| CAS Number | 632-15-5 |
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| Molecular Formula | C6H8S |
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| Molecular Weight | 112.19 g/mol |
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| Melting Point | 50-54 °C |
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| Boiling Point | 147 °C |
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| Density | 1.006 g/cm³ |
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| Refractive Index | 1.5187 |
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| SMILES | Cc1cscc1C |
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| InChIKey | GPSFYJDZKSRMKZ-UHFFFAOYSA-N |
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| Description | 3,4-Dimethylthiophene, a thiophene derivative with two methyl groups. The 3,4-methyl groups block primary electrophilic substitution sites, directing reactions to 2,5-positions. |
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| Applications | Pharmaceutical intermediate; thiophene; aromatic heterocycle |
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| Hazard Class | Flam. Liq. 3; Skin Irrit. 2; Eye Irrit. 2; STOT SE 3 (Resp) |
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| Hazard Statements | H226; H315; H319; H335 |
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| Precautionary Statements | P210; P233; P240; P241; P242; P243; P261; P264; P271; P280; P303+P361+P353; P304+P340; P305+P351+P338; P312; P321; P332+P313; P337+P313; P362; P370+P378; P403+P235; P405; P501 |
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