203856-34-2

Basic information

• Product Name: Benzoic acid, 4-[(1E)-2-(3,4-dihydro-2-octyl-2H-1-benzothiopyran-6-yl)-1-propenyl]-, ethyl ester
• CAS NO: 203856-34-2
• Molecular Formula: C29H38O2S
• Molecular Weight: 450.686
• Mol File: 203856-34-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzoic acid, 4-[(1E)-2-(3,4-dihydro-2-octyl-2H-1-benzothiopyran-6-yl)-1-propenyl]-, ethyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Benzoic acid, 4-[(1E)-2-(3,4-dihydro-2-octyl-2H-1-benzothiopyran-6-yl)-1-propenyl]-, ethyl ester(203856-34-2)
• EPA Substance Registry System: Benzoic acid, 4-[(1E)-2-(3,4-dihydro-2-octyl-2H-1-benzothiopyran-6-yl)-1-propenyl]-, ethyl ester(203856-34-2)

Safety Data

• Hazardous Substances Data: 203856-34-2(Hazardous Substances Data)

Upstream product

• 73435-46-8 3,4-dihydro-2-n-octyl-2H-1-benzothiopyran 
• 203856-33-1 3,4-dihydro-2-n-octyl-2H-1-benzothiopyran-1-oxide 
• 197379-77-4 6-acetyl-2-n-octylthiochroman 
• 197379-78-5 2-n-octylthiochroman-6-ethanol 
• 3528-17-4 2,3-dihydro-4H-[1]benzothiopyran-4-one 
• 26524-85-6 2,3-dihydro-4H-1-benzothio-pyran S-oxide 
• 2054-35-5 thiochromane 
• 6287-86-1 p-ethoxycarbonylbenzaldehyde 

Relevant articles and documents

Novel chiral, sulfur-containing heteroarotinoids with liquid crystal properties

Synthetic methods were developed to prepare ethyl (E)-4-[2-(3,4-dihydro-2-n-octyl-1-oxy-2H-1-benzothio-pyran-6-yl)-1- propenyl]-benzoate (1) and ethyl ( E)-4-[2-(3,4-dihydro-2-n-octyl-2H-1-benzothiopyran-6-yl)-1-propenyl]benzoate (10). These are the first examples of heteroarotinoids which possess properties of liquid crystals. The properties were evaluated using differential scanning calorimetry and by use of polarizing micrography. Both displayed textures which are typical of a smectic or cholesteric phase.