2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine
CAS434942-20-8
2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine (CAS 434942-20-8) is a tris(hydroxyphenyl)triazine built from cyanuric chloride and 2-methylresorcinol. Its free 4-hydroxy groups are selectively alkylated to give 2,4,6-tris(2-hydroxy-3-methyl-4-alkoxyphenyl)-1,3,5-triazine UV absorbers with strong long-wavelength UV absorption. KingPharm supplies this intermediate for R&D and production with a batch-specific certificate of analysis.
- CAS No.
- 434942-20-8
- Formula
- C24H21N3O6
- Mol. weight
- 447.44 g/mol
Product Description
2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine (C24H21N3O6, MW 447.4) carries three 2,4-dihydroxy-3-methylphenyl rings on a 1,3,5-triazine core. It is prepared by Friedel-Crafts type reaction of cyanuric chloride with 2-methylresorcinol in the presence of a Lewis acid such as aluminum chloride.
The 2-hydroxy group on each ring forms an intramolecular hydrogen bond with a triazine nitrogen, the structural feature that lets hydroxyphenyltriazines dissipate absorbed UV energy as heat. The 4-hydroxy groups remain available for alkylation, which converts the compound into lipophilic 4-alkoxy derivatives used as UV absorbers.
Because all three rings carry the 2-hydroxy-4-oxygen substitution, the tris(2-hydroxy-3-methyl-4-alkoxyphenyl) products made from this intermediate are reported to have excellent UV absorbing ability in the long-wavelength region, which suits optical films such as polarizer protective films.
For downstream alkylation, purchasers usually check HPLC purity and the level of incompletely substituted triazine by-products, residual aluminum and solvent, and moisture, since these affect selectivity and color of the final UV absorber.
Chemical Specifications
Identifiers
| CAS number | 434942-20-8 |
|---|---|
| Product name | 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine |
| Chinese name | 2,4,6-三（2,4-二羟基-3-甲基苯基）-1,3,5-三嗪 |
| IUPAC name | 4-[4,6-bis(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazin-2-yl]-2-methylbenzene-1,3-diol |
| Molecular formula | C24H21N3O6 |
| Molecular weight | 447.44 g/mol |
| PubChem CID | 136163146 |
| InChIKey | IAQKNZZLHOZCKN-UHFFFAOYSA-N |
| SMILES | CC1=C(C=CC(=C1O)C2=NC(=NC(=N2)C3=C(C(=C(C=C3)O)C)O)C4=C(C(=C(C=C4)O)C)O)O |
Applications
This intermediate is mainly used to make alkoxylated hydroxyphenyltriazine UV absorbers.
Triazine UV absorber synthesis
Selective alkylation of the 4-hydroxy groups gives 2,4,6-tris(2-hydroxy-3-methyl-4-alkoxyphenyl)-1,3,5-triazine UV absorbers.
Polarizer protective films
Derived UV absorbers are used in polarizer protective films that require absorption in the long-wavelength UV region.
Optical and coating materials
Serves as a building block for UV-protective additives in transparent films, coatings and engineering plastics.
Quality Documentation
The following documents can be provided for 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine to support technical evaluation and purchasing. Documents are issued for the specific grade and batch supplied.
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Certificate of Analysis (COA) Batch-specific test results against the specification.
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Product specification The release specification with test items, limits and methods.
Packaging, Storage & Transport
| Storage Temp | 室温, 干燥通风，密闭容器<br>Room Temp., Dry, Tighten Container ( ℃ ) |
|---|---|
| Available pack sizes | 25 kg, 10 kg, 1 kg, 500 g, 100 g, 25 g |
Read the current safety data sheet before handling. Packaging can be adapted to the order quantity and destination.
Frequently Asked Questions
Is this compound itself used as the UV absorber?
It is mainly an intermediate. Its free 4-hydroxy groups make it poorly compatible with most polymers, so it is normally alkylated to the 4-alkoxy derivative before use as a UV absorber.
What should be watched during alkylation?
Only the 4-hydroxy groups should react; the 2-hydroxy groups must stay free to keep UV absorption. Reaction conditions are controlled to avoid over-alkylation.
How should it be stored?
Keep in a tightly closed container in a cool, dry place, protected from light and moisture.
What is the CAS number of 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine?
The CAS Registry Number of 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine is 434942-20-8.
What is the molecular formula and molecular weight of 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine?
The molecular formula of 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine is C24H21N3O6, and its molecular weight is 447.44 g/mol.
What is 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine used for?
This intermediate is mainly used to make alkoxylated hydroxyphenyltriazine UV absorbers.
Which quality documents are available for 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine?
The following documents are available for 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine: Certificate of Analysis (COA); Product specification. Contact KingPharm to request the documents for a specific batch.
How can I request a quotation for 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine?
Send an inquiry for 2,4,6-Tris(2,4-dihydroxy-3-methylphenyl)-1,3,5-triazine (CAS 434942-20-8) with the required quantity, target specification, destination country and any documentation requirements. KingPharm will confirm availability, packaging, lead time and price.
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