2,7-Dibromocarbazole

Product Name: 2,7-Dibromocarbazole
CAS No.: 136630-39-2
Chemical Name: 2,7-Dibromocarbazole
Synonyms: 2,7-Dibromocarbazole;KFC;CAS:136630-39-2;2,7-DibromocarbazoL;2-Bromocarbazole-D7;2,7-Dibrom-9H-carbazol;2,7-Dibromocarbazole>2,7-DIBROMO-9H-CARBAZOLE;9H-Carbazole, 2,7-dibroMo-;2,7-Dibromo-9H-carbazole ,97%
CBNumber: CB8842130
Molecular Formula: C12H7Br2N
Formula Weight: 325
MOL File: 136630-39-2.mol

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2,7-Dibromocarbazole Property

Melting point:: 230.0 to 234.0 °C
Boiling point:: 459.0±25.0 °C(Predicted)
Density: 1.930±0.06 g/cm3(Predicted)
storage temp.: Sealed in dry,Room Temperature
form: powder to crystal
pka: 15.13±0.30(Predicted)
color: White to Light yellow
InChI: InChI=1S/C12H7Br2N/c13-7-1-3-9-10-4-2-8(14)6-12(10)15-11(9)5-7/h1-6,15H
InChIKey: QPTWWBLGJZWRAV-UHFFFAOYSA-N
SMILES: N1C2=C(C=CC(Br)=C2)C2=C1C=C(Br)C=C2

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Safety

Hazard Codes: T
Risk Statements: 25-36/37/38
Safety Statements: 26-45-36/37/39
RIDADR: 2811
WGK Germany: 3
HazardClass: 6.1
PackingGroup: Ⅲ
HS Code: 29339900

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 755354
Product name: 2,7-Dibromo-9H-carbazole
Packaging: 1g
Price: $81
Updated: 2023/06/20

TCI Chemical

Product number: D3932
Product name: 2,7-Dibromocarbazole
Purity: >98.0%(HPLC)(N)
Packaging: 1g
Price: $56
Updated: 2025/07/31

TCI Chemical

Product number: D3932
Product name: 2,7-Dibromocarbazole
Purity: >98.0%(HPLC)(N)
Packaging: 5g
Price: $155
Updated: 2025/07/31

TRC

Product number: D425193
Product name: 2,7-Dibromo-9H-carbazole
Packaging: 100mg
Price: $45
Updated: 2021/12/16

TRC

Product number: D425193
Product name: 2,7-Dibromo-9H-carbazole
Packaging: 500mg
Price: $65
Updated: 2021/12/16

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2,7-Dibromocarbazole Chemical Properties,Usage,Production

Application

One of the most popular products made available from 2,7-dibromocarbazole is PCDTBT, a well-known polymer semiconductor used for polymer solar cells. A good example for adjusting the solubility of the carbazole compounds by using 2,7-dibromocarbazole as the starting materials is the synthesis of 2,7-dibromo-9-heptadecanylcarbazole.

Description

2,7-dibromocarbazole, also known as 2,7-dibromo-9H-carbazole, is a building block for the synthesis of small molecules of carbazole series or carbazole back-boned polymers in the application of OFETs, OLEDs, PLEDs and OPVs.

Chemical Properties

White to light yellow powder or crystals

Uses

2,7-Dibromocarbazole (2,7-DBCZ) is predominantly employed in environmental pollution monitoring. Possessing a structure analogous to dioxins, 2,7-DBCZ ranks among the most frequently detected polyhalocarazoles (phcz) in environmental media.

General Description

2,7-Dibromocarbazole (2,7-DBCZ) is an emerging environmental pollutant. Due to its dioxin-like toxicity, cardiovascular toxicity and cardiac teratogenic effects, it poses a potentially high risk to human health.

Synthesis

301-13-3

439797-69-0

136630-39-2

544436-46-6

Reaction of 4,4'-dibromo-2-nitro-1,1'-biphenyl (0.004 mol) and 4-nitrotoluene (0.006 mol) with an excess of tris(2-ethylhexyl) phosphite (0.05 mol) was carried out at 160 °C for 5 h (for the specific compounds j, k) or 17 h (for the specific compounds i, m), protected by argon gas. Upon completion of the reaction, the reaction was cooled to room temperature and the excess tris(2-ethylhexyl) phosphite and the resulting tris(2-ethylhexyl) phosphate were subsequently removed under vacuum. The reaction mixture was purified by silica gel column chromatography with the eluent of toluene/heptane (1:1, v/v) and the column size of 3 cm × 60 cm. The major product 2,7-dibromo-9-(2-ethylhexyl)-9H-carbazole (Rf = 0.8-0.9) was effectively separated from the by-product 2,7-dibromocarbazole (Rf = 0.5-0.6). The resulting compounds 7a-m were characterized by thin layer chromatography (TLC), elemental analysis, melting point determination, 1H NMR, 13C NMR and Fourier transform infrared spectroscopy (FTIR). Chromatographically purified compound 7 was used for melting point determination and further purified by methanol recrystallization. Non-alkylated carbazoles 8 (including 2,7-diiodocarbazole 10 (8a-c), 2,7-dibromocarbazole 8 (8d-f), 2,7-dichlorocarbazole 7 (8g-i), and commercial carbazole 11 (8j-m)) were obtained either by independent preparation or by commercial purchase and used for structural characterization.

References

[1] Tetrahedron, 2012, vol. 68, # 25, p. 5075 - 5080

2,7-Dibromocarbazole Preparation Products And Raw materials

Raw materials

Acetic anhydride Nitric acid Acetic acid Triphenylphosphine 4,4'-Dibromobiphenyl 1,2-Dichlorobenzene

Preparation Products

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2,7-Dibromocarbazole Suppliers

Americas 1 Belgium 1 China 261 Europe 1 France 1 Germany 3 India 4 Japan 2 South Korea 2 Switzerland 1 United Kingdom 9 United States 36 Global 322

Zhengzhou AnMusi Chemical Products Co., Ltd.

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View Lastest Price from 2,7-Dibromocarbazole manufacturers

Hebei Chuanghai Biotechnology Co., Ltd

Product: 2,7-DIBROMO-9H-CARBAZOLE 136630-39-2
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 5tons
Release date: 2024-12-04

Shengyan (Shanghai) New Material Co., Ltd.

Product: 2,7-DIBROMO-9H-CARBAZOLE 136630-39-2
Price: US $0.00/kg
Min. Order: 1kg
Purity: 99
Supply Ability: 100kg
Release date: 2024-12-25

Henan Aochuang Chemical Co.,Ltd.

Product: 2,7-DIBROMO-9H-CARBAZOLE 136630-39-2
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: 1ton
Release date: 2022-09-27

136630-39-2, 2,7-DibromocarbazoleRelated Search:

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2,7-DIBROMO-9H-CARBAZOLE

2,7-Dibromocarbazole

9H-Carbazole, 2,7-dibroMo-

2,7-Dibromo-9H-carbazole ,97%

N,N-Bis(M-tolyl)benzenaMine,2,7-DibroMo-9H-carbazole, 9H-Carbazole

2,7-Dibrom-9H-carbazol

2,7-DibroMocarbazole (2,7-DBC)

2,7-DIBROMO-9H-CARBAZOLE; 2,7-DIBROMOCARBAZOLE

2,7-Dibromocarbazole&gt

2,7-DibromocarbazoL

KFC

2-Bromocarbazole-D7

2,7-Dibromo-9H-Carbazole, 10 mM in DMSO

CAS:136630-39-2

136630-39-2

133630-39-2

36630-39-2

OLED materials,pharm chemical,electronic

carbazole

OLED