4-Benzoxazolecarboxylic acid
- Product Name
- 4-Benzoxazolecarboxylic acid
- CAS No.
- 208772-23-0
- Chemical Name
- 4-Benzoxazolecarboxylic acid
- Synonyms
- 4-Benzoxazolecarboxylic acid;Benzooxazole-4-carboxylic acid;1,3-Benzoxazole-4-carboxylic acid;Benzo[d]oxazole-4-carboxylic acid
- CBNumber
- CB72554027
- Molecular Formula
- C8H5NO3
- Formula Weight
- 163.13
- MOL File
- 208772-23-0.mol
4-Benzoxazolecarboxylic acid Property
- storage temp.
- Sealed in dry,Room Temperature
- Appearance
- Off-white to light brown Solid
Safety
- HS Code
- 2934999090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
N-Bromosuccinimide Price
- Product number
- B331395
- Product name
- Benzo[d]oxazole-4-carboxylicacid
- Packaging
- 10mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- 0676AB
- Product name
- Benzo[d]oxazole-4-carboxylicacid
- Packaging
- 250mg
- Price
- $176
- Updated
- 2021/12/16
- Product number
- 0676AB
- Product name
- Benzo[d]oxazole-4-carboxylicacid
- Packaging
- 1g
- Price
- $409
- Updated
- 2021/12/16
- Product number
- CHM0391834
- Product name
- BENZO[D]OXAZOLE-4-CARBOXYLIC ACID
- Purity
- 95.00%
- Packaging
- 5MG
- Price
- $496.1
- Updated
- 2021/12/16
- Product number
- 35850
- Product name
- Benzo[d]oxazole-4-carboxylicacid
- Purity
- 95+%
- Packaging
- 250mg
- Price
- $612
- Updated
- 2021/12/16
4-Benzoxazolecarboxylic acid Chemical Properties,Usage,Production
Synthesis
906096-11-5
122-51-0
208772-23-0
Step A: 2-Amino-3-hydroxybenzoic acid hydrobromide (300 mg, 1.28 mmol), triethyl orthoformate (0.85 mL, 5.1 mmol), pyridinium p-toluenesulfonate (64 mg, 0.26 mmol), and xylene (15 mL) were added to the reaction flask, and the mixture reacted for 4 hr under reflux conditions. Upon completion of the reaction, the reaction mixture was cooled to room temperature and subsequently concentrated under reduced pressure to afford benzo[D]oxazole-4-carboxylic acid (210 mg, quantitative yield), the product was a light yellow solid. The product was characterized by 1H NMR (300 MHz, DMSO-d6): δ 13.12 (s, 1H), 8.86 (s, 1H), 8.03 (dd, J = 8.1, 0.9 Hz, 1H), 7.92 (dd, J = 8.1, 0.9 Hz, 1H), 7.54 (t, J = 8.1 Hz, 1H); the mass spectrometry (ESI+) showed m/ z 164 ([M + H]+).
References
[1] Patent: US2008/214601, 2008, A1. Location in patent: Page/Page column 14-15
4-Benzoxazolecarboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4-Benzoxazolecarboxylic acid manufacturers
- Product
- 4-Benzoxazolecarboxylic acid 208772-23-0
- Price
- US $0.01/KG
- Min. Order
- 1KG
- Purity
- 98%; 99%
- Supply Ability
- 500g; 1kg; 25kg
- Release date
- 2020-01-10