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Description Characterization Applications Physical properties Uses Features/benefits Analytic Laboratory Methods Guidelines for use Handling & Safety References
Octabenzone structure
Chemical Name:
531;uf4;uv1;UV 1;uva1;UF 4;BP-12;UV-531;anti-uvp;benzonoo
Molecular Formula:
Formula Weight:
MOL File:

Octabenzone Properties

Melting point:
47-49 °C(lit.)
Boiling point:
424.46°C (rough estimate)
refractive index 
1.6000 (estimate)
Flash point:
Specific Gravity
CAS DataBase Reference
1843-05-6(CAS DataBase Reference)
NIST Chemistry Reference
EPA Substance Registry System
Methanone, [2-hydroxy-4-(octyloxy)phenyl] phenyl-(1843-05-6)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi,N
Risk Statements  36/37/38-50/53-43
Safety Statements  26-36-61-60-36/37
RIDADR  UN 3077 9/PG 3
WGK Germany  1
RTECS  DJ1595000
HS Code  29145090
Hazardous Substances Data 1843-05-6(Hazardous Substances Data)
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
Precautionary statements:
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.

Octabenzone price More Price(5)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 413151 2-Hydroxy-4-(octyloxy)benzophenone 98% 1843-05-6 100g $54.5 2018-11-13 Buy
TCI Chemical H0288 2-Hydroxy-4-n-octyloxybenzophenone >98.0%(GC) 1843-05-6 25g $18 2018-11-22 Buy
TCI Chemical H0288 2-Hydroxy-4-n-octyloxybenzophenone >98.0%(GC) 1843-05-6 500g $121 2018-11-22 Buy
Alfa Aesar L11750 2-Hydroxy-4-n-octyloxybenzophenone, 99% 1843-05-6 25g $18.1 2018-11-13 Buy
Alfa Aesar L11750 2-Hydroxy-4-n-octyloxybenzophenone, 99% 1843-05-6 100g $35.7 2018-11-13 Buy

Octabenzone Chemical Properties,Uses,Production


Octabenzone is a UV absorber/screener. It is used to protect polymers (e.g., polyethylene, polypropylene, polyvinylchloride) against damage by UV light. Colorless crystals; Light yellow powder.
Stable under recommended storage conditions.


UV Absorber 531 is an ultraviolet light absorber (UVA) of the benzophenone class, imparting good light stability when used in combination with a hindered amine light stabilizer (HALS) of the Chimassorb, Tinuvin® or Uvinul® range. It shows good compatibility with polyolefins and plasticized PVC.


The main application of UV Absorber 531 is in combination with a HALS the
light stabilization of low density and linear low density polyethylene as well
as ethylene-vinyl acetate copolymers for agricultural films. It can be used as
well as a UV barrier to protect the contents of packages for both industrial
and consumer applications. Also, in combination with HALS, UV Absorber 531
can be used in high density polyethylene molded articles, e. g. in crates.
UV Absorber 531 also protects a number of other polymers against degradation
caused by light exposure such as plasticized PVC and rubbers.
UV Absorber 531 can be used in combination with antioxidants, phosphites
and other light stabilizers.

Physical properties


Adsorbents and absorbents;
Paint additives and coating additives not described by other categories
Processing aids, not otherwise listed
Air Care Products
Building/Construction Materials not covered elsewhere
Fabric, Textile, and Leather Products not covered elsewhere
Furniture and Furnishings not covered elsewhere
Paints and Coatings
Plastic and Rubber Products not covered elsewhere


UV Absorber 531 is particularly suitable for thick films, typically > 100 μm and thick sections. The low vapor pressure of UV Absorber 531 prevents losses during processing. Low migration rates reduce the risk of blooming.

Analytic Laboratory Methods

Migration of photo stabilizers from plastics was studied in model elution expt where the plastics were placed at different temp 20 and 45 degree in different solvents, e.g. H2O, acetic acid,  sunflower oil, heptane, and the amt of photostabilizer eluted was determined by spectrophotometry and by gas chromatography. The elution of 2-hydroxy-4-n-octyloxybenzophenone depended on the type of plastic. Elution was low in polystyrene and high in polyolefins, polyethylene. Food contamination from these plastic additives is discussed.

Guidelines for use

Handling & Safety

In accordance with good industrial practice, handle with care and avoid
unnecessary personal contact. Avoid continuous or repetitive breathing of
dust. Use only with adequate ventilation. Protect skin. Avoid dust formation
and ignition sources.
For more detailed information please refer to the material safety data sheet.


1. https://pubchem.ncbi.nlm.nih.gov/compound/Octabenzone#section=U-S-Exports
2. https://en.wikipedia.org/wiki/Octabenzone


Octabenzone appears as light yellow/yellowish crystals/fine powder and is odourless and freely soluble in benzene, n-hexane, and acetone; slightly soluble in ethanol; and very slightly soluble in ethane dichloride. Octabenzone is a light stabiliser with good performance, capable of absorbing the UV radiation of 240–340 nm wavelength with the characteristics of light colour, non-toxicity, good compatibility, small mobility, easy processing, etc. Octabenzone protects the polymer to its maximum extent and helps to reduce its colour. It can also delay the yellowing and impede the loss of its physical function. Industrial applications of octabenzone is very extensive and applied to PE, PVC, PP, PS, PC, organic glass, polypropylene fibre, ethylene-vinyl acetate, etc. Also, octabenzone has very good light-stability effect on drying phenol aldehyde, varnish of alcohol and acname, polyurethane, acrylate, expoxnamee, etc. The major uses include UV stabiliser, for example, polyethylene and polypropylene fibres.

Chemical Properties

Light yellow powder


To stabilize polyethylene against deterioration by ultraviolet light.

Octabenzone Preparation Products And Raw materials

Raw materials

Preparation Products

Octabenzone Suppliers

Global( 345)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
[email protected] CHINA 21751 58
Shanghai Bojing Chemical Co.,Ltd.
+86-21-37127788 [email protected] CHINA 493 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 [email protected] CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733 [email protected] CHINA 32447 55
+86 21 5161 9050/ 5187 7795
+86 21 5161 9052/ 5187 7796 [email protected] CHINA 24192 60
Anhui Royal Chemical Co., Ltd.
[email protected] CHINA 488 55
Tianjin Zhongxin Chemtech Co., Ltd.
022-66880086 [email protected] CHINA 575 58
Yancheng Green Chemicals Co.,Ltd
86-515-87883652 [email protected] CHINA 348 58
career henan chemical co
[email protected] CHINA 27142 58
[email protected] CHINA 925 58

View Lastest Price from Octabenzone manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-05-24 Octabenzone
US $1.00 / KG 1KG 95%-99.99% 1kg-10MT career henan chemical co
2018-07-25 Octabenzone
US $15.00 / KG 1KG 99% 1000kg career henan chemical co
2018-07-24 Octabenzone
US $11.00 / KG 1KG 99% 1000KG career henan chemical co

Octabenzone Spectrum

1843-05-6(Octabenzone )Related Search:

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