55503-32-7
55503-32-7 structure
- Name: 4-HYDROXY-THIENO[2,3-B]PYRIDINE-5-CARBOXYLIC ACID
- Chemical Name: 4-oxo-7H-thieno[2,3-b]pyridine-5-carboxylic acid
- CAS Number: 55503-32-7
- Molecular Formula: C8H5NO3S
- Molecular Weight: 195.19500
- Create Date: 2018-12-18 16:31:28
- Modify Date: 2025-08-26 13:49:48
| Name | 4-oxo-7H-thieno[2,3-b]pyridine-5-carboxylic acid |
|---|---|
| Synonyms | 4-hydroxythieno<2,3-b>pyridine-5-carboxylic acid |
| Density | 1.665g/cm3 |
|---|---|
| Boiling Point | 435.699ºC at 760 mmHg |
| Molecular Formula | C8H5NO3S |
| Molecular Weight | 195.19500 |
| Flash Point | 217.303ºC |
| Exact Mass | 194.99900 |
| PSA | 98.66000 |
| LogP | 1.70010 |
| Index of Refraction | 1.784 |
| HS Code | 2934999090 |
|---|
|
~%
55503-32-7 |
| Literature: Khan,M.A.; Guarconi,A.E. Journal of Heterocyclic Chemistry, 1977 , vol. 14, p. 807 - 812 |
|
~%
55503-32-7 |
| Literature: Khan,M.A.; Guarconi,A.E. Journal of Heterocyclic Chemistry, 1977 , vol. 14, p. 807 - 812 |
| Precursor 2 | |
|---|---|
| DownStream 6 | |
![Thieno[2,3-b]pyridin-4(7H)-one structure](https://image.chemsrc.com/caspic/331/65075-96-9.png)
![7-METHYL-4-OXO-4,7-DIHYDROTHIENO[2,3-B]PYRIDINE-5-CARBOXYLIC ACID structure](https://image.chemsrc.com/caspic/037/67637-78-9.png)
![7-BENZYL-4-OXO-4,7-DIHYDROTHIENO[2,3-B]PYRIDINE-5-CARBOXYLIC ACID structure](https://image.chemsrc.com/caspic/489/67637-79-0.png)
![4-oxo-7-propylthieno[2,3-b]pyridine-5-carboxylic acid structure](https://image.chemsrc.com/caspic/134/67637-80-3.png)
![7-ETHYL-4,7-DIHYDRO-4-OXO-THIENO[2,3-B]-PYRIDINE-5-CARBOXYLIC ACID structure](https://image.chemsrc.com/caspic/016/55503-33-8.png)
![4-Chlorothieno[2,3-b]pyridine structure](https://image.chemsrc.com/caspic/473/62226-17-9.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% |