

share
1,2,5-Trimethylnaphthalene CAS NO 641-91-8
Unit Price:
CAS No.:641-91-8
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
1,2,5-Trimethylnaphthalene is a polycyclic aromatic hydrocarbon (PAH) derivative characterized by its three methyl substituents on the naphthalene ring system. This specific isomer is a valuable high-purity chemical intermediate and a key building block in advanced organic synthesis. It is primarily sought after by industries involved in the research and production of specialty chemicals, advanced materials, and pharmaceutical precursors.
Application
- Organic Synthesis Intermediate: Serves as a crucial precursor for synthesizing more complex polycyclic aromatic compounds and functionalized naphthalenes.
- Pharmaceutical Research: Used in the development and synthesis of active pharmaceutical ingredients (APIs) and other bioactive molecules.
- Material Science: Acts as a monomer or starting material in the production of advanced polymers, liquid crystals, and organic electronic materials.
- Dye & Pigment Manufacturing: Employed as a key intermediate in the synthesis of specific high-performance dyes and organic pigments.
- Analytical Reference Standard: Supplied as a high-purity standard for chromatography (GC, HPLC) and spectroscopic analysis in quality control and research laboratories.
- Fuel & Lubricant Additives: Investigated for use in the formulation of specialty fuel components and high-performance lubricant additives.
Basic Information
| Product Name | 1,2,5-Trimethylnaphthalene |
| CAS No. | 641-91-8 |
| Molecular Formula | C₁₃H₁₄ |
| Molecular Weight | 170.25 g/mol |
| Synonyms | 1,2,5-Trimethylnaphthalene; NSC 404087; 1,2,5-TMN; Trimethylnaphthalene (mixed isomers may be specified); beta,alpha,α-Trimethylnaphthalene |
| EINECS | 211-386-6 |
Quality Control
Our 1,2,5-Trimethylnaphthalene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We can support requirements for research, technical, and custom grades.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flame.
Specification
| Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Identification (IR) | Conforms to structure |
| Assay (HPLC) | ≥ 98.0% |
| Melting Point | Contact for details |
| Related Substances (HPLC) | Contact for details |
| Residue on Ignition | ≤ 0.1% |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
Hot Related Products


4-Chlorotolueneforsynthesis CAS NO 106-43-3


Toluene (Methyl-D3) CAS NO 1124-18-1


2-Methoxy-7-Methylnaphthalene CAS NO 1131-53-9


1,2-Bis(2-Pyridyl)Ethylene CAS NO 1437-15-6


2-Chloroethynylbenzene CAS NO 1483-82-5


4-Bromo-p-Terphenyl CAS NO 1762-84-1


4-(Chloromethyl)Quinoline Hydrochloride CAS NO 1822-57-7


4-Chloro-1-Methoxynaphthalene CAS NO 10443-43-3


1,3,5-Tribromo-2,4,6-Trichlorobenzene CAS NO 13075-02-0


2-Phenyl-1,4-Cyclohexadiene CAS NO 13703-52-1


4-Methoxytriphenylmethyl Chloride CAS NO 14470-28-1


1-Bromo-3-Methylbenzene-D3 CAS NO 15169-02-5


N,N'-Trimethylene-1,10-*Phenanthrolinium Dibromide CAS NO 15302-99-5


1-Benzylindene CAS NO 16275-01-7


Ethyl, 2-Phenyl- CAS NO 17203-53-1


(3R)-1,3-Diphenylbutane CAS NO 17293-55-9


1-Chloro-2,4-Bis-Methanesulfonyl-Benzene CAS NO 17481-98-0


n-(Ethoxycarbonylmethyl)-6-Methoxyquinolinium CAS NO 18010-05-4


Benzene, 1-Ethyl-3-Iodo- CAS NO 19164-77-3


2,6-Dichloroiodobenzene CAS NO 19230-28-5
Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.






