ADS306PT is a regioregular poly(3-hexyl-thiophene-2,5-diyl). ADS306PT is commonly referred to as P3HT. Appearance: Red-Green Fibers Molecular Weight: 20,000 – 70,000 Melting point: N/A Abs (Maximum absorption): 442 nm (in THF) Photo Luminescence: 564 nm (in THF), 642 nm (film) Recommended Solvents: THF, Toluene