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High quality CAS1533-45-5 Fluorescent Whitening Agent FWA with good price

Name: High quality CAS1533-45-5 Fluorescent Whitening Agent FWA with good price
Brand: Goldstar
SKU: pr2509041618
Price: 9 USD
Availability: InStock

TDS 2 Inquiries

Unit Price: Get Latest Price 

CAS No.:

1533-45-5

Grade:

Industrial Grade

Content:

98%

Port:

Tianjin

Brand:

Goldstar

Packaging:

25kg/drum

Sample Available:

Yes

Price valid (until):

2026-08-14

Contact Supplier

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Hebei Goldstar Technology Co.,Ltd

Company Type:

Trader

Location:

China

Payment Terms:

TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance

Average Lead Time:

15 days

Qualification:

Main Products:

silver mercury,Cellulose acetate tow,SLES,LABSA,soap noodles,Lithium hydroxide

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Product Details
Seller Information
Inquiry History

Description

Product Detail

Fluorescent whitening agents (FWAs) are chemicals that absorb ultraviolet light and emit a blue-violet fluorescence, thereby enhancing the whiteness of materials. Their core function is to make surfaces appear brighter white by reflecting blue and green light from visible light.

Other English names for this term include:

Fluorescent Whitening Agent (FWA)
Fluorescent Brightener (FB)
Optical Brightening Agent (OBA)
Fluorescent Brightening Agent (FBA)

Fluorescent brighteners are fluorescent dyes, also known as white dyes, and are a general term for a class of compounds. Their characteristic is that they can stimulate incident light to produce fluorescence, giving the dyed substance a shimmering effect similar to fluorite, making the material appear very white to the naked eye.

Based on their chemical structure, they can be divided into five categories:
1. Stilbene type: Used in cotton fiber and certain synthetic fibers, papermaking, soap making, and other industries; exhibits blue fluorescence;
2. Coumarin type: Based on the coumarone structure, used in plastics such as celluloid and polyvinyl chloride; exhibits strong blue fluorescence;
3. Pyrazoline type: Used in fibers such as wool, polyamide, and acrylic; exhibits green fluorescence;
4. Benzophenone type: Used in fibers such as acrylic and plastics such as polyvinyl chloride and polystyrene; exhibits red fluorescence;
5. Phthalimide type: Used in fibers such as polyester, acrylic, and nylon; exhibits blue fluorescence.

Typical Applications
Textile Industry: Used to whiten fibers such as wool, silk, nylon, and acetate. It can also improve the post-wash whiteness of cotton fabrics.
Detergents: Added to laundry detergents to enhance the visual whiteness of fabrics after washing.
Plastics: Used to whiten plastics such as polypropylene and polyethylene.

Fluorescent brighteners are used in many industries, such as paper, plastics, leather, and detergents. They are also used in many high-tech fields, such as fluorescence detection, dye lasers, and anti-counterfeiting printing. They are even used in high-sensitivity films used for aerial photography to increase the sensitivity of the latex.

Model NO.	OB/OB-1/	Type	Synthetic
Solubility	Insolubility	Color Tone	White/Green/Pale Green
Melting Poin	280degree	Feature	Whitening and Brightening
Use	Plastic/Textile/Detergent/Paper etc	Grade	Industrial
CAS	Storage Temperature	Room Temperatur
Ultraviolet Absoroption	≥ 2000 Nm	Shelf Life	2 Year
UV Absorption	1105~1181	Plastic Brightener	Ob
Textile Brightener	Ob-1	Detergent Brightener	CBS-X
Papermaking Brightener	Fr127	Manufacture Factory	Heihu Best New Material
Transport Package	25kg/Carton/by Sea	Specification	OB/BO-1
Trademark	Heihu	Origin	China
HS Code	3204200000	Production Capacity	9000pieces/Year

Company Detail

Our company offers a variety of products which can meet your multifarious demands. We have adhered to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy the potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force.

FAQ

Q：Can you make packing and logo as customer request?

A：Yes we can, if you have special needs, please contact us.

Q: Could You supply the samples for we test?

A: Yes, no problem, pls contact with us our workable for samples.

Q: How long is your delivery time?

A: lt usually takes 10 days if the goods are in stock, or 10-15 days if the goods are not, depending on the quantity ordered.

Q: Do you have stock?

A: We have a high sales volume in China, there is sufficient stock, and it can also be customized according to your requirements,please rest assured.

Q: What is the minimum order quantity?

A: The minimum order quantity depends on the product range. For most items, it is 25kg for powder . If you want smaller order, please contact us directly.

ECHEMI Editorial Reference

solid
DryPowder

Certificates

Basic Info

Product Name:

4,4′-Bis(2-benzoxazolyl)stilbene

Other Name:

Benzoxazole,2,2′-(1,2-ethenediyldi-4,1-phenylene)bis-;Benzoxazole,2,2′-(vinylenedi-p-phenylene)bis-;2,2′-(1,2-Ethenediyldi-4,1-phenylene)bis[benzoxazole];p,p′-Bis(2-benzoxazolyl)stilbene;2,2′-(Vinylenedi-p-phenylene)bisbenzoxazole;4,4′-Di(benzoxazol-2-yl)stilbene;4,4′-Bis(2-benzoxazolyl)stilbene;Optical Brightener 1;C.I. 40674;Fluorescent Brightener 393;C.I. Fluorescent Brightener 393;Eastobrite OB 1;OB 1;Uvitex OB 1;Uvitex OB-ONE;Eastobrite OB 3;TM;TM (UV stabilizer);Benetex OB 1;2,2′-(1,2-Ethenediyl)bis(4,1-phenylene)bisbenzoxazole;Fluorescent brightener OB 1;1,2-Bis(4-(benzo[d]oxazol-2-yl)phenyl)ethene;2-[4-[2-[4-(1,3-Benzoxazol-2-yl)phenyl]ethenyl]phenyl]-1,3-benzoxazole;Benetex OB 1HP;120366-98-5;2252271-38-6

CAS No.:

1533-45-5

Molecular Formula:

C28H18N2O2

InChIKeys:

InChIKey=ORACIQIJMCYPHQ-UHFFFAOYSA-N

Molecular Weight:

414.45

Exact Mass:

414.45

EC Number:

216-245-3

HScode:

29349990

Categories:

Characteristics

PSA:

52.1

XLogP3:

7.47340

Appearance:

DryPowder

Density:

1.2151 (rough estimate)

Melting Point:

365-368 °C

Boiling Point:

533.34°C (rough estimate)

Flash Point:

285.1±21.0 °C

Refractive Index:

1.5800 (estimate)

Storage Conditions:

-20°C

Vapor Pressure:

2.79E-12mmHg at 25°C

See More 4,4′-Bis(2-benzoxazolyl)stilbene Properties 

Hazard Identification

Classification of the substance or mixture

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	No signal word
Hazard statement(s)	H411 Toxic to aquatic life with long lasting effects
Prevention	P273 Avoid release to the environment.
Response	P391 Collect spillage.
Storage	none
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More 4,4′-Bis(2-benzoxazolyl)stilbene Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
silver mercury,Cellulose acetate tow,SLES,LABSA,soap noodles,Lithium hydroxide

Location:
Room 2701, Building4,Tatan International Trade Plaza, South of Shengli street, Qiaoxi District ,Shijiazhuang city

Payment Terms:
TT against copy of documents,L/C,TT against B/L draft before shipment,100% TT in advance

Average lead Time:
15 days

Total Annual Revenue:
$10 million-$25 million

Total Employees:
11-50

Year of Establishment:
2020

Management principles
Our company offers a variety of products which can meet your multifarious demands. We have adhered to the management principles of "quality first, customer first and credit-based" since the establishment of the company and always do our best to satisfy the potential needs of our customers. Our company is sincerely willing to cooperate with enterprises from all over the world in order to realize a win-win situation since the trend of economic globalization has developed with an irresistible force.

Passed the ISO 9001: 2008 certificate
We specialize in chemical products that have covered most regions of China and exported to foreign countries and regions such as Europe, USA and Southeast Asia. For many years, the company has taken advantage of its merits to develop high-tech well-known products. Our capacity and efficiency have been improved rapidly. The National Ministry of Science and Technology named our company "National Key High-tech Enterprise" in 2003. The company has passed the ISO 9001: 2008 certificate of CQC.

Business philosophy
We will continue to focus the development on the principle of an "energy-saving, emission reducing and recycling economy", to insist on independent innovation and technology-driven, to covert practical resources and technical advantages into an industrial advantage, and to combine reasonably the economic benefits with society. At the same time, Loman Corp. will practice our struggle goal of "the super excellent Loman, the global Loman, the centennial Loman".

Comply with ISO 9001 and ISO 2000 standards
We now have more than 80 people in our team and built research centers in Jinan and Qingdao. Our manufacturing site is allocated to the chemical industry parks of Zhangqiu, Heze, Dezhou and Ningxia Fine Chemical Park. We strictly comply with ISO 9001 and ISO 2000 standards in the manufacturing process, and our lab and workshop are tightly in accordance with GMP standards. Our products are best selling in Europe, South and North America, Asia Pacific area and Africa. We sincerely welcome new and regular customers around the world to visit us for business negotiation.

Inquiry History

2 Inquiries

Country	Product	Purchase Quantity	Date Posted
Kuwait	Optical brightener	1 MT	Jul 24, 2025
India	OB-1	1000 KG	Aug 4, 2025

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High quality CAS1533-45-5 Fluorescent Whitening Agent FWA with good price

Product Details

Seller Information

Inquiry History

FAQ

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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