UV Absorber 326 UV-326 3896-11-5

UV absorber refers to a preparation that can prevent a large amount of ultraviolet rays from passing through. UV absorbers should have the following conditions: good thermal stability, no change due to heat even during processing, and low thermal volatility; It can strongly absorb ultraviolet radiation (especially at wavelengths of 290-400nm) and has good chemical stability, without adverse reactions with the material components in the product; Good miscibility, can be evenly dispersed in the material, does not spray frost, and does not leak out; The absorbent itself has good photochemical stability, does not decompose, and does not change color; Colorless, non-toxic, and odorless; Resistant to immersion and washing; Affordable and easy to obtain. UV absorbers can be classified into the following categories based on their chemical structure: salicylates, benzophenones, benzotriazoles, substituted acrylonitrile, triazines, and others. Fabrics with added UV absorbers can achieve excellent UV blocking effects. Can reduce fading and enhance the sunlight fastness of polyester dispersed dyes. UV absorber UV-326 is one of them.

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Model:
3896-11-5
Brand:
futurechemical
Code:
3896-11-5

Product Description

UV Absorber 326 Basic information
Characterization Physical Properties Features/Benefits Applications Guidelines for use Handling & Safety
Product Name:	UV Absorber 326
CAS:	729335
MF:	C17H18ClN3O
MW:	315.8
EINECS:	223-445-4
Mol File:	3896-11-5.mol
UV Absorber 326 Chemical Properties
Melting point	144-147 °C(lit.)
Boiling point	460.4±55.0 °C(Predicted)
density	1.26±0.1 g/cm3(Predicted)
vapor pressure	0Pa at 20℃
storage temp.	Sealed in dry,Room Temperature
solubility	Chloroform (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly)
pka	9.31±0.48(Predicted)
form	Solid
color	Pale Yellow to Light Yellow
Water Solubility	4μg/L at 20℃
InChI	InChI=1S/C17H18ClN3O/c1-10-7-12(17(2,3)4)16(22)15(8-10)21-19-13-6-5-11(18)9-14(13)20-21/h5-9,22H,1-4H3
InChIKey	OCWYEMOEOGEQAN-UHFFFAOYSA-N
SMILES	C1(O)=C(C(C)(C)C)C=C(C)C=C1N1N=C2C=C(Cl)C=CC2=N1
LogP	6.580 (est)
CAS DataBase Reference	3896-11-5(CAS DataBase Reference)
EPA Substance Registry System	2-tert-Butyl-6-(5-chloro-2H-benzotriazol-2-yl)-p-cresol (3896-11-5)

UV Absorber 326 C17H18ClN3O UV-326 3896-11-5 Plastic product anti-aging Automotive and industrial coatings Printing ink Rubber products

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
Pre-Shipment Inspection: Every order passes a final pre-shipment inspection, with inspection photos and reports shared before dispatch.

FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.