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Hydroxyphenyl-Triazine UV Absorber (CAS 147315-50-2)

CAS 147315-50-2 · Formula C27H27N3O2 · MW 425.5 g/mol

A hydroxyphenyl-triazine UV absorber that protects polycarbonate, PET, and engineering plastics from ultraviolet degradation at high processing temperatures.

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CAS Number
147315-50-2
Formula
C27H27N3O2
Molecular Weight
425.5 g/mol
Material Family
Specialty Additives

What is 2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol and what is it used for?

2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol (CAS 147315-50-2, formula C27H27N3O2) is a hydroxyphenyl-triazine (HPT) UV absorber for polycarbonate, PET, and high-heat engineering plastics. The triazine chromophore absorbs ultraviolet light strongly and withstands high processing temperatures, so it protects clarity and color where older absorbers would break down. RawSource supplies this HPT absorber in bulk against your grade and volume.

At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
UV Protection
Solubility
Practically insoluble in water; soluble in common organic solvents and compatible with the polymer matrix
Functional Roles
Applications & Use Cases
  • ▸ High-temperature UV protection (Polycarbonate, engineering plastics)
  • ▸ Clarity and color retention outdoors (PET, polyester)
  • ▸ Strong, durable UV screening (High-solids and durable coatings)
Physical Properties
Form
Off-white to pale yellow powder or granules
Solubility
Practically insoluble in water; soluble in common organic solvents and compatible with the polymer matrix
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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Chemical Identity
CAS Number
147315-50-2
Molecular Formula
C27H27N3O2
Molecular Weight
425.5 g/mol
IUPAC Name
2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-hexoxyphenol
PubChem CID
InChI Key
LEVFXWNQQSSNAC-UHFFFAOYSA-N
Synonyms
2-(4,6-Diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol Hydroxyphenyltriazine HPT
Full Description

2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol (CAS 147315-50-2, formula C27H27N3O2) is a hydroxyphenyl-triazine (HPT) UV absorber for polycarbonate, PET, and high-heat engineering plastics. The triazine chromophore absorbs ultraviolet light strongly and withstands high processing temperatures, so it protects clarity and color where older absorbers would break down. RawSource supplies this HPT absorber in bulk against your grade and volume.

Hydroxyphenyl-triazine absorbers give higher ultraviolet absorption and better thermal stability than benzophenone and first-generation benzotriazole grades, which is why they are used in demanding engineering plastics and high-solids coatings. This HPT absorber is a solid grade suited to polycarbonate and polyester at high melt temperature.

Applications

Polycarbonate and engineering plastics

In polycarbonate and other high-heat engineering resins, this HPT absorber provides strong ultraviolet protection with the thermal stability the melt demands, holding clarity and color in glazing, sheet, and molded parts.

PET and polyester

In PET and polyester, the absorber screens ultraviolet light through hot processing without breaking down, protecting film and molded parts that see the sun.

High-solids and durable coatings

In high-solids and high-durability coatings, the triazine chromophore delivers strong, long-lasting ultraviolet absorption in the film.

Host polymers and typical use

The absorber is dispersed into the polymer or coating during compounding or formulation, where it absorbs ultraviolet light before it can break polymer chains, fade pigments, or dull the surface. The systems below are where it is most often specified.

Host systemTypical roleForm supplied
Polycarbonate, engineering plasticsHigh-temperature UV protectionPowder
PET, polyesterClarity and color retention outdoorsPowder
High-solids and durable coatingsStrong, durable UV screeningPowder

Typical use levels for polymer UV absorbers fall in the 0.1 to 1.0 percent range, set by part thickness, expected outdoor exposure, and the co-stabilizer package (commonly a hindered-amine light stabilizer). Confirm loading on the bench and the exact specification on the Certificate of Analysis for each lot.

Handling and regulatory status

2-(4,6-diphenyl-1,3,5-triazin-2-yl)-5-(hexyloxy)phenol is an industrial UV absorber for engineering plastics and coatings. It is a hydroxyphenyl-triazine with low aquatic toxicity and is not on the EU REACH Candidate List; follow the Safety Data Sheet for the exact classification and handling.

Bulk Hydroxyphenyl-Triazine UV Absorber Supply from RawSource

RawSource supplies this hydroxyphenyl-triazine UV absorber in bulk to coatings, plastics, and polymer compounding buyers and their purchasing teams. We source to your target grade, purity, and physical form across domestic and import channels, so we match specification, lead time, and landed cost to your program. Multiple qualified producers make this absorber to a common identity, which keeps supply competitive and available on demand.

Every lot ships with a Certificate of Analysis (CoA) and the current Safety Data Sheet (SDS). We source to order rather than carry fixed stock, so pricing and availability are confirmed by quote. Send your grade, annual volume, and any specification limits for a current bulk price.

Request a bulk hydroxyphenyl-triazine UV absorber quote

To buy this UV absorber in bulk from RawSource, send your target grade, physical form, packaging, destination, and any specification requirement, and we return a current bulk quote. A CoA and SDS accompany every shipment. Request a quote to get started.

Frequently Asked Questions

What is a hydroxyphenyl-triazine UV absorber?

A hydroxyphenyl-triazine, or HPT, absorber uses a triazine chromophore to absorb ultraviolet light. Compared with benzophenone and older benzotriazole grades, HPT absorbers give higher absorption and better thermal stability, which suits them to high-heat engineering plastics and high-solids coatings.

What polymers is this HPT absorber used in?

This HPT absorber is used in polycarbonate, PET and other polyester, high-heat engineering plastics, and durable coatings. It is chosen where a UV absorber must survive high processing temperatures and deliver strong ultraviolet screening, and it is commonly combined with a hindered-amine light stabilizer.

Where can I buy bulk hydroxyphenyl-triazine UV absorber?

RawSource supplies this HPT absorber in bulk to coatings, plastics, and polymer-compounding buyers in bag, drum, and larger quantities sized to your run. Because several qualified producers make it to a common identity, supply is competitive and available on demand. Send your grade, volume, and destination for a current bulk quote; a CoA and SDS ship with every lot.

Is this UV absorber a restricted substance?

No. This grade is not the benzotriazole 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol (CAS 25973-55-1), which was listed under the Stockholm Convention on Persistent Organic Pollutants in 2023, and it is not one of the benzotriazoles on the EU REACH Candidate List of Substances of Very High Concern. It is an industrial additive for polymers and coatings and is not sold for food, drug, or cosmetic use unless a grade is specified for it. Always follow the Safety Data Sheet for handling and disposal.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.