ChemicalBook > CAS DataBase List > 4-Benzoxazolecarboxylic acid

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
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4-Benzoxazolecarboxylic acid Property

storage temp. 
Sealed in dry,Room Temperature
Appearance
Off-white to light brown Solid
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Safety

HS Code 
2934999090
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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.

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N-Bromosuccinimide Price

TRC
Product number
B331395
Product name
Benzo[d]oxazole-4-carboxylicacid
Packaging
10mg
Price
$45
Updated
2021/12/16
AK Scientific
Product number
0676AB
Product name
Benzo[d]oxazole-4-carboxylicacid
Packaging
250mg
Price
$176
Updated
2021/12/16
AK Scientific
Product number
0676AB
Product name
Benzo[d]oxazole-4-carboxylicacid
Packaging
1g
Price
$409
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
CHM0391834
Product name
BENZO[D]OXAZOLE-4-CARBOXYLIC ACID
Purity
95.00%
Packaging
5MG
Price
$496.1
Updated
2021/12/16
Medical Isotopes, Inc.
Product number
35850
Product name
Benzo[d]oxazole-4-carboxylicacid
Purity
95+%
Packaging
250mg
Price
$612
Updated
2021/12/16
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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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4-Benzoxazolecarboxylic acid Suppliers

Carbott PharmTech Inc.
Tel
0535-6385396
Fax
+86 (535) 638-9971
Email
info@carbottpharm.com
Country
China
ProdList
957
Advantage
56
Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9658
Advantage
60
Shanghai Xiannuo Biotechnology Co., Ltd.
Tel
021-50718719 13918719472
Fax
021-50718719
Country
China
ProdList
979
Advantage
58
Shanghai Keepontech Co.,Ltd
Tel
021-54849683 13601642561
Fax
+86-21-54375689
Email
sales@keepontech.com
Country
China
ProdList
998
Advantage
59
ShangHai AmK Pharmaceutical Technology Co., Ltd.
Tel
微信 17321281695 18019252918
Fax
17321281695
Email
sale@amkchem.com
Country
China
ProdList
15136
Advantage
55
Cool Pharm, Ltd
Tel
021-60455363 18019463053
Fax
50966098
Email
sales@coolpharm.com
Country
China
ProdList
12346
Advantage
58
Shanghai Kahn Pharmaceutical Co., Ltd.
Tel
021-34979681; 17701870669
Fax
021-34979681
Email
41513101@qq.com
Country
China
ProdList
1785
Advantage
55
Changzhou Hopschain Chemical Co.,Ltd.
Tel
0519-85528066 13775048983
Fax
0519-85528066
Email
sales@hopschem.com
Country
China
ProdList
31553
Advantage
55
Jinan elephant international trading co., LTD
Tel
Fax
-
Email
13006575422@163.com
Country
China
ProdList
6355
Advantage
58
Amadis Chemical Company Limited
Tel
571-89925085
Fax
0086-571-89925065
Email
sales@amadischem.com
Country
China
ProdList
131957
Advantage
58
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View Lastest Price from 4-Benzoxazolecarboxylic acid manufacturers

Career Henan Chemical Co
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