PPT

• CAT Number: M144251
• CAS Number: 1019842-99-9
• Molecular Formula: C36H26O2P2S
• Molecular Weight: 584.60
• Purity: ≥95%
• Synonyms: 2,8-Bis(diphenylphosphoryl)dibenzo[b,d]thiophene
• Storage: Room Temperature (Recommended in a cool and dark place)
• IUPAC Name: 2,8-bis(diphenylphosphoryl)dibenzothiophene
• InChI: InChI=1S/C36H26O2P2S/c37-39(27-13-5-1-6-14-27,28-15-7-2-8-16-28)31-21-23-35-33(25-31)34-26-32(22-24-36(34)41-35)40(38,29-17-9-3-10-18-29)30-19-11-4-12-20-30/h1-26H
• InChIKey: ZCJJIQHVZCFSGZ-UHFFFAOYSA-N
• SMILES: C1=CC=C(C=C1)P(=O)(C2=CC=CC=C2)C3=CC4=C(C=C3)SC5=C4C=C(C=C5)P(=O)(C6=CC=CC=C6)C7=CC=CC=C7

2,8-Bis(diphenylphosphoryl)dibenzo[b,d]thiophene (PPT)(CAT: M144251) is a high-performance organic semiconductor widely used as a host material in phosphorescent and thermally activated delayed fluorescence (TADF) organic light-emitting diodes (OLEDs). Its rigid dibenzothiophene core, combined with electron-withdrawing diphenylphosphine oxide groups, provides excellent thermal stability, high triplet energy, and efficient charge-transport balance. PPT is particularly effective as a host for blue and green emitters, enabling enhanced device efficiency, stability, and operational lifetime. Beyond OLEDs, it finds application in organic photonics and thin-film electronics where reliable charge management is essential. With strong stability and versatile compatibility, PPT is a key material in next-generation optoelectronic technologies.