Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate
- Product Name
- Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate
- CAS No.
- 139481-69-9
- Chemical Name
- Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate
- Synonyms
- Candesartan Methyl Ester;Candesartan Impurity 7;candesartan methyl ester imp;Candesartan Cilexetil impurity I;Candesartan methyl ester impurity;candesartan cilexetil impurity1361;Candesartan Cilexetil EP IMpurity I;Candesartan EP Impurity-I (methyl ester);CANDESARTAN INTERMEDIATES(METHYL ESTER C7);Candesartan Cilexetil Impurity 9(EP Impurity I)
- CBNumber
- CB2949303
- Molecular Formula
- C25H22N6O3
- Formula Weight
- 454.48
- MOL File
- 139481-69-9.mol
Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate Property
- Melting point:
- 169-173°C
- Boiling point:
- 704.5±70.0 °C(Predicted)
- Density
- 1.35±0.1 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Inert atmosphere,2-8°C
- solubility
- Chloroform (Slightly), Methanol (Slightly)
- form
- Solid:particulate/powder
- pka
- 4.15±0.10(Predicted)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
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.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- PHR2022
- Product name
- Candesartan Cilexetil Impurity I
- Purity
- Pharmaceutical Secondary Standard; Certified Reference Material
- Packaging
- 20 mg
- Price
- $411.6
- Updated
- 2025/07/31
- Product number
- FC19664
- Product name
- Candesartan methyl ester
- Packaging
- 5mg
- Price
- $150
- Updated
- 2021/12/16
- Product number
- 6781AA
- Product name
- Methyl1-((2'-(2H-tetrazol-5-yl)-[1,1'-biphenyl]-4-yl)methyl)-2-ethoxy-1H-benzo[d]imidazole-7-carboxylate
- Packaging
- 10g
- Price
- $201
- Updated
- 2021/12/16
- Product number
- FC19664
- Product name
- Candesartan methyl ester
- Packaging
- 10mg
- Price
- $272.6
- Updated
- 2021/12/16
- Product number
- FC19664
- Product name
- Candesartan methyl ester
- Packaging
- 25mg
- Price
- $496
- Updated
- 2021/12/16
Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate Chemical Properties,Usage,Production
Chemical Properties
Off-White Solid
Uses
Candesartan Methyl Ester (Candesartan Cilexetil EP Impurity I) is an intermediate in the preparation of Candesartan (C175575).
Synthesis
139481-44-0
139481-69-9
1. Methyl 2-ethoxy-1-[(2'-cyanobiphenyl-4-yl)methyl]-1H-benzimidazole-7-carboxylate (310 g) and toluene (2.48 L) were added to a reactor, followed by tributyltin chloride (737 g), sodium azide (146 g) and tetrabutylammonium bromide (31 g). 2. The reaction mixture was slowly heated to 110 °C and maintained at 110-115 °C for 24 h, during which the progress of the reaction was monitored by TLC. 3. After completion of the reaction, the reaction mixture was cooled to 15 °C and methanol (3.1 L), water (2.17 L) and acetic acid (930 g) were added sequentially. 4. The mixture was stirred at 15-20 °C for 1 h to promote product separation. 5. After addition of toluene (1.24 L), the reaction mixture was filtered at 15-20 °C. 6. the filter cake was washed thoroughly with water (0.93 L) until the pH of the wash solution reached 5.5-7.0 to completely remove the acid. 7. The filter cake was washed again with toluene (0.62 L) and dried by suction filtration. 8. The product was air dried at 50-55 °C to give methyl 2-ethoxy-1-[[(2'-(1H-tetrazol-5-yl)biphenyl-4-yl)methyl]benzimidazole]-7-carboxylate. Yield: 290 g (85%).
IC 50
AT2 Receptor: 0.11 μM (IC50)
References
[1] Journal of Medicinal Chemistry, 1993, vol. 36, # 15, p. 2182 - 2195
[2] Patent: WO2005/51929, 2005, A1. Location in patent: Page/Page column 18
[3] Patent: US2009/203920, 2009, A1. Location in patent: Page/Page column 4
[4] Patent: EP1420016, 2004, A1. Location in patent: Page 19
[5] Patent: WO2009/157001, 2009, A2. Location in patent: Page/Page column 3
Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate manufacturers
- Product
- Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate 139481-69-9
- Price
- US $0.10/KG
- Min. Order
- 1KG
- Purity
- 99.0%
- Supply Ability
- 1000 tons
- Release date
- 2020-04-24
- Product
- Ethyl-2-Ethoxy-1-[[(2'-(1h-Tetrazol-5-Yl)Biphenyl-4-Yl)Methyl]Benzimidazole]-7-Carboxylate 139481-69-9
- Price
- US $30.00-28.00/Kg
- Min. Order
- 1Kg
- Purity
- 99.0% up
- Supply Ability
- 50 tons per month
- Release date
- 2022-09-28
- Product
- Candesartan Methyl Ester 139481-69-9
- Price
- US $1.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%+
- Supply Ability
- 100 tons
- Release date
- 2019-12-26