2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
- CAS No.
- 152628-02-9
- Chemical Name:
- 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
- Synonyms
- 4-Methyl-6-(1-methyl-1H-benzimidazol-2-yl)-2-propyl-1H-benzimidazole;2-PROPYL-4-METHYL-6-(1-METHYLBENZIMIDAZOLE-2-YL)BENZIMIDAZOLE;4-Methyl-6-(1-methylbenzimidazol-2-yl)-2-propyl-1H-benzimidazole;Telmisartan EP Impurity A;2-Propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)benzimidazole;Telmisartan RC-A;Bis-Benzoimidazole;TelMisartan IMpurity A;Di-imidazole candesartan;Telmisartan Impurity 2
- CBNumber:
- CB7153796
- Molecular Formula:
- C19H20N4
- Molecular Weight:
- 304.39
- MDL Number:
- MFCD03840857
- MOL File:
- 152628-02-9.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Melting point | 130-135 °C(Solv: tetrahydrofuran (109-99-9)) |
|---|---|
| Boiling point | 584.8±52.0 °C(Predicted) |
| Density | 1.23±0.1 g/cm3(Predicted) |
| vapor pressure | 0-0Pa at 20-25℃ |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | soluble in Methanol |
| form | Powder |
| pka | 11.86±0.30(Predicted) |
| color | White to Light yellow to Light orange |
| InChI | InChI=1S/C19H20N4/c1-4-7-17-20-15-11-13(10-12(2)18(15)22-17)19-21-14-8-5-6-9-16(14)23(19)3/h5-6,8-11H,4,7H2,1-3H3,(H,20,22) |
| InChIKey | ILXRSCZVHSZGCS-UHFFFAOYSA-N |
| SMILES | C1(C2=CC(C)=C3NC(CCC)=NC3=C2)N(C)C2=CC=CC=C2N=1 |
| LogP | 3.49 at 20℃ and pH6 |
| CAS DataBase Reference | 152628-02-9(CAS DataBase Reference) |
| FDA UNII | 6LS25C273E |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P362+P364-P403+P233-P501c | |||||||||
| HS Code | 2933.99.8290 | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole price More Price(53)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | D5079 | 1,7'-Dimethyl-2'-propyl-2,5'-bibenzimidazole | 152628-02-9 | 5G | $79 | 2026-04-30 | Buy |
| TCI Chemical | D5079 | 1,7'-Dimethyl-2'-propyl-2,5'-bibenzimidazole | 152628-02-9 | 25G | $273 | 2026-04-30 | Buy |
| Usbiological | P9052-55T | 2-n-Propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)-benzimidazole | 100mg | $531 | 2026-06-04 | Buy | |
| Biosynth | FP27230 | 2-n-Propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)-benzimidazole | 152628-02-9 | 2kg | $900 | 2026-06-04 | Buy |
| Biosynth | FP27230 | 2-n-Propyl-4-methyl-6-(1-methylbenzimidazol-2-yl)-benzimidazole | 152628-02-9 | 1kg | $900 | 2026-06-04 | Buy |
2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole Chemical Properties, Uses, Production
Chemical Properties
Grey Powder
Uses
An impurity found in Telmisartan (T017000).
Synthesis
25148-68-9
152628-03-0
152628-02-9
General procedure for the synthesis of 1,7'-dimethyl-2'-propyl-1H,1'H-2,5'-dibenzo[d]imidazole from N-methyl-o-phenylenediamine hydrochloride and 2-n-propyl-4-methyl-6-carboxybenzimidazole: Suspension of 4-methyl-2-n-propyl-1H-benzimidazole-6-carboxylic acid (50 g) in poly(phosphoric acid) (300 g) was heated to 70-75 °C and maintained for 30 minutes. Subsequently, N-methylphthalimide dihydrochloride (45 g) was added in batches for 2 hours and the reaction was continued at 70-75°C for 1 hour. Next, the temperature of the reaction mixture was raised to 130-135°C and maintained for 10 hours. Upon completion of the reaction, the mixture was cooled to 70°C and water (600 mL) was slowly added to maintain the temperature at 60-90°C. Cooling was continued to 30 °C and the pH was adjusted to 8.0-8.5 with an aqueous ammonia solution.Subsequently, the reaction mixture was heated to 50-55 °C and held for 1 h. The solids were collected by filtration and the wet filter cake was washed with hot water (200 ml). The wet filter cake was suspended in water (900 mL), heated to 50-55 °C, stirred for 1 h and filtered, then washed with hot water (100 mL), and the wet filter cake was dried at 70-75 °C to constant weight. The dried product was suspended in methanol (260 mL), heated to 45-50 °C, activated carbon (6.5 g) was added and stirred for 30 min. Insoluble material was removed by filtration through a Hyflo bed, the bed was washed with hot methanol (60 mL), the filtrates were combined and cooled to 25 °C. Water (160 mL) was slowly added to the filtrate at 25-35°C, heated to reflux temperature and held for 1 hour. The reaction mixture was cooled to 0-5 °C and maintained for 2 h. The resulting solid was filtered, washed with methanol (60 mL) and the wet filter cake was dried at 70-75 °C to constant weight to give 54 g of 4-methyl-6-(1-methylbenzimidazol-2-yl)-2- n-propyl-1H-benzimidazole (77.4% yield), with a water content of 5.85% as determined by KF.
References
[1] Patent: WO2007/10558, 2007, A1. Location in patent: Page/Page column 5; 10-11
[2] Journal of Medicinal Chemistry, 1993, vol. 36, # 25, p. 4040 - 4051
[3] European Journal of Medicinal Chemistry, 2016, vol. 115, p. 161 - 178
2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| ShangHai Siyan Biological Technology Co., Ltd. | 021-50908862，442785678，326799392 18721037013 | siyansales@126.com | China | 9612 | 58 |
| Shandong Mingfeng Pharmaceutical and Technology Co. Ltd | 053155551677 15315114555 | 1345456643@qq.com | China | 299 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| INTATRADE GmbH | +49 3493/605464 | sales@intatrade.de | Germany | 3563 | 66 |
| 3B Pharmachem (Wuhan) International Co.,Ltd. | 18930552037 | 3bsc@sina.com | China | 15813 | 69 |
| shilang(zhuoli group)-pharma(nanjing) co.,ltd. | 86-25-87797880,81,82 -809 | shilang@shilang-pharma.com | China | 40 | 55 |
| Beijing HwrkChemical Technology Co., Ltd | 89508211 18501085097 | sales.bj@hwrkchemical.com | China | 9407 | 55 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 | |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
View Latest Price from 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-09-18 | 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
152628-02-9
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-08-21 | 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
152628-02-9
|
$310.00-316.00 | 1kg | 99.99% | 100Tons | Hebei Dangtong Import and export Co LTD | |
 |
2026-08-12 | 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
152628-02-9
|
$115.00 | 25KG | 98% | 1-10mt | Baoji Guokang Healthchem Co., Ltd. |
-
- 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
152628-02-9
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
152628-02-9
- $310.00-316.00
- 99.99%
- Hebei Dangtong Import and export Co LTD
-
- 2-n-Propyl-4-methyl-6-(1-methylbenzimidazole-2-yl)benzimidazole
152628-02-9
- $115.00
- 98%
- Baoji Guokang Healthchem Co., Ltd.
