<tt id="qswwi"></tt>
<acronym id="qswwi"><small id="qswwi"></small></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
<sup id="qswwi"><div id="qswwi"></div></sup>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
ChemicalBook >> CAS DataBase List >>Octabenzone


Chemical Name:
UV-531;BP-12;uv1;531;CHIMASSORB 81;BENZOPHENONE-12;2-HYDROXY-4-(OCTYLOXY)BENZOPHENONE;uf4;Hostavin ARO 8;UV absorber 531
Molecular Formula:
Molecular Weight:
MDL Number:
MOL File:
MSDS File:
Last updated:2023-11-16 17:07:08

Octabenzone Properties

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)
color Off-White to Light Yellow
Specific Gravity 1.160
Merck 14,6742
BRN 1915198
LogP 7.360 (est)
Indirect Additives used in Food Contact Substances 2-HYDROXY-4-N-OCTOXY-BENZOPHENONE
FDA 21 CFR 178.2010
CAS DataBase Reference 1843-05-6(CAS DataBase Reference)
EWG's Food Scores 2
NIST Chemistry Reference Octabenzone(1843-05-6)
EPA Substance Registry System 2-Hydroxy-4-octyloxybenzophenone (1843-05-6)


Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
Signal word  Warning
Hazard statements  H317
Precautionary statements  P280
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
Toxicity LD50 oral in rat: > 10gm/kg
NFPA 704
0 0

Octabenzone price More Price(22)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 413151 2-Hydroxy-4-(octyloxy)benzophenone 98% 1843-05-6 100g $71.5 2023-06-20 Buy
TCI Chemical H0288 2-Hydroxy-4-n-octyloxybenzophenone >98.0%(GC) 1843-05-6 25g $22 2023-06-20 Buy
TCI Chemical H0288 2-Hydroxy-4-n-octyloxybenzophenone >98.0%(GC) 1843-05-6 500g $136 2023-06-20 Buy
Alfa Aesar L11750 2-Hydroxy-4-n-octyloxybenzophenone, 99% 1843-05-6 25g $17.9 2021-12-16 Buy
Alfa Aesar L11750 2-Hydroxy-4-n-octyloxybenzophenone, 99% 1843-05-6 100g $35.4 2021-12-16 Buy
Product number Packaging Price Buy
413151 100g $71.5 Buy
H0288 25g $22 Buy
H0288 500g $136 Buy
L11750 25g $17.9 Buy
L11750 100g $35.4 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

Physical properties of Octabenzone


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

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.


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 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%).


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

Synthesis of Octabenzone from 2,4-Dihydroxybenzophenone and 1-Chlorooctane
Global( 566)Suppliers
Supplier Tel Email Country ProdList Advantage
Qingdao Truelight functional Material Technology Co., Ltd.
+86-13573844393 songjames@truelightchem.com China 217 58
Henan Bao Enluo International TradeCo.,LTD
+86-17331933971 +86-17331933971 deasea125996@gmail.com China 2509 58
Capot Chemical Co.,Ltd.
571-85586718 +8613336195806 sales@capotchem.com China 29767 60
Shanghai Bojing Chemical Co.,Ltd.
+86-86-02137122233 +8613795318958 bj1@bj-chem.com China 296 55
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21719 55
Hangzhou FandaChem Co.,Ltd.
+8615858145714 fandachem@gmail.com China 9365 55
+undefined-21-51877795 ivan@atkchemical.com China 32237 60
Anhui Royal Chemical Co., Ltd.
+86-25-86655873 +8613962173137 marketing@royal-chem.com China 535 55
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418679 +86-18949832763 info@tnjchem.com China 2990 55
Tianjin Zhongxin Chemtech Co., Ltd.
+86-022-66880623 +8618622897568 sales@tjzxchem.com China 555 58

View Lastest Price from Octabenzone manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Octabenzone pictures 2023-11-30 Octabenzone
US $0.00-0.00 / kg 1kg 99% 1000000 Hebei Jingbo New Material Technology Co., Ltd
US $0.00 / KG 1drums 98.0% 1000TON Qingdao Truelight functional Material Technology Co., Ltd.
Octabenzone  UV-531  pictures 2023-09-08 Octabenzone UV-531
US $6.80 / kg 1kg 99 1500ton/year Hebei Yanxi Chemical Co., Ltd.
  • Octabenzone pictures
  • Octabenzone
  • US $0.00-0.00 / kg
  • 99%
  • Hebei Jingbo New Material Technology Co., Ltd
[2-Hhydroxy-4-(octyloxy)phenyl]phenylmethanone 2-HYDROXY-4-N-OCTOXYBENZOPHENONE 2-HYDROXY-4-N-OCTYLOXYBENZOPHENONE 2-HYDROXY-4-(OCTYLOXY)BENZOPHENONE 2-HYDROXY-4-(OCTYLOXYL)-BENZOPHENONE CHIMASSORB 81 BENZOPHENONE-12 Octabenzone UV-531 (2-hydroxy-4-(octyloxy)phenyl)phenyl-methanon aduvex248 advastab46 anti-uvp Benzon OO benzonoo Benzophenone, 2-hydroxy-4-(octyloxy)- biosorb130 carstab700 Cyasorb UV 531 cyasorbuv531 Hostavin ARO 8 uf4 UltravioletabsorbentUV-531 UV 1 uv1 uv1(ultrovioletabsorber) uva1 Uvinul 408 uvinul408 uvinulm408 UV absorber 531 (2-hydroxy-4-octoxy-phenyl)-phenyl-methanone (2-hydroxy-4-octoxyphenyl)-phenylmethanone UV-531,BP-12 UV-531(2-Hydroxy-4-n-octyloxybenzophenone) Hydroxy-4-(octyloxy)benzoph Ultraviolet Absorbent UV-531(BP-12) 2-hydroxy -4-octylethoxybenzophenonetwo 2-Hydroxy-4-n-octyloxybenzophenone , 98.0%(GC&T 2-Hhydroxy-4-(octyloxy)phenyl]phenylmethanone UV-531 2-Hydroxy-4-n-octoybenzophenone(BP-12) Octabenzone UV-531 1-cyclohexa-2,4-dienone (2-hydroxy-4-(octyloxy)phenyl)phenylmethanone [2-Hydroxy-4-(octyloxy)phenyl]phenyl- [2-hydroxy-4-(octyloxy)phenyl]phenyl-methanon [2-Hydroxy-4-(octyloxy)phenyl]phenylmethanone [2-hydroxy-4-(octyloxy)phenyl]phenyl-Methanone 2-Benzoyl-5-(Octyloxy)phenol 2-benzoyl-5-octyloxyphenol 2-Hydroxy-4-(octoxy)benzophenone 2-hydroxy-4-(octyloxy)-benzophenon 2-hydroxy-4-0ctyloxybenzophenone 2-hydroxy-4-octoxybenzophenone 2-Hydroxy-4-oktyloxybenzofenon BP-12 4-(n-Octyloxy)-2-hydroxybenzophenone 4-(Octoxy)-2-hydroxybenzophenone
<tt id="qswwi"></tt>
<acronym id="qswwi"><small id="qswwi"></small></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
<sup id="qswwi"><div id="qswwi"></div></sup>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"></acronym>
<acronym id="qswwi"><center id="qswwi"></center></acronym>
久久免费观看国产精品 欧美日韩大片| 三级完整版国语在线播放| 久久亚洲日本欧美AⅤ精品| 亚洲激情在线| 亚洲Aⅴ无码一区二区三区乱| 色老99九久精品偷偷鲁| 久久无码中文字幕| 国内毛片| 国产精品久久久久精品首页人妖| 欧洲精品无码一区二区三区在线| 欧美大肥BBWBBW高潮| 人妻爽夜夜爽天天爽三区麻豆AV| 精品伊人久久大香线蕉综合| 日本护士XXXX高潮免费| 久久亚洲精精品中文字幕| 少妇洁白小1-178| 国产精品久久久久精品三级| 18禁成年无码免费网站| 秋霞鲁丝网| 久久成人免费视频| 国产精品香港三级在线| 骚虎影视| 国内精品伊人久久久影院| 熟妇的奶头又大又粗视频| 色cccwww在线播放| 中文字幕一区二区三区久久网站| 在线精品国产一区二区| 亚洲欧美在线视频| 成人三级a视频在线观看| 免费精品一区二区三区在线观看| 亚洲国产精品国自产拍AV最新| 亚洲av无码一区二区三区乱码| 337p粉嫩胞人体高清视频| 最近国语视频在线观看www| 亚洲国产精品久久久久浪潮AV| 亚洲色www成人永久网址| 18款禁用软件APP入口安卓版| 在线观看91精品国产麻豆蜜桃| 日本丰满巨肥大屁股bbw| 欧美色图片区| 国产呦系列| http://www.pfyazb.cn http://www.realbreast.cn http://www.162b3.cn