UV Absorber 329 CAS 3147-75-9

UV Absorber 329 is a benzotriazole-based ultraviolet light stabilizer, chemically known as 2-(2H-benzotriazol-2-yl)-4-(1,1,3,3-tetramethylbutyl)phenol. It appears as a white to pale yellow crystalline powder, with a faint characteristic odor. Practically insoluble in water, but soluble in organic solvents such as acetone, chloroform, ethyl acetate, toluene, and methylene chloride. Commonly used as a light stabilizer in plastic and polymer industries to protect materials such as polyvinyl chloride, polyolefins, polystyrenics, polycarbonate, polyesters, acrylic resins, and engineering plastics from UV-induced degradation, yellowing, and surface cracking. Also functions as a UV absorber in coatings, paints, adhesives, sealants, and packaging films to improve outdoor weatherability and extend service life. Exhibits good thermal stability and low volatility. Stable under normal storage conditions and should be kept in tightly sealed containers away from light, moisture, and strong oxidizing agents.

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Model:
3147-75-9
Brand:
Boss Chemical
Code:
3147-75-9

Product Description

UV-329 Basic information
Product Name:	UV-329
CAS:	3147-75-9
MF:	C20H25N3O
MW:	323.43
EINECS:	221-573-5
Mol File:	3147-75-9.mol
UV-329 Chemical Properties
Melting point	106-108 °C(lit.)
Boiling point	471.8±55.0 °C(Predicted)
density	1.10±0.1 g/cm3(Predicted)
vapor pressure	0Pa at 20℃
storage temp.	2-8°C
solubility	Chloroform (Slightly), Methanol (Slightly)
pka	8.07±0.45(Predicted)
form	Solid
color	White to Off-White
Water Solubility	2μg/L at 20℃
Cosmetics Ingredients Functions	LIGHT STABILIZER
InChI	InChI=1S/C20H25N3O/c1-19(2,3)13-20(4,5)14-10-11-18(24)17(12-14)23-21-15-8-6-7-9-16(15)22-23/h6-12,24H,13H2,1-5H3
InChIKey	IYAZLDLPUNDVAG-UHFFFAOYSA-N
SMILES	C1(O)=CC=C(C(C)(C)CC(C)(C)C)C=C1N1N=C2C=CC=CC2=N1
LogP	7.290 (est)
CAS DataBase Reference	3147-75-9(CAS DataBase Reference)
EPA Substance Registry System	Octrizole (3147-75-9)

UV Absorber 329 CAS 3147-75-9 Ultraviolet absorber Light stabilizer Anti-ultraviolet aging agent Anti-light-yellowing additive for ABS resin

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Chemical detection methods

Spectroscopic Analysis Methods

Ultraviolet-Vis Spectrophotometry (UV-Vis)
Infrared Spectroscopy (IR/FTIR)
Atomic Absorption Spectroscopy (AAS)
X-ray Fluorescence Spectroscopy (XRF)
Nuclear Magnetic Resonance Spectroscopy (NMR)

Chromatographic Analysis

Gas Chromatography (GC)
High Performance Liquid Chromatography (HPLC)
Ion Chromatography (IC)
Thin Layer Chromatography (TLC)

Mass Spectrometry Analysis

GC-MS / LC-MS/MS: Qualitative and Quantitative Analysis
ICP-MS: Trace Metal Elements (ppb Level)
TOF-MS: Precise Molecular Weight Determination

Electrochemical analysis methods

Polypotentiometric methods
Conductivity methods
Polarographic methods / Voltammetric methods
Coulometric analysis

Thermal Analysis Methods

Thermogravimetric Analysis (TGA)
Differential Scanning Calorimetry (DSC)
Differential Thermal Analysis (DTA)

Classical wet chemical analysis

Titration analysis
Gravity analysis