2,5-Norbornadiene

Product Name: 2,5-Norbornadiene
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
Formula Weight: 92.14
MOL File: 121-46-0.mol

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2,5-Norbornadiene Property

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
Odor: Very diffusive, gassy-piney, camphoraceous-woody odor
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)
NIST Chemistry Reference: 2,5-Norbornadiene(121-46-0)
EPA Substance Registry System: 2,5-Norbornadiene (121-46-0)

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Safety

Hazard Codes: F
Risk Statements: 11
Safety Statements: 16-23
RIDADR: UN 2251 3/PG 2
WGK Germany: 2
RTECS: RB6535000
F: 13
Autoignition Temperature: 350 °C
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29021990
Toxicity: LD50 orl-rat: 890 mg/kg SHELL*

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H225Highly Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: B33803
Product name: Bicyclo[2.2.1]hepta-2,5-diene
Purity: 98%
Packaging: 5ml
Price: $40.3
Updated: 2024/03/01

Sigma-Aldrich

Product number: B33803
Product name: Bicyclo[2.2.1]hepta-2,5-diene
Purity: 98%
Packaging: 100ml
Price: $232
Updated: 2024/03/01

Sigma-Aldrich

Product number: 8.20918
Product name: 2,5-Norbornadiene
Purity: (stabilised) for synthesis
Packaging: 250ML
Price: $212
Updated: 2024/03/01

TCI Chemical

Product number: N0346
Product name: 2,5-Norbornadiene (stabilized with BHT)
Purity: >97.0%(GC)
Packaging: 25mL
Price: $55
Updated: 2024/03/01

TCI Chemical

Product number: N0346
Product name: 2,5-Norbornadiene (stabilized with BHT)
Purity: >97.0%(GC)
Packaging: 100mL
Price: $158
Updated: 2024/03/01

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2,5-Norbornadiene Chemical Properties,Usage,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 is industrially available as a chemical intermediate. It was not intended for use in perfumes, and it is only occasionally used as such. It serves mainly as a starting material for the manufacture of industrial chemicals, etc.
2,5-Norbornadiene has occasionally been used in Pine needle fragrances to improve the diffusiveness of the fragrance, and to lend initial power and short life to the fragrances which are intended for "short-effect" purposes, e.g. dishwashing detergent fragrances, etc. It is also used as a masking agent when a volatile and powerful material is needed at low cost.

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 Preparation Products And Raw materials

Raw materials

Preparation Products

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2,5-Norbornadiene Suppliers

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View Lastest Price from 2,5-Norbornadiene manufacturers

Hebei Weibang Biotechnology Co., Ltd

Product: 2,5-Norbornadiene 121-46-0
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-11-20

Henan Fengda Chemical Co., Ltd

Product: 2,5-Norbornadiene 121-46-0
Price: US $100.00-1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2023-12-26

Hebei Mojin Biotechnology Co., Ltd

Product: 2,5-Norbornadiene 121-46-0
Price: US $0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 50000KG/month
Release date: 2023-08-01

121-46-0, 2,5-NorbornadieneRelated Search:

Androstenedione 5-ETHYLIDENE-2-NORBORNENE Diallyl phthalate 1,3-Cyclopentadiene TRANS-1,3-PENTADIENE DL-ALPHA-AMINOPIMELIC ACID Norbornene Dicyclopentadiene 7-TERT-BUTOXY-2,5-NORBORNADIENE HEPTACHLOR BIS(NORBORNADIENE)RHODIUM (I) TETRAFLUOROBORATE 7-CHLORONORBORNADIENE cis-5-Norbornadiene-endo-2,3-dicarboxylic anhydride TRIS(NORBORNADIENE)(ACETYLACETONATO)IRIDIUM(III),Tris-(norbornadiene)acetylacetonateiridium(III),Tris(norbornadiene)(acetylacetonato)iridium(III),98%(99.9%-Ir) (S,S)-1,2-BIS[(TERT-BUTYL)METHYLPHOSPHINO]ETHANE[ETA-(2,5-NORBORNADIENE)]RHODIUM(I) TETRAFLUOROBORATE DICHLORO(NORBORNADIENE)PLATINUM (II) (BICYCLO[2.2.1]HEPTA-2,5-DIENE)CHLORORHODIUM(I) DIMER EXO-NORBORNEOL

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&nbsp

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%

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Bicyclo2.2.1ühepta-2,5-diene, 99%

5 - Norbornene -2,3 acid

Norborna-2,5-diene

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)

Bicyclo[2.2.1]heptadiene

Norbornadiene

2,5-DICYCLOHEPTADIENE

2,5-NORBORNADIENE

2,5-NORBORNADINE

Dicycloheptadiene

BICYCLO[2.2.1]HEPTA-2,5-DIENE

BICYCLO[2.2.1]-2,5-HEPTADIENE

Norbornadine

2,5-Norbornadiene(stabilizedwithBHT)&gt

2,5-NORBORNADIENE (STABILISED) FOR SYNTH

2,5-Norbornadiene ISO 9001：2015 REACH

121-46-0

Azobenzene, etc. (Photochromic Compounds)

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