1. 2-Nitro thiophene CAS: 609-40-5
2. 2-Chloro thiophene CAS: 96-43-5
3. 3-Chloro thiophene CAS: 17249-80-8
4. 2,5-Dichloro thiophene CAS: 3172-52-9
5. Tetra chloro thiophene CAS: 6012-97-1
6. 2-Chloro-3-bromo thiophene CAS: 40032-73-3
7. 2-Bromo thiophene CAS: 1003-09-4
8. 3-Bromo thiophene CAS: 872-31-1