buy
American Custom Chemicals Corporation	CHM0005659	TETRAMETHYLCYCLOPENTADIENE 95.00%	4249-10-9	50G	$3007.62	2021-12-16	Buy

Product number	Packaging	Price	Buy
424471	5g	$179	Buy
T301195	1g	$125	Buy
T301195	100mg	$50	Buy
093798	1g	$95	Buy
CHM0005659	50G	$3007.62	Buy

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE Chemical Properties,Uses,Production

Chemical Properties

light yellow liquid

Uses

1,2,3,4-Tetramethylcyclopenta-1,3-diene is an intermediate in the conversion of ethylene to polyenes

Uses

1,2,3,4-Tetramethyl-1,3-cyclopentadiene may be used as a starting material in the synthesis of 1,7,8,9-tetramethyl-4-oxa-tricyclo[5.2.1.0^2,6]dec-8-ene-3,5-dione.

General Description

1,2,3,4-Tetramethyl-1,3-cyclopentadiene is a tetra substituted 1,3-cyclopentadiene. It participates in the synthesis of resin-bound tetramethylcyclopentadienes.

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE synthesis

Synthesis of 1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE from 2-Cyclopenten-1-ol, 2,3,4,5-tetramethyl-

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE Preparation Products And Raw materials

Raw materials

p-Toluenesulfonic acid Diethyl ether Benzene Lithium Aluminum Hydride 2,3,4,5-TETRAMETHYL-2-CYCLOPENTENONE

Preparation Products

DIMETHYLBIS(2,3,4,5-TETRAMETHYL-2,4-CYCLOPENTADIEN-1-YL)SILANE

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE Suppliers

Global( 121)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
XINXIANG RUNYU MATERIAL CO., LTD.	+86-13592593621; +8613592593621	sales@runvmat.com	China	446	58
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD	+86-13017695106 +86-13676922317	jiuyitime@fdachem.com	China	16513	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718; +8613336195806	sales@capot.com	China	29735	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21597	55
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49977	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29795	58
Richest Group Ltd	18017061086	oled@richest-group.com	CHINA	5600	58
Xi'an Yutbon Pharmaceutical Technology Co., Ltd	029-81140587 +8618717328141	sales@yutbon.com	China	454	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	11727	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58

Supplier	Advantage
XINXIANG RUNYU MATERIAL CO., LTD.	58
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD	58
Capot Chemical Co.,Ltd.	60
Henan Tianfu Chemical Co.,Ltd.	55
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Richest Group Ltd	58
Xi'an Yutbon Pharmaceutical Technology Co., Ltd	58
Zhengzhou Alfa Chemical Co.,Ltd	58
Hefei TNJ Chemical Industry Co.,Ltd.	58

View Lastest Price from 1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-12-01	1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE 4249-10-9	US $0.00 / kg	1kg	99%	10000KGS	Shaanxi Dideu New Materials Co. Ltd
2025-10-13	1,2,3,4-Tetramethylcyclopentadiene 4249-10-9	US $2.00-5.00 / kg	1kg	99%	100kg	ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD
2025-05-12	1,2,3,4-Tetramethyl-1,3-Cyclopentadiene 4249-10-9	US $0.00 / kg	0.05kg	95%	100kgs	PUSHAN INDUSTRIAL (SHAANXI) CO.,LTD

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE
4249-10-9
US $0.00 / kg
99%
Shaanxi Dideu New Materials Co. Ltd

1,2,3,4-Tetramethylcyclopentadiene
4249-10-9
US $2.00-5.00 / kg
99%
ZHENGZHOU JIUYI TIME NEW MATERIALS CO,.LTD

1,2,3,4-Tetramethyl-1,3-Cyclopentadiene
4249-10-9
US $0.00 / kg
95%
PUSHAN INDUSTRIAL (SHAANXI) CO.,LTD

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE Spectrum

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE(4249-10-9)¹HNMR 1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE(4249-10-9)IR

4249-10-9(1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE)Related Search:

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1,2,3,4,5-Pentamethylcyclopentadiene (Pentamethylcyclopentadien-1-yl)trimethylsilane 1,2,3,4,5-PENTAPHENYL-1,3-CYCLOPENTADIENE 1,2,3,4-TETRAPHENYL-1,3-CYCLOPENTADIENE 1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE

1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE 85% TRIMETHYL(2,3,4,5-TETRAMETHYL-2,4-CYCLOPENTADIEN-1-YL)SILANE 1,2,3,4-Tetraphenylfulvene 2,5-BIS(METHOXYCARBONYL)-3,4-DIPHENYLCYCLOPENTADIENONE PENTAMETHYL CYCLOPENTADIENE-1,2,3,4,5-PENTACARBOXYLATE

BIS(2,3,4,5-TETRAMETHYL-2,4-CYCLOPENTADIENE-1-YL)DIMETHYLSILANE, 95+%,BIS-(2,3,4,5-TETRAMETHYL-2,4-CYCLOPENTADIENE-1-YL)-DIMETHYLSILANE ETHYLTETRAMETHYLCYCLOPENTADIENE 2,5-Dimethyl-3,4-diphenylcyclopentadienone

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1,2,3,4-TETRAMETHYL-1,3-CYCLOPENTADIENE 1,2,3,4-TETRAMETHYLCYCLOPENTADIENE TETRAMETHYLCYCLOPENTADIENE tetramethylcyclopentadiene, mixed isomers Tetramethylcyclopentadiene, mixed isomers, 90+% 1,2,3,4-Tetramethyl-1,3-cyclopentadiene,85% Tetrmethylcyclopendadiene 1,2,3,4-Tetramethyl-1,3-cyclopentadiene ,93% 1,2,3,4-Tetramethyl-1,3-cyclopentadiene ,85% [mixture of isomers] 1,2,3,4-Tetramethyl-1,3-cyclopentadiene, mixture of isomers, 85% 1,2,3,4-TetraMethyl-1,3-cyclopentadiene, 85% 5GR 1,2,3,4-TetraMethylcyclopenta-1,3-diene Tetramethylcyclopentadiene, mixture of isomers, technical, 85% 1,2,3,4-TetramethyL openta-1,3-diene 1,3-Cyclopentadiene, 1,2,3,4-tetramethyl- 1,2,3,4-Tetramethyl- 1,3-cyclopentadiene, mixed isomers 1234 tetramethylcylcopentadiene Tetramethylcyclopentenone 4249-10-9 C5H2CH34 C9H14 Building Blocks Alkenes Cyclic Organic Building Blocks Alkenes Cyclic Organic Building Blocks