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![*Dinaphtho[2,1-b;1',2'-d]thiophene, 25 µg/mL in toluene, CAS # 194-65-0, 1 mL](http://chromspec.com/cdn/shop/files/chiron_962c0f2f-ea1d-4127-b563-da29e2214938.jpg?v=1752969747&width=533)
![*Benzo[b]naphtho[1,2-d]thiophene, 1000 µg/mL in Toluene, CAS # 205-43-6, 1 mL](http://chromspec.com/cdn/shop/files/chiron_0f8488bb-cbda-416d-bbd1-1d9c92e1442d.jpg?v=1752969743&width=533)
