- Shanghai Nianxing Industrial Co., Ltd
- China
- Product Name: 3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid
- Price: Check
- Purity: 97.0%
- Stocking Period: 10 Day
- Contact: Yang
- Email: sales@echemcloud.com
- Shanghai Jizhi Biochemical Technology Co., Ltd
- China
- Product Name: 3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid
- Price: ￥686.0/100mg ￥1096.0/250mg ￥2746.0/1g
- Purity: 95.0%
- Stocking Period: 1 Day
- Contact: Liu jia
- Email: 2130147988@qq.com
- Dayang Chem (Hangzhou) Co., Ltd.
- China
- Product Name: 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-6-CARBOXYLIC ACID
- Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
- Purity: 98.0%
- Stocking Period: Inquiry
- Contact: Ms Wang
- Email: enquiry@dycnchem.com
134997-87-8
134997-87-8 structure
- Name: 3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid
- Chemical Name: 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carboxylic acid
- CAS Number: 134997-87-8
- Molecular Formula: C9H7NO4
- Molecular Weight: 193.156
- Create Date: 2018-12-20 17:53:00
- Modify Date: 2025-08-22 16:38:12
| Name | 3-Oxo-3,4-dihydro-2H-benzo[b][1,4]oxazine-6-carboxylic acid |
|---|---|
| Synonyms |
3-Oxo-3,4-dihydro-2H-1,4-benzoxazine-6-carboxylic acid
3-oxo-4H-1,4-benzoxazine-6-carboxylic acid 2H-1,4-Benzoxazine-6-carboxylic acid, 3,4-dihydro-3-oxo- 3-Oxo-3,4-dihydro-2H-benzo[1,4]oxazine-6-carboxylic acid |
| Density | 1.5±0.1 g/cm3 |
|---|---|
| Boiling Point | 471.4±45.0 °C at 760 mmHg |
| Melting Point | 310-314℃ |
| Molecular Formula | C9H7NO4 |
| Molecular Weight | 193.156 |
| Flash Point | 238.9±28.7 °C |
| Exact Mass | 193.037506 |
| PSA | 75.63000 |
| LogP | 0.87 |
| Vapour Pressure | 0.0±1.2 mmHg at 25°C |
| Index of Refraction | 1.609 |
| Hazard Codes | Xn |
|---|---|
| HS Code | 2934999090 |
|
~92%
134997-87-8 |
| Literature: Goodman, Krista B.; Neeb, Michael J.; Sehon, Clark A.; Viet, Andrew Q.; Wang, Gren Z. Patent: US2008/21023 A1, 2008 ; Location in patent: Page/Page column 122-123 ; US 20080021023 A1 |
|
~%
134997-87-8 |
| Literature: Justus Liebigs Annalen der Chemie, , vol. 311, p. 168 |
|
~73%
134997-87-8 |
| Literature: TAKEDA CHEMICAL INDUSTRIES, LTD. Patent: WO2004/46107 A1, 2004 ; Location in patent: Page 209-210 ; WO 2004/046107 A1 |
|
~%
134997-87-8 |
| Literature: Journal of the American Chemical Society, , vol. 48, p. 464 |
|
~%
134997-87-8 |
| Literature: Justus Liebigs Annalen der Chemie, , vol. 311, p. 168 |
|
~%
134997-87-8 |
| Literature: Justus Liebigs Annalen der Chemie, , vol. 311, p. 168 |
| Precursor 6 | |
|---|---|
| DownStream 2 | |
![ETHYL 3-OXO-3,4-DIHYDRO-2H-BENZO[B][1,4]OXAZINE-6-CARBOXYLATE structure](https://image.chemsrc.com/caspic/100/604756-32-3.png)
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |