351# Optical Brightener CBS-X for Washing Powder

Get the best optical brightener CBS-X for washing powder from our factory. High quality and effective for brightening clothes. Order now!
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  • Overview
  • Product Parameters
  • Detailed Photos
  • Application
  • Important Notice
  • Factory Photos
  • Company Profile

Basic Info.

Model NO.
Application Material
Natural Silk
UV absorption
Max UV absorption
Molecular weight
Shelf life
24 months
Transport Package
Fiber drum / carton
HS Code
Production Capacity
50000 T/a

Product Description

351# Optical Brightener CBS-X for Washing Powder
Items for Detergent Powder
Item Product Name Other name CAS No.
APSM Active Poly Sodium Metasilicate (APSM) Sodium Poly Metasilicate 1344-09-8
AOS Alpha Olefin Sulphonate (AOS 92%) Sodium Alpha-olefin Sulfonate 68439-57-6
Zeolite 4A Zeolite Sodium Aluminosilicate, Molecular sieve 4A N/A
CSF Caustic Soda Flakes (CSF 99%) Sodium Hydroxide 1310-73-2
AEO-7 Fatty Alcohol Ethoxylated 7MOL (AEO-7) Primary Alcohol Ethoxylate, Peregal, FAE-7EO 68439-50-9
LABSA Linear Alkyl Benzene Sulphonic Acid 96% (LABSA) Dodecyl Benzene Sulphonic Acid 27176-87-0
LAS 80 Linear Alky Benzene Sulphonic Acid Sodium Salt 80% (LAS) Sodium Salt of LABSA 25155-30-0
MSD Modified Sodium Disilicate (MSD) Complex Sodium Disilicate, CSDS 1344-09-8
CBS-X Optical Brightener (CBS-X) C.I.351, 4,4'-Bis(2-Disulfonic Acid Styryl) Biphenyl 27344-41-8
DMS Optical Brightener (DMS) DMS-416 16090-02-1
PAA Polyacrylic Acid Sodium Salt (PAA) Sodium Polyacrylate, Sokalan PA15/20/30/40/50, Acusol 445N 9003/4/7
PMA Poly Aacrylic Acid - Maleic Acid Copolymer (PMA) Poly Acrylic Acid and Maleic Acid Sodium Salt Homopolymer 52255-49-9
SAL Sodium Carbonate 99.2% (SAL) Soda Ash Light 497-19-8
CMC Sodium Carboxy Methyl Cellulose (CMC) Cellulose 9004-32-4
NaCl Sodium Chloride (NaCl) Industrial Salt 7647-14-5
SMA Sodium Metasilicate Anhydrous (SMA)   6834-92-0
SMP Sodium Metasilicate Pentahydrate (SMP) SMS-5H2O 10213-79-3
SPC Sodium Percarbonate Coated (SPC) Sodium Carbonate Hydrogen, Solid Hydrogen Peroxide 15630-89-4
SSA Sodium Sulphate Anhydrous (SSA) Sodium Sulfate, Glauber Salt 7757-82-6
SPK Sodium Sulphate Colorful Speckles (SPK) Detergent Builder Speckles 7757-82-6
STPP Sodium Tripolyphosphate (STPP) Pent-sodium Phosphate 7758-29-4
TAED Tetra Acetyl Ethylene Diamine (TAED) Bleaching Activator 10543-57-4
SSS Sodium Silicate Solid (SSS) Silicate Lumps 1344-09-8, 106985-35-7

Optical Brightener CBS-X

Product Parameters

Appearance: yellow or yellowish green powder or granular.

Solubility: soluble in water.

1. CBS-X is a disulfonic distyrylbiphenyl compound, has better brighten intensity on cotton cloth as much as 2.7 times as bis(triazinylamino) stilbene derivatives, and has good optical blue color monitor, dissolve and disperse properties.
2. CBS-X has good dispersing ability when dissolving, and stable in the solution of sodium hypochlorite, so it's compatible with detergent with bleaching agent.
3. CBS-X is environmental friendly, considering the small dosage in the detergent system, the residue on fabrics is very limited, and it can be light degraded and biodegraded easily. Different tests proved that CBS-X will not accumulated in fishes' organs.
4. CBS-X is non-toxic and no harm to human, and no irritation to skins either.

Main indexes:
Index Standard
Smell Odorless
Max UV absorption Spectrum by nm 348 - 350
Extinction value 0.829 - 0.885
1% extinction index (E index) 1105 - 1181
Moisture by wt % 5.0 max


Detailed Photos

351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder



1. Normal detergent powder.
2. Concentrated detergent powder.
3. Liquid detergent.
4. Soap.
5. Softener.
6. Washing syrup and etc.

Suggested dosage in detergent industry:
Products Dosage by %
Normal detergent powder 0.005~0.03
Concentrated detergent powder 0.01~0.05
Liquid detergent 0.02~0.06
Soap 0.01~0.05
Softener 0.01~0.05
Washing syrup 0.005~0.02

Important Notice

1. There are more than 5000 brighteners on the world market, they are actually different brand names and numbers from different producers/ distributors for less than 400 chemical compounds. On China's market, the main names/ types are: BBU, CXT, BA-L, BA, APC, DMS(AMS), MST, 210, VBL, BBU, DT, VBU, BA, BC, DMS, FB-351, CBS-L, BA-L, 31#, CBW, 5BM, OB-1, APC, VBL, CXT, BBC, BST, BC-100, ER, ERI, BBU, CBS-L, PS(PF), OB, KB, OB-1, KCB, KSN, DBH-1, APH, APB-L, ER, KCB, KSN, PF, NFW, HPE and etc.
2. CBS-X has better performance when applicating together with optical brightener DMS.
3. We normally list 24 months as the shelf life in our COA, the real shelf life can be slightly longer than 24 months if it's stocked in good condition (bags are sealed enough, away from direct sun-light, moisture and other incompatible chemical materials), but it's still suggested to avoid long time storage.


Factory Photos

351# Optical Brightener CBS-X for Washing Powder

Company Profile

LK (Nanjing) Co., Ltd. Is the initial member of the brand name RAWCHEM, established in 2008, served as the representative office of an European comprehensive trading company in its early years, mainly dealing with the import and export business of raw chemical materials for the detergent industry, now we have become an industrial company, focused on the detergent industry. 

351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder

Everything for detergent, for detergent's everything.

Save time and money for our customers.
Create and develop the platform for the developing of our employees and partners.
Contribute to the greenization of the detergent-use raw chemicals.
Reduce the use of plastic packages in the detergent industry.

Based on our business motto, according to the different type of our customers, our business is divided into 3 departments:

351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder

Industrial business is our traditional core business, our customers mainly are the local detergent brands, producers and distributors all over the world. Our main products are detergent-use raw chemicals like Sodium Sulphate (SSA), Disilicate (MSD), Soda ash, various surfactant products (AOS, SLES, SLS, LABSA, LAS, AEO...) and etc. Among these products, the disilicate series new type phos-free STPP replacement products are our strong and featured items, our exporting quantity is more than 60% of China's total export.

Our detergent-use raw chemicals are mainly originated in China mainland, but our sources are not limited to China only. To server our customers with more detergent-use raw chemical items, more competitive price and more multiple and stable supply chains, we are developing more and more overseas suppliers to fulfil our global customers' needs.
Our target on this is to become an organizer of the global resources related to the detergent industry.

Beside the detergent-use raw chemicals, we are dedicated in promoting China originated detergent-use production lines and racking systems to our global customers too.
As our business motto said, each and every need of our detergent industry customers, is the direction we are going to work out.
For this part of business, we do free consulting and designing, the production, installation and maintenance will be fulfilled by the related factories directly.

Commercial business is our high-lighted new business department. Customers are mainly laundry shops, cleaning service contractors of public area and those factories with the special needs of equipment or products cleaning.
Based on our wide-scope detergent-use raw chemical items, stable supply chains and years of application experience, we are developing the customized cleaning products for our commercial customers according to their common requests of low price, high efficiency, safe and easy, environment friendly and etc.

The consumer business is the reason and the ultimate target for the existence of our company. We firmly believe that only the product itself can prove the value and meaning of a company, can mark and maintain the vitality of a company, can eventually fulfil a company's business purpose and social duty.
We are mainly focusing on the consumers of China mainland market. By the advantages of China's fast-growing economy and booming E-Commerce channels, Chinese detergent consumer market is enjoying a rapid developing speed. The market is showing features of more items, more specialized, more liquid items, more concentrated, greener and healthier, longer effect, more new and young brands, and shorter supply chains and etc.
Based on the features of China consumers' market, combining our company's own advantages, we confirmed 4 application scenes as our developing direction, such as laundry, kitchen, household and car-use scenes. For better development of this department, we formed Nanjing XPinhui Daily Chemical Co.,Ltd. In 2020, and built our first detergent pods factory in Henan province with Luoyang Qihang Chemical Co., Ltd., registered the brands of Yike® and Huibox®.
Beside our own products and OEM items, we are also dedicated in introducing our industrial customers' featured and cultured cleaning products into China market. Chinese consumers can reach our consumer items in most E-commerce platforms like JD, Tiktok and Taobao.


351# Optical Brightener CBS-X for Washing Powder


351# Optical Brightener CBS-X for Washing Powder

351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder
351# Optical Brightener CBS-X for Washing Powder

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