62452-73-7

Basic information

• Product Name: 1-Eth-1-ynyl-4-propylbenzene
• Synonyms: 4-Ethynylpropylbenzene;P-PROPYLETHYNYLBENZENE;4-Propylphenylacetylen (1-Eth-1-ynyl-4-propylbenzene);1-Ethynyl-4-n-propylbenzene;P-PROPYLPHENYLACETYLENE;4-PROPYLPHENYLACETYLENE;4-N-PROPYLPHENYLACETYLENE;1-ETHYNYL-4-PROPYL-BENZENE
• CAS NO: 62452-73-7
• Molecular Formula: C₁₁H₁₂
• Molecular Weight: 144.21
• Product Categories: blocks;Miscellaneous;Phenyls & Phenyl-Het;Acetylenes;Acetylenic Hydrocarbons having Benzene Ring;Phenyls & Phenyl-Het;Liquid crystal intermediates;Aromatic Compounds
• Mol File: 62452-73-7.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 205℃
• Flash Point: 67°(153°F)
• Appearance: Yellow liquid
• Density: 0.91
• Vapor Pressure: 0.368mmHg at 25°C
• Refractive Index: 1.5340
• Storage Temp.: Store Cold
• Sensitive: Light Sensitive
• CAS DataBase Reference: 1-Eth-1-ynyl-4-propylbenzene(CAS DataBase Reference)
• NIST Chemistry Reference: 1-Eth-1-ynyl-4-propylbenzene(62452-73-7)
• EPA Substance Registry System: 1-Eth-1-ynyl-4-propylbenzene(62452-73-7)

Safety Data

• Hazard Codes: Xi,F
• Statements: 36/37/38
• Safety Statements: 26-37/39
• Hazardous Substances Data: 62452-73-7(Hazardous Substances Data)

Usage

Chemical Properties

Pale yellow liquid

Uses

Intermediates of Liquid Crystals

InChI:InChI=1/C11H12/c1-3-5-11-8-6-10(4-2)7-9-11/h2,6-9H,3,5H2,1H3

Upstream product

• 469859-77-6 1-(4-n-propylphenyl)-2-trimethylsilylacetylene 
• 141743-48-8 4-n-Propyl-β,β'-dibromostyrene 

Downstream Products

• 170739-85-2 (E)-Chloro-4-(4-propylphenyl)buten-3-yne 
• 107394-89-8 4-(4-propylphenylethynyl)phenol 
• 369363-64-4 4-(4-propylphenyl)-1H-1,2,3-triazole 
• 469859-06-1 1-[4-(tert-butoxycarbonyloxy)phenyl]-2-(4-n-propylphenyl)acetylene 
• 247924-86-3 1-fluoro-2-trifluoromethoxy-6-[(4-propylphenyl)ethynyl]naphthalene 
• 333986-04-2 4-[2-(4-propylphenyl)-1-ethynyl]phenyl 4-[3-(acryloyloxy)propoxy]benzoate 
• 1190605-19-6 C₂₆H₂₉N₃O₉ 
• 1262033-55-5 (4-propylphenyl)propiolic acid hexyl ester 
• 1225707-81-2 3-(4-propylphenyl)propiolic acid 
• 121034-51-3 (4-n-propylphenyl)acetaldehyde 
• 1351822-70-2 C₂₅H₂₄N₂O₂ 
• 1360600-96-9 3β-acetoxy-15β-[4-(4-n-propylphenyl)-1H-1,2,3-triazol-1-yl]-5α-androstan-17β-ol 
• 1360601-00-8 3β-acetoxy-15β-[4-(4-n-propylphenyl)-1H-1,2,3-triazol-1-yl]-5α-androstan-17-one 
• 1384869-02-6 C₂₆H₂₀F₂ 

Relevant articles and documents

Optically active compound and photosensitive resin composition

A photoactive compound is used in combination with a photosensitizer, represented by the following formula (1): A?[(J)m?(X-Pro)]n ??(1) wherein A represents a hydrophobic unit comprising at least one kind of hydrophobic groups selected from a hydrocarbon group and a heterocyclic group, J represents a connecting group, X-Pro represents a hydrophilic group protected by a protective group Pro which is removable by light exposure, m represents 0 or 1, and n represents an integer of not less than 1. The protective group Pro may be removable by light exposure in association with the photosensitizer (especially, a photo acid generator), or may be a hydrophobic protective group. The hydrophilic group may be a hydroxyl group or a carboxyl group. The photoactive compound has high sensitivity to a light source of short wavelength beams, for resist application, therefore, the photoactive compound is advantageously used for forming a pattern with high resolution.

Tolan derivatives, liquid crystal compositions including same, liquid crystal display devices including the compositions and method of preparation

A tolan derivative suitable for use in a liquid crystal composition represented by the general formula: STR1 wherein R is a straight chain alkyl group having from 1 to 10 carbon atoms, A is either STR2 or a single bond, and X is hydrogen or fluorine.

Synthesis and Physical Properties of Asymmetric Diphenyldiacetylenic Liquid Crystals

Fifty-six asymmetric diphenyl-diacetylene liquid crystal homologs including dialkyl, alkyl-alkoxy, cyano-alkyl, chloro-alkyl, fluoro-alkyl, difluoro-alkyl, lateral chloro-substituted fluoro-alkyl (or alkoxy), lateral fluoro-substituted asymmetric dialkyl, and vinyl-alkyl are synthesized and their physical properties evaluated.Among these asymmetric diphenyl-diacetylene liquid crystals, many dialkyl homologs exhibit low melting point, wide nematic range, and low heat of fusion.They are ideal host candidates for formulating eutectic mixtures.The polar groups make important contributions to the phase transition temperature, dielectric anisotropy, refractive indices and viscosity.Detailed effects depend on the position of the substitution.These new liquid-crystals compounds and mixtures are particularly useful for electro-optic modulation of infrared radiation. - Keywords: Diphenyl-diacetylenes, eutectic mixtures, electro-optic modulation, physical properties