3,4-Dihydro-3-methyl-2(1H)-quinazolinone
3,4-Dihydro-3-methyl-2(1H)-quinazolinone (CAS 24365-65-9) is a heterocyclic organic compound with the molecular formula C9H10N2O and a molecular weight of 162.19 g/mol. It serves as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. This compound is primarily utilised in research and development settings for the creation of novel molecules and the exploration of synthetic pathways.
- Synonyms
- C9H10N2O3-Methyl-3,4-dihydro-2(1H)-quinazolinone

Organic Synthesis Intermediate
Utilised as a key intermediate in multi-step organic synthesis, enabling the construction of complex molecular architectures.
Heterocyclic Chemistry Research
Employed in academic and industrial research for the development and study of quinazoline derivatives and other heterocyclic systems.
Pharmaceutical Intermediate Exploration
Serves as a foundational component in the exploratory synthesis of potential pharmaceutical agents, leveraging its quinazolinone core structure.
| Molecular weight | 162.19 |
|---|---|
| Empirical formula | C9H10N2O |
| Assay | 99% |
| Melting point | 200-203 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 3,4-Dihydro-3-methyl-2(1H)-quinazolinone used for?
+
3,4-Dihydro-3-methyl-2(1H)-quinazolinone is used as a building block and intermediate in organic synthesis, particularly in heterocyclic chemistry research and the exploration of potential pharmaceutical agents.
What is the CAS number and molecular formula for 3,4-Dihydro-3-methyl-2(1H)-quinazolinone?
+
The CAS number is 24365-65-9, and the molecular formula is C9H10N2O.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies 3,4-Dihydro-3-methyl-2(1H)-quinazolinone with an assay of 99%. We do not represent this product as USP, BP, EP, or any pharmacopoeia grade.
How should 3,4-Dihydro-3-methyl-2(1H)-quinazolinone be handled safely?
+
Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust. In case of contact with eyes, rinse cautiously with water for several minutes and seek medical advice. Ensure adequate ventilation and avoid dust formation.
Is 3,4-Dihydro-3-methyl-2(1H)-quinazolinone a controlled substance?
+
The provided data does not indicate that 3,4-Dihydro-3-methyl-2(1H)-quinazolinone is a controlled substance.
How is this chemical shipped and exported?
+
As a global supplier and exporter since 1998, Tech Serve Solutions adheres to all relevant international shipping and export regulations for fine chemicals.
How can I request a sample or quote for 3,4-Dihydro-3-methyl-2(1H)-quinazolinone?
+
Please contact our sales department via the website or direct email to request a sample or a formal quotation for 3,4-Dihydro-3-methyl-2(1H)-quinazolinone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis