175202-55-8
175202-55-8 structure
- Name: 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid
- Chemical Name: 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid
- CAS Number: 175202-55-8
- Molecular Formula: C10H8O4S2
- Molecular Weight: 256.29800
- Create Date: 2018-12-18 09:58:58
- Modify Date: 2024-04-05 20:24:09
| Name | 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid |
|---|---|
| Synonyms |
3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid
3,4-dimethylthiopheno[2,3-b]thiophene-2,5-dicarboxylic acid MFCD00067989 |
| Density | 1.6g/cm3 |
|---|---|
| Boiling Point | 538ºC at 760mmHg |
| Melting Point | >360°C |
| Molecular Formula | C10H8O4S2 |
| Molecular Weight | 256.29800 |
| Flash Point | 279.2ºC |
| Exact Mass | 255.98600 |
| PSA | 131.08000 |
| LogP | 2.97600 |
| Vapour Pressure | 2.08E-12mmHg at 25°C |
| Index of Refraction | 1.736 |
| Risk Phrases | R36/37/38:Irritating to eyes, respiratory system and skin . |
|---|---|
| Safety Phrases | S26-S36/37/39 |
| HS Code | 2934999090 |
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |