3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid
Modify Date: 2025-08-24 22:57:27
3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid structure
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Common Name | 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid | ||
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| CAS Number | 175202-55-8 | Molecular Weight | 256.29800 | |
| Density | 1.6g/cm3 | Boiling Point | 538ºC at 760mmHg | |
| Molecular Formula | C10H8O4S2 | Melting Point | >360°C | |
| MSDS | N/A | Flash Point | 279.2ºC | |
| Name | 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid |
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| Synonym | More Synonyms |
| 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 . |
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| Safety Phrases | S26-S36/37/39 |
| HS Code | 2934999090 |
| HS Code | 2934999090 |
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| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
| 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid |
| 3,4-dimethylthiopheno[2,3-b]thiophene-2,5-dicarboxylic acid |
| MFCD00067989 |