30757-50-7

Basic information

• Product Name: 4-Hydroxyphthalonitrile
• Synonyms: 3,4-DICYANOPHENOL;4-HYDROXYPHTHALONITRILE;4-HYDROXYBENZENE-1,2-DICARBONITRILE;4-Hydroxyphehalonitrile;4-HYDROXYPHTHALONITRILE 97+%;1,2-Benzenedicarbonitrile,4-hydroxy-;4-Hydroxyphthalonitrile SynonyMs 3,4-Dicyanophenol;3,4-Dicyano Penol
• CAS NO: 30757-50-7
• Molecular Formula: C₈H₄N₂O
• Molecular Weight: 144.13
• Product Categories: Functional Materials;Phthalonitriles & Naphthalonitriles;Phthalonitriles (Building Blocks for Phthalocyanines)
• Mol File: 30757-50-7.mol
• Article Data: 11

Chemical Properties

• Melting Point: ~218 °C
• Boiling Point: 394.6 °C at 760 mmHg
• Flash Point: 192.4 °C
• Appearance: /
• Density: 1.34 g/cm³
• Vapor Pressure: 8.61E-07mmHg at 25°C
• Refractive Index: 1.614
• Storage Temp.: Inert atmosphere,Room Temperature
• Solubility: soluble in Methanol
• PKA: 6.45±0.18(Predicted)
• BRN: 2718847
• CAS DataBase Reference: 4-Hydroxyphthalonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: 4-Hydroxyphthalonitrile(30757-50-7)
• EPA Substance Registry System: 4-Hydroxyphthalonitrile(30757-50-7)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• Hazardous Substances Data: 30757-50-7(Hazardous Substances Data)

Usage

Chemical Properties

Colorless transparent liquid

Synthesis Reference(s)

Synthetic Communications, 19, p. 3231, 1989 DOI: 10.1080/00397918908052723

InChI:InChI=1/C8H4N2O/c9-4-6-1-2-8(11)3-7(6)5-10/h1-3,11H

Upstream product

• 78-83-1 2-methyl-propan-1-ol 
• 31643-49-9 4-Nitrophthalonitrile 
• 77-84-9 2-ethyl-2-methyl-1,3-propanediol 
• 615-56-5 3,4-dibromophenol 
• 544-92-3 copper(I) cyanide 
• 557-21-1 zinc(II) cyanide 
• 1086964-79-5 tert-butyl(3,4-dibromophenoxy)dimethylsilane 
• 13138-53-9 4-nitrophthalic amide 
• 86312-75-6 4-(benzyloxy)phthalonitrile 

Downstream Products

• 769970-46-9 copper tetra-4-(4-undecyloxybenzoyloxy)phthalocyanine 
• 1209494-17-6 4-[12-(hydroxy)dodecyloxy]phthalonitrile 
• 876317-60-1 4-[2-(tetrahydro-2H-pyran-2-yloxy)ethoxy]phthalonitrile 

Relevant articles and documents

NEMATOGENS FOR MATRIX-ADDRESSED TWISTED NEMATIC DISPLAYS - 1.

Nematogens with small DELTA epsilon / epsilon // PERPEND for matrix-addressed TN-displays were synthesized. The effect of introducing lateral cyano groups on the dielectric constants and the thermodynamic stability of the mesophase of 4-cyanophenyl esters is described. Fluoro-PCH's suitable for matrix addressing were prepared and the effect of the fluoro substituent on the clearing point was studied.

The examination of molecular structure properties of 4,4′-oxydiphthalonitrile compound: combined spectral and computational analysis approaches

The synthesis process, X-ray diffraction analysis of its single crystal form and the structural properties of the 4,4′-oxydiphthalonitrile compound by Fourier transform infrared, nuclear magnetic resonance and ultraviolet-visible spectral methods were rep

Synthesis and characterization of transparent polyimides derived from ester-containing dianhydrides with different electron affinities

Two series of poly(ester imide)s derived from bis(trimellitic acid anhydride) phenyl ester (TAHQ) and bis[(3,4-dicarboxylic anhydride) phenyl] terephthalate (PAHP), as well as poly(ether imide)s based on hydroquinone diphthalic anhydride (HQDPA), were synthesized with aromatic diamines via solution polycondensation. These polyimide films were transparent with an ultraviolet-visible absorption cut-off wavelength below 375 nm, and with tensile strengths of 42.0-83.8 MPa, tensile moduli of 2.5-4.7 GPa and elongations at break of 2.1-5.4%. Compared with the poly(ether imide)s, the poly(ester imide)s showed higher glass transition temperatures (Tg), lower water absorption (WA) and lower temperature of 5% weight loss (Td5%). Moreover, the poly(ester imide)s derived from PAHP with a low electron affinity of 2.04 eV by theoretical calculation achieved better transparency, lower WA and slightly lower Tg than the corresponding TAHQ-based poly(ester imide)s.