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1723-27-9 thieno[3,2-b]thiophene-2-carboxylic acid

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Product Name thieno[3,2-b]thiophene-2-carboxylic acid
CAS No. 1723-27-9
InChI InChI=1/C7H4O2S2/c8-7(9)6-3-5-4(11-6)1-2-10-5/h1-3H,(H,8,9)
Molecular Formula C7H4O2S2
Molecular Weight 184.2355
Density 1.601g/cm3
Melting point 218℃
Boiling point 386.7°C at 760 mmHg
Flash point 187.6°C
Refractive index 1.769
Hazard Symbols Xi:Irritant;
Risk Codes R36/37/38:Irritating to eyes, respiratory system and skin.;
Safety S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.; S37/39:Wear suitable gloves and eye/face protection.;