What Is 1-Phenyl-3-Hydroxy-1,2,4-Triazole and Why Is It Important in Industrial Chemistry?

2025-08-12 09:06

Technical Introduction

1-Phenyl-3-Hydroxy-1,2,4-Triazole is a heterocyclic organic compound belonging to the 1,2,4-triazole family.
Its structure features a five-membered triazole ring with nitrogen atoms at the 1, 2, and 4 positions, a hydroxyl group at position 3, and a phenyl group at position 1.
The presence of both aromatic and heteroaromatic moieties gives the molecule unique reactivity, enabling it to act as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty materials.
It typically appears as a white to off-white crystalline powder with good stability under standard storage conditions.


Applications

1. Pharmaceutical Intermediate

  • Serves as a building block for antifungal, antibacterial, and antiviral drugs.

  • Used in the development of CNS-active agents and anti-inflammatory compounds.

2. Agrochemical Industry

  • Intermediate in the synthesis of fungicides and herbicides.

  • Offers potential for broad-spectrum pest control formulations.

3. Polymer and Material Science

  • Utilized in the modification of specialty resins and UV-absorbing materials.

  • May serve as a cross-linking or stabilizing component in high-performance polymers.

4. Laboratory Research

  • Applied in medicinal chemistry studies for structure-activity relationship (SAR) exploration.


Advantages

  • Versatile Synthetic Utility: Functional groups allow for selective chemical modification.

  • Stable Under Storage: Low degradation rate when kept under recommended conditions.

  • Wide Application Scope: Useful in multiple high-value industries.

  • High Purity Grades Available: Suitable for pharmaceutical-grade synthesis.


Typical Parameters

PropertyValue
Chemical FormulaC₈H₇N₃O
Molecular Weight161.16 g/mol
CAS Number[varies depending on form]
AppearanceWhite to off-white crystalline powder
Purity (%)≥98.0
Melting Point (°C)170–180
SolubilitySoluble in ethanol, methanol; low in water
StorageStore in cool, dry place; tightly sealed
Shelf Life24 months (sealed)

FAQs

Q1: Is 1-Phenyl-3-Hydroxy-1,2,4-Triazole toxic?
A1: It can be harmful if ingested or inhaled; industrial handling requires PPE.

Q2: Can it be used directly in drug formulations?
A2: No, it is an intermediate and requires further chemical modification.

Q3: What industries use this compound most?
A3: Pharmaceutical, agrochemical, and specialty materials manufacturing.

Q4: Does it have any stability issues?
A4: It is stable under normal conditions but should be kept away from strong oxidizing agents.

Q5: Are there related compounds with similar properties?
A5: Yes, other phenyl-substituted triazoles offer comparable reactivity with slightly different biological profiles.

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