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5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE

CAS No.
18672-03-2
Chemical Name:
5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE
Synonyms
5,6-DICHLORO-1H-BENZO[D]IMIDAZOL-2-AMINE;2-Amino-5,6-dichlorobenzimidazole;5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE;2-Amino-5,6-dichloro-1H-benzimidazole;1H-Benzimidazol-2-amine, 5,6-dichloro-;5,6-dichloro-1H-1,3-benzodiazol-2-amine
CBNumber:
CB1206007
Molecular Formula:
C7H5Cl2N3
Molecular Weight:
202.04
MDL Number:
MFCD08234602
MOL File:
18672-03-2.mol
Last updated:2025-08-08 17:45:00
Product description Number Pack Size Price
5,6-DICHLORO-1H-BENZO[D]IMIDAZOL-2-AMINE 98.00% HCH0142863 1G $1068.38
5,6-DICHLORO-1H-BENZO[D]IMIDAZOL-2-AMINE 98.00% HCH0142863 5G $2512.13
5,6-dichloro-1H-benzo[d]imidazol-2-amine 95 SC-51871 2g $1633
5,6-dichloro-1H-benzo[d]imidazol-2-amine 95 SC-51871 5g $2100
5,6-Dichloro-1H-benzo[d]imidazol-2-amine 96% CM250713 1g $276

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE Properties

Melting point 244-246℃
Boiling point 435.4±48.0 °C(Predicted)
Density 1.665±0.06 g/cm3(Predicted)
storage temp. 2-8°C(protect from light)
pka 8.47±0.10(Predicted)
Appearance Light yellow to light brown Solid
CAS DataBase Reference 18672-03-2

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS06
Signal word  Warning
Hazard statements  H301-H315-H319-H335
Precautionary statements  P261-P280a-P301+P310a-P305+P351+P338-P405-P501a
NFPA 704
0
2 0

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE price More Price(13)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation HCH0142863 5,6-DICHLORO-1H-BENZO[D]IMIDAZOL-2-AMINE 98.00% 18672-03-2 1G $1068.38 2021-12-16 Buy
American Custom Chemicals Corporation HCH0142863 5,6-DICHLORO-1H-BENZO[D]IMIDAZOL-2-AMINE 98.00% 18672-03-2 5G $2512.13 2021-12-16 Buy
Labseeker SC-51871 5,6-dichloro-1H-benzo[d]imidazol-2-amine 95 18672-03-2 2g $1633 2021-12-16 Buy
Labseeker SC-51871 5,6-dichloro-1H-benzo[d]imidazol-2-amine 95 18672-03-2 5g $2100 2021-12-16 Buy
Chemenu CM250713 5,6-Dichloro-1H-benzo[d]imidazol-2-amine 96% 18672-03-2 1g $276 2021-12-16 Buy
Product number Packaging Price Buy
HCH0142863 1G $1068.38 Buy
HCH0142863 5G $2512.13 Buy
SC-51871 2g $1633 Buy
SC-51871 5g $2100 Buy
CM250713 1g $276 Buy

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE Chemical Properties,Uses,Production

Uses

2-Amino-5,6-dichlorobenzimidazole is used as pharmaceutical intermediate.

Synthesis

4,5-Dichloro-1,2-benzenediamine

5348-42-5

Cyanogen bromide

506-68-3

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE

18672-03-2

Example 138: General procedure for the synthesis of 5,6-dichloro-1H-benzo[d]imidazol-2-amine from 4,5-dichloro-1,2-benzenediamine and cyanogen bromide: Cyanogen bromide (0.063 g, 0.6 mmol) was added to a mixture of acetonitrile (10 mL) and water (0.81 g, 0.562 mmol) of 4,5-dichlorobenzene-1,2-diamine (0.81 g, 0.562 mmol) at 0 °C. (2 mL) in a mixed solution of acetonitrile (10 mL) and water (2 mL). The reaction mixture was gradually warmed to room temperature with continuous stirring for 14 hours. Subsequently, saturated aqueous sodium bicarbonate solution (50 mL) was added to the reaction mixture and shaken thoroughly. The resulting solid was collected by filtration, washed with water and dried under reduced pressure to afford 5,6-dichloro-1H-benzo[d]imidazol-2-amine 0.43 g in 50% yield. Mass spectrometry (EI) analysis showed a molecular ion peak (MH+) of 203.

References

[1] Journal of Medicinal Chemistry, 1995, vol. 38, # 20, p. 4098 - 4105
[2] Journal of Medicinal Chemistry, 1998, vol. 41, # 8, p. 1252 - 1262
[3] Bioorganic and medicinal chemistry letters, 2002, vol. 12, # 16, p. 2221 - 2224
[4] Patent: WO2008/42282, 2008, A2. Location in patent: Page/Page column 208
[5] Angewandte Chemie - International Edition, 2012, vol. 51, # 41, p. 10364 - 10367

6641-64-1
18672-03-2
Synthesis of 5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE from 4,5-Dichloro-2-nitroaniline

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE Preparation Products And Raw materials

Raw materials

Preparation Products

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE Suppliers

Global( 57)Suppliers
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Wuhan Chemwish Technology Co., Ltd
027-67849912 sales@chemwish.com CHINA 10821 58
Career Henan Chemica Co
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HANGZHOU LEAP CHEM CO., LTD.
+86-571-87711850 market18@leapchem.com China 43339 58
R&D Scientific Inc.
+1-2266000236 sales@rdscientific.com Canada 1872 58
Qingdao Dexin Chemical Co., Ltd
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Chongqing Chemdad Co., Ltd
+86-023-6139-8061 +86-86-13650506873 sales@chemdad.com China 39927 58
Amadis Chemical Company Limited
571-89925085 sales@amadischem.com China 131957 58
J & K SCIENTIFIC LTD. 18210857532; 18210857532 jkinfo@jkchemical.com China 96815 76
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30123 84

View Lastest Price from 5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE pictures 2025-06-03 5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE
18672-03-2
US $90.00-900.00 / kg 10kg 0.99 20tons Zibo Hangyu Biotechnology Development Co., Ltd

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE Spectrum

5,6-DICHLORO-1H-BENZIMIDAZOL-2-AMINE 1H-Benzimidazol-2-amine, 5,6-dichloro- 2-Amino-5,6-dichloro-1H-benzimidazole 2-Amino-5,6-dichlorobenzimidazole 5,6-dichloro-1H-1,3-benzodiazol-2-amine 5,6-DICHLORO-1H-BENZO[D]IMIDAZOL-2-AMINE 18672-03-2 C7H5Cl2N3 blocks Imidazoles pharmacetical