131-57-7 Absorber UV 9 / Oxybenzone

• CAS No.: 1843-05-6
• Formula: C21h26o3
• EINECS: 217-421-2
• Color: Yellow
• Appearance: Powder
• Product Name: Oxybenzone
• Model NO.: Cosmetic
• Synonyms: Benzophenone-3, UV-9
• Assay: 99.0%
• Congealing Temperature: 62.0oc Min
• Loss on Drying: ≤2.0%
• Transport Package: 25kgs Cardboard Drum
• Specification: cosmetic grade
• Trademark: SW
• Origin: P. R. China
• Production Capacity: 10mts/Month

Product Description

Oxybenzone or benzophenone-3 (trade names Milestab 9, Eusolex 4360, Escalol 567, KAHSCREEN BZ-3) is an organic compound. It is a white solid that is readily soluble in most organic solvents. Oxybenzone belongs to the class of aromatic ketones known as benzophenones. It is a component of many sunscreen lotions.

Product Name:       Oxybenzone
CAS No.:                131-57-7
Synonyms            Benzophenone-3; 2-Hydroxy-4-methoxybenzophenone; UV-9; 2-Benzoyl-5-methoxyphenol; 4-Methoxy-2-hydroxybenzophenone; HMB
Molecular Formula C14H12O3
Molecular Weight   228.24
EINECS/ELINCS       205-031-5
Structure              

Properties
Appearance           Pale yellow crystalline powder
Melting Point         62.0-65.0ºC
Solubility                Insoluble in water.
Stability                   stable under ordinary conditions

Specification:

Items	Specifications
Appearance	Pale yellow crystalline powder
Assay	99.0% min
Melting point	62 ~ 65ºC
Loss on drying	0.5% max
Absorption rate (E1% 1cm) in methanol, 285nm wavelength	630 min
Absorption rate (E1% 1cm) in methanol, 325nm wavelength	400 min

Application
Oxybenzone  is used as an ingredient in sunscreen and other cosmetics.

Introducton and Application:

Oxybenzone is used in plastics as an ultraviolet light absorber and stabilizer. It is used, along with otherbenzophenones, in sunscreens, hair sprays, and cosmetics because they help prevent potential damage from sunlight exposure. It is also found, in concentrations up to 1%, in nail polishes. Oxybenzone can also be used as a photostabilizer for synthetic resins. Benzophenones can leach from food packaging, and are widely used as photo-initiators used to start a chemical that dries ink faster.
As a sunscreen, it provides broad-spectrum ultraviolet coverage, including UVB and short-wave UVA rays. As aphotoprotective agent, it has an absorption profile spanning from 270 to 350 nm with absorption peaks at 288 and 350 nm. It is one of the most widely used organic UVA filters in sunscreens today. It is also found in nail polish, fragrances, hairspray, and cosmetics as a photostabilizer. Despite its photoprotective qualities, much controversy surrounds oxybenzone because of its possible hormonal and photoallergenic effects, leading many countries to regulate its use.

Frequently Asked Questions

Q1: May I get one sample before placing order?
Re: Yes, Sample are available. For normal products, samples are for free and you just need to bear the freight; 

For those high value products, you just need to freight and certain product cost. When we both cooperate for 

some times or when you are our VIP customer, free sample will be offered when you need.

Q2: Which payment is available for your company?
Re: T/T, L/C. You can choose the one which is convenient for you. 

Q3: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, TNT etc.) 

or by air. Usually it will cost 3-5days that you can get the goods after delivery.For large quantity products,

shipping by see is worthwhile.It will cost days to weeks to come to your destination port, which depends on 

where the port is.

Q4: Is there any possible to use my appointed label or package?
Re: Yes. If needed, we'd like to use label or package according to your requirement. 

Q5: How can you guarantee the goods you offer is qualified? 
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide 

for you all are qualified. We will have goods tested and provide COA before delivery for sure.