4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE
- Product Name
- 4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE
- CAS No.
- 41498-07-1
- Chemical Name
- 4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE
- Synonyms
- 4-BroMo-5-nitrothiophene-2-carbaldehyde;4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE;4-BROMO-5-NITRO-2-THIOPHENECARBOXALDEHYDE;2-Thiophenecarboxaldehyde, 4-bromo-5-nitro-;4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE ISO 9001：2015 REACH
- CBNumber
- CB52465488
- Molecular Formula
- C5H2BrNO3S
- Formula Weight
- 236.04
- MOL File
- 41498-07-1.mol
4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE Property
- storage temp.
- under inert gas (nitrogen or Argon) at 2–8 °C
- Appearance
- Light yellow to yellow Solid
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 8405CZ
- Product name
- 4-Bromo-5-nitrothiophene-2-carbaldehyde
- Packaging
- 250mg
- Price
- $104
- Updated
- 2021/12/16
- Product number
- 8405CZ
- Product name
- 4-Bromo-5-nitrothiophene-2-carbaldehyde
- Packaging
- 1g
- Price
- $151
- Updated
- 2021/12/16
- Product number
- 8405CZ
- Product name
- 4-Bromo-5-nitrothiophene-2-carbaldehyde
- Packaging
- 25g
- Price
- $589
- Updated
- 2021/12/16
- Product number
- HCH0037049
- Product name
- 4-BROMO-5-NITRO-2-THIOPHENECARBOXALDEHYDE
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $909.56
- Updated
- 2021/12/16
- Product number
- HCH0037049
- Product name
- 4-BROMO-5-NITRO-2-THIOPHENECARBOXALDEHYDE
- Purity
- 95.00%
- Packaging
- 10G
- Price
- $1334.03
- Updated
- 2021/12/16
4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE Chemical Properties,Usage,Production
Synthesis
18791-75-8
41498-07-1
General procedure for the synthesis of 4-bromo-5-nitro-2-thiophenecarboxaldehyde from 4-bromo-2-thiophenecarboxaldehyde: A nitration reagent was prepared by dissolving potassium nitrate (110 g, 1.09 mol) in concentrated sulfuric acid (550 mL). The above nitration reagent was slowly added to a mixed solution of anhydrous dichloromethane (5 mL) and concentrated sulfuric acid (1.1 L) containing 4-bromo-2-thiophenecarboxaldehyde (207.6 g, 1.08 mol) at 0 °C, and the addition process was controlled to be completed within 45 min. The reaction mixture was continued to be stirred at 0 °C for 2 h, followed by raising to room temperature and stirring overnight. Upon completion of the reaction, the mixture was slowly poured into ice water, the precipitate was collected by filtration and washed sequentially with water and hexane. The resulting yellow solid was dried overnight to afford the target product 4-bromo-5-nitro-2-thiophenecarboxaldehyde (251.4 g, 98.6% yield). The structure of the product was confirmed by 1H-NMR (DMSO-d6): δ 9.90 (s, 1H, aldehydic hydrogen), 8.56 (s, 1H, thiophene cyclohexane).
References
[1] Patent: US2004/9995, 2004, A1
[2] Patent: WO2003/99805, 2003, A1. Location in patent: Page 384
[3] Patent: WO2006/101860, 2006, A1. Location in patent: Page/Page column 91-92
[4] Patent: US2013/324501, 2013, A1. Location in patent: Paragraph 0327; 0328
[5] Patent: WO2013/182451, 2013, A1. Location in patent: Page/Page column 85
4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE manufacturers
- Product
- 4-BROMO-5-NITROTHIOPHENE-2-CARBOXALDEHYDE 41498-07-1
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 95-99%
- Supply Ability
- 1ton
- Release date
- 2019-12-31