2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole/UV-328 cas 21615-49-6 UV-328

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2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole/UV-328 cas 21615-49-6 UV-328

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The ultraviolet absorber UV-328 is an efficient ultraviolet absorber that can effectively absorb ultraviolet light ranging from 270 to 340 nanometers. Its light stability performance is similar to that of UV-326 and UV-327, but this product has good compatibility with resins, low thermal volatility, and high wash resistance. This product is suitable for polymers such as polyolefins (especially polyethylene), polyesters, styrene-based polymers, polyamides, polymethyl methacrylate, polycarbonates, and elastomers.
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Model:
21615-49-6
Brand:
bosschem
Code:
21615-49-6

Product Description

2-(2'-Hydroxy-3',5'-dipentylphenyl)benzotriazole Basic information
Product Name:	2-(2'-Hydroxy-3',5'-dipentylphenyl)benzotriazole
CAS:	21615-49-6
MF:	C22H29N3O
MW:	351.49
EINECS:	247-384-8
Mol File:	21615-49-6.mol
2-(2'-Hydroxy-3',5'-dipentylphenyl)benzotriazole Chemical Properties
Melting point	80-83°C
Boiling point	515.1±60.0 °C(Predicted)
density	1.10±0.1 g/cm3(Predicted)
pka	8.59±0.50(Predicted)
CAS DataBase Reference	21615-49-6(CAS DataBase Reference)

2-(2'-Hydroxy-3' 5'-di-tert-pentylphenyl)-benzotriazole/UV-328 cas 21615-49-6 C22H29N3O Anti-aging agent Weathering modifier for agricultural plastic film Food packaging additive Light stabilizer for coatings and inks systems Adhesive UV-328

Our Advantages

Specifications & technical advantages:
Higher main content and lower impurity levels; batch-to-batch stability; better solubility, particle size, and flowability, facilitating downstream processes.
Quality system advantages:
Certification list - ISO 9001, REACH registration number, FDA, Kosher, Halal; each batch comes with a COA, supporting third-party testing (SGS, etc.); full traceability.
Supply chain advantages:
Own factory/integrated production; annual production capacity is at full capacity, with plans to expand production; some stock is available for immediate delivery; delivery time is clear.

Transportation

Packaging & Loading

25 kg bags with inner PE liner, 40 bags per pallet (1 MT), shrink-wrapped and fumigation-free; 20 MT per 20' FCL, 28 MT per 40' HQ.

Shipping

Sea freight is recommended for bulk orders (30–40 days to Europe/US); samples ship via DHL/FedEx within 3–7 days. Available terms: FOB Qingdao / CIF / DDP.

Dangerous goods

Classified as UN, Class, Packing Group; we provide full DG documentation and comply with IMDG for all ocean shipments.

Documents

Commercial invoice, packing list, bill of lading, COA, SDS, and certificate of origin are included with every shipment.

2-(2'-Hydroxy-3',5'-di-tert-pentylphenyl)-benzotriazole/UV-328 cas 21615-49-6 UV-328

Our Advantages

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