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UV absorber UV-9

description Chemical properties Application and Synthesis Improvement of UV - 9 Production Process

UV absorber UV-9

CAS No.131-57-7
Chemical Name:UV absorber UV-9
CBNumber:CB9276251
Molecular Formula:C14H12O3
Formula Weight:228.24
MOL File:131-57-7.mol

UV absorber UV-9 Property

Melting point 62-64 °C(lit.)
Boiling point 150-160 °C5 mm Hg(lit.)
Density 1,3 g/cm³
vapor pressure 0.001Pa at 25℃
refractive index 1.5805 (estimate)
Flash point 216°C
storage temp. 2-8°C
solubility 95% ethanol: soluble50mg/mL, clear, colorless
form Crystalline Powder
pka 7.56±0.35(Predicted)
color White to light yellow
Odor ylsh. cryst., rose-like odor
Water Solubility <0.1 g/100 mL at 20 ºC
Merck 14,6954
BRN 1913145
InChIKey DXGLGDHPHMLXJC-UHFFFAOYSA-N
LogP 3.45 at 40℃
CAS DataBase Reference 131-57-7(CAS DataBase Reference)
Indirect Additives used in Food Contact Substances OXYBENZONE
FDA 21 CFR 177.1010; 201.327
EWG's Food Scores 6-8
FDA UNII 95OOS7VE0Y
NIST Chemistry Reference Oxybenzone(131-57-7)
EPA Substance Registry System 2-Hydroxy-4-methoxybenzophenone (131-57-7)
Cosmetics Info Oxybenzone
UNSPSC Code 85151701
NACRES NA.24

Safety

Hazard Codes :Xi
Risk Statements :36/37/38
Safety Statements :26-36-37
RIDADR :UN 3077 9/PG III
WGK Germany :2
RTECS :DJ1575000
TSCA :Yes
HazardClass :9
PackingGroup :III
HS Code :29145000
Hazardous Substances Data :131-57-7(Hazardous Substances Data)
Toxicity :LD50 orally in rats: >12.8 g/kg (Lewerenz)

NFPA 704:

	1
0		0

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordWarning
Hazard statements H410
Precautionary statements P273-P391-P501

UV absorber UV-9 Price More Price(12)

Brand: Sigma-Aldrich(India)
Product number: H36206
Product name : 2-Hydroxy-4-methoxybenzophenone
Purity: 98%
Packaging: 5G
Price: ₹1872.73
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: H36206
Product name : 2-Hydroxy-4-methoxybenzophenone
Purity: 98%
Packaging: 100G
Price: ₹2370.68
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: PHR1074
Product name : Oxybenzone
Purity: Pharmaceutical Secondary Standard; Certified Reference Material
Packaging: 1G
Price: ₹8465.15
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: H36206
Product name : 2-Hydroxy-4-methoxybenzophenone
Purity: 98%
Packaging: 500G
Price: ₹6733.15
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 59647
Product name : Oxybenzone
Purity: analytical standard
Packaging: 50MG
Price: ₹8670.83
Updated: 2022/06/14
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UV absorber UV-9 Chemical Properties,Usage,Production

description Oxybenzone is an organic compound used in sunscreens. It is a derivative of benzophenone. It forms colorless crystals that are readily soluble in most organic solvents. It is used as an ingredient in sunscreen and other cosmetics because it absorbs UV-A ultraviolet rays.
Oxybenzone absorbs UVB and UVA II rays, resulting in a photochemical excitation and absorption of energy. Upon return to ground state, the absorbed energy results in emission of longer wavelength radiation and decreased skin penetration of radiation which reduces the risk of DNA damage.
Chemical properties light yellow crystalline powder, soluble in ethanol, acetone and other organic solvents, insoluble in water.
Application and Synthesis UV-9 is a light yellow or white crystalline powder, also known as sunscreen 2, BP-3, suitable for polyvinyl chloride, polyvinylidene chloride, polymethyl methacrylate , unsaturated polyester, ABS resin and cellulose resin and other plastics, the maximum absorption wavelength range of 280-340 nm, the general amount of 0.1-1.5%, good thermal stability, does not decompose at 200 ℃. This product hardly absorb visible light, it applies to light-colored transparent products. This product can also be used for paints and synthetic rubber. For the broad-spectrum UV absorbers, with high absorption rate, non-toxic, non-teratogenic effect, light, thermal stability. UV-9 can absorb UV-A and UV-B together, is the US FDA approved Class I sunscreen and being used with a higher frequency in the US and European countries. UV-9 is widely used in sunscreen cream, cream, honey, lotion, oil and other sunscreen cosmetics, but also as a product from the photosensitive and discoloration of the anti-discoloration agent. In addition, it is usually used for PVC and unsaturated polyester and many other fields, because UV-9 has good compatibility with many kinds of plastics and resins.
Improvement of UV - 9 Production Process Using mixed acid as catalyst, trichloromethylbenzene and resorcinol were condensed into intermediate 2,4-dihydroxydiphenyl ketone in aqueous phase, and then the catalyst was treated with phase transfer catalyst, etherification of the target product UV-9.
Chemical Properties white to light yellow crystalline powder
Uses Oxybenzone is an organic compound used in sunscreens. Oxybenzone is used as an ingredient in sunscreen and other cosmetics because it absorbs UVB and short-wave UVA (ultraviolet) rays. Oxybenzone was one of the first compounds incorporated into sunscreen formulations to offer enhanced UVA protection because its absorption spectrum extends to less than 350 nm.
Uses Ultraviolet light absorber and stabilizer, especially in plastics and paints.
Uses Sunscreen. UV stabilizer
Uses benzophenone-3 (oxybenzone) is an oil-soluble uV absorber and filter with absorption rates within the uVA and uVB peak ranges. It has an approved usage level of up to 6 percent in the united States and 10 percent in the european union. Benzophenone-3 enhances SPF and is popular among sunscreen formulators given a concern over potential safety problems associated with more traditional sunscreen chemicals. However, some reports associate it with causing photocontact allergy. It is considered a non-comedogenic raw material.
Uses ultraviolet screen
Uses oxybenzone (benzophenone-3) is the drug name for an FDAapproved uV filter and absorber.
Preparation Preparation by partial methylation of 2,4- dihydroxy-benzophenone,
? with methyl iodide in the presence of sodium hydroxide;
? with a methyl halide;
? with dimethyl sulfate in the presence of sodium hydroxide or alkaline solution.
Definition ChEBI: A hydroxybenzophenone that is benzophenone which is substituted at the 2- and 4-positions of one of the benzene rings by hydroxy and methoxy groups respectively.
brand name Uvinul M40 (BASF).
Synthesis Reference(s) Tetrahedron, 42, p. 885, 1986 DOI: 10.1016/S0040-4020(01)87495-0
General Description White to off-white or light yellow powder.
Air & Water Reactions Insoluble in water.
Fire Hazard Flash point data for Oxybenzone are not available; however, Oxybenzone is probably combustible.
Flammability and Explosibility Non flammable
Contact allergens BZP-3 is used as a direct sunscreen agent and in antiaging creams. Allergic reactions have been reported. Cross-reactivity is expected in an average of one in four patients photoallergic to ketoprofen.
Safety Profile Poison by intraperitoneal route. Mddly toxic by ingestion. Experimental reproductive effects. Mutation data reported. When heated to decomposition it emits acrid smoke and irritating fumes.