949934-65-0

Basic information

• Product Name: C₁₈H₁₉NO₆S
• Synonyms: C₁₈H₁₉NO₆S
• CAS NO: 949934-65-0
• Molecular Weight: 377.418
• Mol File: 949934-65-0.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₁₈H₁₉NO₆S(CAS DataBase Reference)
• NIST Chemistry Reference: C₁₈H₁₉NO₆S(949934-65-0)
• EPA Substance Registry System: C₁₈H₁₉NO₆S(949934-65-0)

Safety Data

• Hazardous Substances Data: 949934-65-0(Hazardous Substances Data)

Upstream product

• 6253-28-7 3,6-epoxy-1,2,3,6-tetrahydrophthalimide 
• 5469-66-9 propane-1,3-diol ditosylate 

Relevant articles and documents

Structure-dependent cis/trans isomerization of tetraphenylethene derivatives: Consequences for aggregation-induced emission

The isomerization and optical properties of the cis and trans isomers of tetraphenylethene (TPE) derivatives with aggregation-induced emission (AIEgens) have been sparsely explored. We have now observed the tautomerization-induced isomerization of a hydroxy-substituted derivative, TPETH-OH, under acidic but not under basic conditions. Replacing the proton of the hydroxy group in TPETH-OH with an alkyl group leads to the formation of TPETH-MAL, for which the pure cis and trans isomers were obtained and characterized by HPLC analysis and NMR spectroscopy. Importantly, cis-TPETH-MAL emits yellow fluorescence in DMSO at -20 °C whereas trans-TPETH-MAL shows red fluorescence under the same conditions. Moreover, the geometry of cis- and trans-TPETH-MAL remains unchanged when they undergo thiol-ene reactions to form cis- and trans-TPETH-cRGD, respectively. Collectively, our findings improve our fundamental understanding of the cis/trans isomerization and photophysical properties of TPE derivatives, which will guide further AIEgen design for various applications. The cis and trans isomers of a tetraphenylethene derivative with aggregation-induced emission, TPETH-MAL, were characterized by HPLC analysis and NMR spectroscopy. cis-TPETH-MAL emits yellow fluorescence in DMSO at -20 °C whereas trans-TPETH-MAL shows red fluorescence under the same conditions.