Introduction：Basic information about CAS 175202-55-8|3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.
| 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 |
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| Density | 1.6g/cm3 | Boiling Point | 538ºC at 760mmHg |
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| Molecular Formula | C10H8O4S2 | Melting Point | >360°C |
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| MSDS | / | Flash Point | 279.2ºC |
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Names
| Name | 3,4-dimethylthieno[2,3-b]thiophene-2,5-dicarboxylic acid |
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| Synonym | More Synonyms |
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Chemical & Physical Properties
| Density | 1.6g/cm3 |
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| Boiling Point | 538ºC at 760mmHg |
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| Melting Point | >360°C |
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| Molecular Formula | C10H8O4S2 |
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| Molecular Weight | 256.29800 |
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| Flash Point | 279.2ºC |
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| Exact Mass | 255.98600 |
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| PSA | 131.08000 |
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| LogP | 2.97600 |
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| Vapour Pressure | 2.08E-12mmHg at 25°C |
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| Index of Refraction | 1.736 |
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| InChIKey | JARLNIWLMPUVAR-UHFFFAOYSA-N |
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| SMILES | Cc1c(C(=O)O)sc2sc(C(=O)O)c(C)c12 |
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Safety Information
| Risk Phrases | R36/37/38:Irritating to eyes, respiratory system and skin . |
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| Safety Phrases | S26-S36/37/39 |
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| HS Code | 2934999090 |
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Customs
| 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% |
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Synonyms
| 3,4-Dimethylthieno(2,3-b)thiophene-2,5-dicarboxylic acid |
| 3,4-dimethylthiopheno[2,3-b]thiophene-2,5-dicarboxylic acid |
| MFCD00067989 |
