2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one

Modify Date: 2026-07-29 16:35:14

2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one Structure
2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one structure
Common Name 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one
CAS Number 944-91-2 Molecular Weight 189.21400
Density 1.19g/cm3 Boiling Point 263.7ºC at 760 mmHg
Molecular Formula C10H11N3O Melting Point N/A
MSDS N/A Flash Point 113.3ºC

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.19g/cm3
Boiling Point 263.7ºC at 760 mmHg
Molecular Formula C10H11N3O
Molecular Weight 189.21400
Flash Point 113.3ºC
Exact Mass 189.09000
PSA 39.82000
LogP 0.78580
Index of Refraction 1.61
InChIKey XNHJDSQIZMQBFF-UHFFFAOYSA-N
SMILES Cn1nc(-c2ccccc2)n(C)c1=O

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~65%

2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one Structure

2,4-dimethyl-5-...

CAS#:944-91-2

Learn More
Literature: Kane, John M. Synthesis, 1987 , # 10 p. 912 - 914

 Bioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Tested for inhibition of pentylenetetrazole induced seizures in mice; Value is 1/8 of...
Source: ChEMBL
Target: Mus musculus
External Id: CHEMBL731212
Name: Acute cytotoxicity was evaluated as LD50 in mice (ip)
Source: ChEMBL
Target: Mus musculus
External Id: CHEMBL726026
Name: Antidepressant activity was evaluated by measuring its ability to antagonize reserpin...
Source: ChEMBL
Target: Mus musculus
External Id: CHEMBL723988
Name: Antidepressant activity was evaluated by measuring its ability to antagonize RO 4-128...
Source: ChEMBL
Target: Mus musculus
External Id: CHEMBL719688
Name: Tested for acute toxicity in mice after intraperitoneal administration; Value ranges ...
Source: ChEMBL
Target: Mus musculus
External Id: CHEMBL738597
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

2,4-Dihydro-2,4-dimethyl-5-phenyl-3H-1,2,4-triazol-3-one
1,4-Dimethyl-3-phenyl-1,2,4-triazol-5-on
1,4-Dimethyl-3-phenyl-1,2,4-triazolin-5-on
3H-1,2,4-Triazol-3-one,2,4-dihydro-2,4-dimethyl-5-phenyl
2,4-dimethyl-5-phenyl-2,4-dihydro-[1,2,4]triazol-3-one

  | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the SMILES notation of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: SMILES notation of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is Cn1nc(-c2ccccc2)n(C)c1=O.
Q: What English synonyms does 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one have?
A: English synonyms of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one: 2,4-Dihydro-2,4-dimethyl-5-phenyl-3H-1,2,4-triazol-3-one, 1,4-Dimethyl-3-phenyl-1,2,4-triazol-5-on, 1,4-Dimethyl-3-phenyl-1,2,4-triazolin-5-on, 3H-1,2,4-Triazol-3-one,2,4-dihydro-2,4-dimethyl-5-phenyl, 2,4-dimethyl-5-phenyl-2,4-dihydro-[1,2,4]triazol-3-one.
Q: What is the CAS number of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: CAS number of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is 944-91-2.
Q: What is the molecular formula of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: Molecular formula of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is C10H11N3O.
Q: What is the polar surface area (PSA) of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: Polar surface area (PSA) of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is 39.82000.
Q: What is the English name of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: The English name of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one.
Q: What is the boiling point of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: Boiling point of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is 263.7ºC at 760 mmHg.
Q: What is the molecular weight of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: Molecular weight of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is 189.21400.
Q: What is the InChIKey of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one?
A: InChIKey of 2,4-dimethyl-5-phenyl-1,2,4-triazol-3-one is XNHJDSQIZMQBFF-UHFFFAOYSA-N.
Q: What is the Chinese name of 944-91-2?
A: Chinese name of 944-91-2 is 944-91-2.
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