Characterization Description Applications Physical properties Uses Features/benefits Analytic Laboratory Methods Guidelines for use Handling & Safety References
ChemicalBook > CAS DataBase List > Octabenzone

Octabenzone

Characterization Description Applications Physical properties Uses Features/benefits Analytic Laboratory Methods Guidelines for use Handling & Safety References
Product Name
Octabenzone
CAS No.
1843-05-6
Chemical Name
Octabenzone
Synonyms
UV-531;BP-12;uv1;531;CHIMASSORB 81;BENZOPHENONE-12;2-HYDROXY-4-(OCTYLOXY)BENZOPHENONE;uf4;Hostavin ARO 8;UV absorber 531
CBNumber
CB0441308
Molecular Formula
C21H26O3
Formula Weight
326.43
MOL File
1843-05-6.mol
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Octabenzone Property

Melting point:
47-49 °C(lit.)
Boiling point:
424.46°C (rough estimate)
Density 
1.160g/cm3
refractive index 
1.6000 (estimate)
Flash point:
102℃
storage temp. 
Sealed in dry,Room Temperature
solubility 
Chloroform (Slightly), Methanol (Slightly, Sonicated)
form 
Solid
pka
7.59±0.35(Predicted)
Specific Gravity
1.160
color 
Off-White to Light Yellow
Merck 
14,6742
BRN 
1915198
InChIKey
QUAMTGJKVDWJEQ-UHFFFAOYSA-N
LogP
7.360 (est)
CAS DataBase Reference
1843-05-6(CAS DataBase Reference)
NIST Chemistry Reference
Octabenzone(1843-05-6)
EPA Substance Registry System
2-Hydroxy-4-octyloxybenzophenone (1843-05-6)
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Safety

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
TSCA 
Yes
HS Code 
29145090
Hazardous Substances Data
1843-05-6(Hazardous Substances Data)
Toxicity
LD50 oral in rat: > 10gm/kg
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H317May cause an allergic skin reaction

Precautionary statements

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
413151
Product name
2-Hydroxy-4-(octyloxy)benzophenone
Purity
98%
Packaging
100g
Price
$75.1
Updated
2024/03/01
TCI Chemical
Product number
H0288
Product name
2-Hydroxy-4-n-octyloxybenzophenone
Purity
>98.0%(GC)
Packaging
25g
Price
$23
Updated
2024/03/01
TCI Chemical
Product number
H0288
Product name
2-Hydroxy-4-n-octyloxybenzophenone
Purity
>98.0%(GC)
Packaging
500g
Price
$140
Updated
2024/03/01
Alfa Aesar
Product number
L11750
Product name
2-Hydroxy-4-n-octyloxybenzophenone, 99%
Packaging
100g
Price
$35.4
Updated
2021/12/16
Alfa Aesar
Product number
L11750
Product name
2-Hydroxy-4-n-octyloxybenzophenone, 99%
Packaging
25g
Price
$17.9
Updated
2021/12/16
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Octabenzone Chemical Properties,Usage,Production

Characterization

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.

Description

Octabenzone(1843-05-6) 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.

Applications

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

Uses

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

Features/benefits

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.

References

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

Description

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

Uses

To stabilize polyethylene against deterioration by ultraviolet light.

Uses

HOBPs are UV absorbers for insulating plastics, which can be incorporated with active layers to increase the stabilization of organic solar cells (OSCs). It may be incorporated in parylene C films to enhance the light stability, which can be potentially used as a moisture transfer membrane for electronic boards and photovoltaics.

Preparation

Preparation by reaction of n-octyl chloride with 2,4-di-hydroxybenzophenone,
in the presence of a mixture of sodium carbonate, triethylamine and potassium iodide in refluxing butanol for 15 h (90%); 
in the presence of potassium carbonate in cyclohexanone at 145° for 5 h (66%);
in the presence of potassium hydroxide and antimony triiodide in diethylene glycol at 150° for 1 h (93%);
in the presence of sodium bicarbonate and potassium iodide in 1-methylpyrrolidone for 2 h at 150° (96%).

Definition

ChEBI: Octabenzone is a member of benzophenones.

General Description

2-Hydroxy-4-(octyloxy)benzophenone (HOBP) is a UV based absorber that has 2-hydroxybenzophenone as a functional group. It can be used to enhance the light fastness of polymers using UV absorbers with sulfur and phosphorus compounds.

Flammability and Explosibility

Not classified

Octabenzone Preparation Products And Raw materials

Raw materials

Ethanol 2,4-Dihydroxybenzophenone Resorcinol Hydrochloric acid 1-Chlorooctane Benzophenone-1 Disodium 2,2'-dihydroxy-4,4'-dimethoxy-5,5'-disulfobenzophenone

Preparation Products

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Octabenzone Suppliers

Americas 1 Canada 2 China 502 Europe 4 France 1 Germany 8 India 11 Japan 9 South Korea 6 Sweden 1 Switzerland 1 The Netherlands 3 Turkey 1 Ukraine 1 United Kingdom 10 United States 47 Global 608
HBCChem, Inc.
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TargetMol Chemicals Inc.
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+1-781-999-5354 +1-00000000000
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marketing@targetmol.com
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View Lastest Price from Octabenzone manufacturers

Hebei Andu Technology Com.,Ltd
Product
Octabenzone 1843-05-6
Price
US $3.60/kg
Min. Order
1kg
Purity
≥99%
Supply Ability
3000tons/month
Release date
2024-07-27
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Octabenzone 1843-05-6
Price
US $120.00-65.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20ton
Release date
2024-04-28
Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
uv absorber 531 1843-05-6
Price
US $60.00/kg
Min. Order
1kg
Purity
99
Supply Ability
5000
Release date
2024-05-15

1843-05-6, Octabenzone Related Search:

Diphenyl ether 4-Methylbenzophenone UV Absorber 326 4-Hydroxybenzophenone Ethyl 4-[[(methylphenylamino)methylene]amino]benzoate Oxybenzone 2-Methylbenzophenone UV-329 3-Methylbenzophenone Drometrizole Benzophenone hydrazone PHENYL VALERATE 4-HYDROXYBENZOIC ACID N-AMYL ESTER CHLOROPHOSPHONAZO III Hydroxy silicone oil 4-Methoxybenzophenone 2-Phenylbenzimidazole-5-sulfonic acid Benzophenone

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  • [2-hydroxy-4-(octyloxy)phenyl]phenyl-methanon
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  • [2-hydroxy-4-(octyloxy)phenyl]phenyl-Methanone
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