1359769-20-2

Basic information

• Product Name: C₂₁H₂₂O₅
• CAS NO: 1359769-20-2
• Molecular Weight: 354.403
• Mol File: 1359769-20-2.mol

Chemical Properties

• CAS DataBase Reference: C₂₁H₂₂O₅(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₁H₂₂O₅(1359769-20-2)
• EPA Substance Registry System: C₂₁H₂₂O₅(1359769-20-2)

Safety Data

• Hazardous Substances Data: 1359769-20-2(Hazardous Substances Data)

Upstream product

• 123-08-0 4-hydroxy-benzaldehyde 
• 99-96-7 4-hydroxy-benzoic acid 
• 1498-96-0 4-butoxybenzoic acid 
• 3943-97-3 methyl p-hydroxycinnamate 
• 33863-86-4 4-(n-butyloxy)benzoyl chloride 
• 7400-08-0 para-coumaric acid 

Relevant articles and documents

Study of mesomorphism and its relation to molecular structure with special reference to central bridges viz. -COO- and -CH=CH-COO- of the homologous series

Two ester homologous series of mesogens, viz., Methyl-p-(p′-n-alkoxy benzoyloxy) cinnamates (X) and Methyl-p-(p′-n-alkoxy cinnamoyloxy) cinnamates (Y) being structurally similar are discussed. Both (X) and (Y) differ in respect of central bridges linking two phenyl rings. Only enantiotropic nematogenic character is observed without exhibition of any smectic character by all members of series (X) and (Y). Thermal stability of series (X) is relatively low as compared to (Y), but nematogenic mesophase lengths are of reverse order. Solid-nematic/solid-isotropic and nematic-isotropic transition curves in the phase diagrams behave in normal manner.

Synthesis and mesomorphism of novel liquid crystalline: P-(p'-n-Alkoxy Benzoyloxy) methyl cinnamates

A new homologous series p-(p'-n-alkoxy benzoyloxy) methyl cinnamates is synthesized with a view to understand and establish the relation between mesogenic properties and structure of molecules. Ethyl to octyl, decyl, dodecyl, tetradecyl, and hexadecyl homolgues are enantiotropically nematogenic, while the methyl homologue is nonmesogenic. None of the homologues exhibit a smectogenic mesophase. An odd-even effect is observed in the nematic-isotropic transition curve. The average thermal stability is 105.0C and the nematogenic mesophase ranges from 11.0C to 54.0C. Thus, the series is of a middle ordered melting type with moderate nematogenic range. Analytical data confirm the structure of the compounds, and the mesomorphism was identified by optical microscopy. The mesogenic properties are compared with structurally similar compounds. Copyright Taylor &Francis Group, LLC.