(4-Methylphenyl)-1-(2H)-phthalazinone
(4-Methylphenyl)-1-(2H)-phthalazinone (CAS: 51334-85-1; Formula: C15H12N2O; MW: 236.27) is a heterocyclic organic compound. It serves as a valuable building block in chemical synthesis, particularly within the realm of heterocyclic chemistry. Supplied by Tech Serve Solutions, this compound is typically available at an assay of 95%, suitable for research and development purposes. Its structure lends itself to further chemical modification and incorporation into more complex molecular architectures.

Organic Synthesis Intermediate
(4-Methylphenyl)-1-(2H)-phthalazinone functions as a key intermediate in the synthesis of more complex organic molecules. Its phthalazinone core and pendant methylphenyl group offer specific reaction sites for further chemical transformations.
Heterocyclic Chemistry Research
This compound is employed in research focused on heterocyclic chemistry, exploring novel synthetic routes and the development of new heterocyclic systems. It is a useful reagent for introducing the phthalazinone moiety into target structures.
Building Block for Specialty Chemicals
As a heterocyclic building block, it can be utilised in the design and synthesis of specialty chemicals. Potential applications lie in areas requiring specific nitrogen-containing heterocyclic scaffolds.
| Molecular weight | 236.27 |
|---|---|
| Empirical formula | C15H12N2O |
| Assay | 95% |
| Melting point | 250-255 °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 (4-Methylphenyl)-1-(2H)-phthalazinone used for?
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This compound is primarily used as a building block in organic synthesis and for research in heterocyclic chemistry.
What is the CAS number and formula for (4-Methylphenyl)-1-(2H)-phthalazinone?
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The CAS number is 51334-85-1 and the empirical formula is C15H12N2O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (4-Methylphenyl)-1-(2H)-phthalazinone with an assay of 95%. This is a technical or research grade, and TSS does not represent it as USP, BP, EP, or any other pharmacopoeia grade.
How should (4-Methylphenyl)-1-(2H)-phthalazinone be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask (N95 recommended), eyeshields, and gloves. Avoid breathing dust. Use only in a well-ventilated area. Refer to the safety data sheet for comprehensive handling guidelines.
Is (4-Methylphenyl)-1-(2H)-phthalazinone a controlled substance?
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The provided data does not indicate that (4-Methylphenyl)-1-(2H)-phthalazinone is a controlled substance.
How is (4-Methylphenyl)-1-(2H)-phthalazinone packed and shipped?
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Tech Serve Solutions exports chemicals globally, adhering to all necessary regulations for safe packaging and transport of chemical reagents.
How can I request a quote or sample of (4-Methylphenyl)-1-(2H)-phthalazinone?
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Please contact Tech Serve Solutions directly via our website or sales team to request a quotation or a sample.
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