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2,5-Norbornadiene

2,5-Norbornadiene structure

CAS No.: 121-46-0

Chemical Name:: 2,5-Norbornadiene

Synonyms: Norbornadiene;BICYCLO[2.2.1]HEPTA-2,5-DIENE;Norborna-2,5-diene;Bicyclo[2.2.1]heptadiene;BICYCLO[2.2.1]-2,5-HEPTADIENE;Norbornadine;2,5-NORBORNADINE;Bicycloheptadiene;2,5-NORBORNADIENE;Dicycloheptadiene

CBNumber:: CB7406300

Molecular Formula:: C7H8

Molecular Weight:: 92.14

MDL Number:: MFCD00082301

MOL File:: 121-46-0.mol

MSDS File:: SDS

Last updated:2023-12-26 11:30:52

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2,5-Norbornadiene Properties

Melting point	-20--19°C
Boiling point	89 °C(lit.)
Density	0.906 g/mL at 25 °C(lit.)
vapor pressure	69 hPa (20 °C)
refractive index	n20/D 1.470(lit.)
Flash point	12 °F
storage temp.	Store below +30°C.
solubility	Chloroform (Sparingly)
form	A liquid
color	Colorless to Almost colorless
explosive limit	1.6-6.3%(V)
Water Solubility	Immiscible with water.
λmax	195nm(EtOH)(lit.)
BRN	506224
Stability	Volatile
InChIKey	SJYNFBVQFBRSIB-UHFFFAOYSA-N
LogP	2.67 at 25℃ and pH7
Surface tension	64.3-64.4mN/m at 900μg/L and 20.3℃
CAS DataBase Reference	121-46-0(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	W9ZTQ75ZUS
NIST Chemistry Reference	2,5-Norbornadiene(121-46-0)
EPA Substance Registry System	2,5-Norbornadiene (121-46-0)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS02

Signal word

Danger

Hazard statements

H225

Precautionary statements

P210-P233-P240-P241-P242-P243

Hazard Codes

Risk Statements

Safety Statements

16-23

RIDADR

UN 2251 3/PG 2

WGK Germany

RTECS

RB6535000

Autoignition Temperature

350 °C

TSCA

Yes

HazardClass

PackingGroup

HS Code

29021990

Toxicity

LD50 orl-rat: 890 mg/kg SHELL*

NFPA 704

	3
1		1

2,5-Norbornadiene price More Price(15)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	B33803	Bicyclo[2.2.1]hepta-2,5-diene 98%	121-46-0	5ml	$40.3	2024-03-01	Buy
Sigma-Aldrich	B33803	Bicyclo[2.2.1]hepta-2,5-diene 98%	121-46-0	100ml	$232	2024-03-01	Buy
Sigma-Aldrich	8.20918	2,5-Norbornadiene (stabilised) for synthesis	121-46-0	250ML	$212	2024-03-01	Buy
TCI Chemical	N0346	2,5-Norbornadiene (stabilized with BHT) >97.0%(GC)	121-46-0	25mL	$55	2024-03-01	Buy
TCI Chemical	N0346	2,5-Norbornadiene (stabilized with BHT) >97.0%(GC)	121-46-0	100mL	$158	2024-03-01	Buy

Product number	Packaging	Price	Buy
B33803	5ml	$40.3	Buy
B33803	100ml	$232	Buy
8.20918	250ML	$212	Buy
N0346	25mL	$55	Buy
N0346	100mL	$158	Buy

2,5-Norbornadiene Chemical Properties,Uses,Production

Chemical Properties

2,5-Norbornadiene, also known as dicycloheptadiene, is a clear colorless to slightly yellow liquid that is soluble in petroleum ether and insoluble in water. Commercially available goods usually contain 500 ppm of 2,6-di-tert-butyl-p-methylphenol (BHT) as a stabilizer. Analyzing the structural characteristics of NBD, it can be found that it has good reaction properties and can synthesize a variety of organic compounds through addition or substitution reactions at the double bond.

Uses

2,5-Norbornadiene is used as an intermediate in prostaglandin synthesis and shows anti-ethylene effect on plants. It acts as a starting material for the synthesis of diamantane and as an acetylene transfer agent for instance, in reaction with 3,6-di-2-pyridyl-1,2,4,5-tetrazine. It is also a useful dienophile in Diels-Alder reactions.

Uses

2,5-Norbornadiene has an anti-ethylene effect on plants and inhibits polyphenol oxidase, peroxidase and phenylalanine ammonia lyase activities.

Preparation

2,5-Norbornadiene is of interest as a metal-binding ligand, whose complexes are useful for homogeneous catalysis. Norbornadiene can be formed by a Diels-Alder reaction between cyclopentadiene and acetylene.

General Description

2,5-norbornadiene, stabilized appears as a colorless liquid. Insoluble in water and less dense than water. Contact may irritate skin, eyes and mucous membranes. May be toxic by ingestion, inhalation and skin absorption. When heated will polymerize and at decomposition emits acrid smoke and irritating fumes.

Air & Water Reactions

Highly flammable. Insoluble in water.

Reactivity Profile

2,5-NORBORNADIENE may react vigorously with strong oxidizing agents. May react exothermically with reducing agents to release hydrogen gas. In the presence of various catalysts (such as acids) or initiators, may undergo exothermic addition polymerization reactions. Violent explosions at low temperatures in ammonia synthesis gas units have been traced to the addition products of dienes and nitrogen dioxide [Bretherick, 5th Ed., 1995].

Health Hazard

Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Safety Profile

Poison by intravenous route. Moderately toxic by ingestion and intraperitoneal routes. Mildly toxic by inhalation. A flammable liquid. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Purify the diene by distillation from activated alumina [Landis & Halpern J Am Chem Soc 109 1746 1987]. [Beilstein 5 IV 879.]

2,5-Norbornadiene synthesis

Synthesis of 2,5-Norbornadiene from QUADRICYCLANE

2,5-Norbornadiene Preparation Products And Raw materials

Raw materials

3,4-Diazatricyclo[4.2.1.02,5]nona-3,7-diene, (1R,2R,5S,6S)-rel- (9CI) Bicyclo[2.2.1]hept-2-ene, 5,6-bis(phenylsulfonyl)-, (endo,endo)- (9CI)

Preparation Products

Bicyclo[2.2.1]heptane-2,5-dione Dihydromyrcene anti-5-Carboxytricyclo[2.2.1.0](2,6)-heptan-3-one. Naphtho[2,1-f]quinoline 3-EXO-AMINOBICYCLO[2.2.1]HEPT-5-ENE-2-EXO-CARBOXYLIC ACID

2,5-Norbornadiene Suppliers

Global( 163)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Guanlang Biotechnology Co., Ltd.	+86-19930503259 +86-19930503259	cherry@crovellbio.com	China	18456	58
Qingdao Dexin Chemical Co., Ltd	+8615553333686	15553333686@qq.com	China	926	58
Hebei Mojin Biotechnology Co., Ltd	+8613288715578	sales@hbmojin.com	China	12456	58
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	7845	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	15928	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21691	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1807	55
career henan chemical co	+86-0371-86658258	sales@coreychem.com	China	29914	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Hebei Guanlang Biotechnology Co., Ltd.	+86-19930503282	alice@crovellbio.com	China	8823	58

Supplier	Advantage
Hebei Guanlang Biotechnology Co., Ltd.	58
Qingdao Dexin Chemical Co., Ltd	58
Hebei Mojin Biotechnology Co., Ltd	58
Henan Fengda Chemical Co., Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
Shanghai Time Chemicals CO., Ltd.	55
career henan chemical co	58
Hubei Jusheng Technology Co.,Ltd.	58
Hebei Guanlang Biotechnology Co., Ltd.	58

View Lastest Price from 2,5-Norbornadiene manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2023-12-26	2,5-Norbornadiene 121-46-0	US $100.00-1.00 / KG	1KG	99%	g-kg-tons, free sample is available	Henan Fengda Chemical Co., Ltd
2023-09-06	2,5-Norbornadiene 121-46-0	US $0.00 / KG	1KG	99%	500000kg	Hebei Guanlang Biotechnology Co., Ltd.
2023-08-02	2,5-Norbornadiene 121-46-0	US $0.00 / KG	1KG	99%	50000KG/month	Hebei Mojin Biotechnology Co., Ltd

2,5-Norbornadiene
121-46-0
US $100.00-1.00 / KG
99%
Henan Fengda Chemical Co., Ltd

2,5-Norbornadiene
121-46-0
US $0.00 / KG
99%
Hebei Guanlang Biotechnology Co., Ltd.

2,5-Norbornadiene
121-46-0
US $0.00 / KG
99%
Hebei Mojin Biotechnology Co., Ltd

2,5-Norbornadiene Spectrum

2,5-Norbornadiene(121-46-0)MS 2,5-Norbornadiene(121-46-0)¹HNMR 2,5-Norbornadiene(121-46-0)¹³CNMR 2,5-Norbornadiene(121-46-0)IR1 2,5-Norbornadiene(121-46-0)IR2 2,5-Norbornadiene(121-46-0)Raman

121-46-0(2,5-Norbornadiene)Related Search:

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DICHLORO(NORBORNADIENE)PLATINUM (II) (BICYCLO[2.2.1]HEPTA-2,5-DIENE)CHLORORHODIUM(I) DIMER EXO-NORBORNEOL

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Bicyclo[2.2.1]hepta-2,5-diene, 97%, stabilized with 0.05 - 0.25% BHT, 97% (1s,4s)-Bbicyclo[2.2.1]hepta-2,5-diene Bicyclo[2.2.1]hepta-2,5-diene 98% 2,5-Norbornadiene Bicyclo[2.2.1]hepta-2,5-diene, stabilized with 0.05 - 0.25% BHT Bicycol(2.2.1)hepta-2.5-diene (2.5-norbornadiene) Bicyclo[2.2.1]hepta-2,5-diene, stabilized Bicycloheptadiene 2,5-Nornornadiene, stabilized, 97+% BICYCLOHEPTA-2,5-DIENE 2,5-NORBORNADIENE , STABILIZED WITH 250 PPM BHT BICYCLO(2.2.1)HEPTA-2,5-DIENE (2,5-NORBORNADIENE) 2,5-Norbornadiene, 97%, stab with 250 ppm BHT 2,5-Norbornadiene (stabilized with BHT) Bicyclo[2.2.1]hepta-2,5-diene ,97% Bicyclo[2.2.1]hepta- Bicyclo2.2.1ühepta-2,5-diene, 99% 5 - Norbornene -2,3 acid 2,5-Nornornadiene,97+%,stabilized 2,5-Norbornadiene (stabilised) for synthesis 3,6-Methano-1,4-cyclohexadiene 8,9,10-trinorborna-2,5-diene bicyclo(2.2.1)heptadiene bicyclo[2.2.1]hepta-2,5-diene,(Norbornadiene) 2,5-DICYCLOHEPTADIENE 2,5-NORBORNADIENE 2,5-NORBORNADINE Dicycloheptadiene Norbornadine 2,5-Norbornadiene(stabilizedwithBHT)> 2,5-NORBORNADIENE (STABILISED) FOR SYNTH 2,5-Norbornadiene ISO 9001：2015 REACH Norborna-2,5-diene Bicyclo[2.2.1]heptadiene Norbornadiene BICYCLO[2.2.1]HEPTA-2,5-DIENE BICYCLO[2.2.1]-2,5-HEPTADIENE 121-46-0 Azobenzene, etc. (Photochromic Compounds) Photochromic Compounds Cyclic Organic Building Blocks Building Blocks Alkenes Norbornene Derivatives Pharmaceutical intermediate Azobenzene, etc. (Photochromic Compounds) Functional Materials Photochromic Compounds Alicyclic/Etch-Resistant Monomers Alkenes Building Blocks Chemical Synthesis Contact Printing Cyclic Lithography Monomers Materials Science Micro/NanoElectronics