CAS：

16090-02-1

C.I.NO:

71

STRUCTURE:

MOLECULAR 

FORMULA:

C₄₀H₃₈N₁₂O₈S₂Na₂

SUBSTANCE

NAME：

disodium 4,4'-bis[(4-anilino-6-morpholino-1,3,5-triazin-2-yl)amino]stilbene-2,2'-disulphonate

MOLECULAR 

WEIGHT:

924.93 (As International relative Atom Mass 1997)

Max UV 

ABSORPTION 

WAVELENGHTH:

350 nm

EXCUTIVE 

STANDARD:

HG/T3675-2010

SPECIFICATION:

Item

Indices

Appearance

white or light yellow even powder

E11 (UV absorption)

≥ 370

Whitening strength

100

Color Shade

similar

Moisture content

≤ 5.0%

Content of water-insoluble impurities

≤ 0.5%

Fineness (residual content passed 

through 180μm-pore sieve)

≤ 5.0%

PROPERTY:

Optical Brightener CXT is regarded as one of the perfect agent used in 

detergent industry. Owing to introducing the morpholine group into the 

molecular, The properties such as acid and perborate resistence be improved. It can be used in the whitening of cellulose fiber, polyamide fiber and fabrics, 

showing nionic characters and has optical blue color. It has better resistence to 

chloride bleaching than VBL and 31#, the most favorable dyeing bath pH value 

is 7-10. Its sunlight fastness is 4 grade. The most advantage used in detergent 

industry is its high matching capacity, high accumulated washing whitening 

effect. So it can meet the requirments of various matching capacity in 

detergent industry.

APPLICATION:

1. Used in detergent industry, for the synthetic detergent, toilet soap and soap.
2. Used in the fabric of cotton fiber, nylon, etc, taking on excellent whitening 

effect on artificial fiber,polyamide, vinylon, also has goodwhitening effect on 

casein fiber, polyamide plastic.

PROCEDURE:

Optical brightener CXT has less solubility than VBL and 31#, it can be soluble in hot water and form about 10% solution. The solution should be used 

immediatly when it is ready and avoid sunlight. The dosage used is 0.1-0.5% in 

detergent industry and 0.1-0.3% in dyeing industry.

PACKAGE:

Packed in carton box after being packed in plastic bag first or Kraft bag. Net 

weight per carton box/craft bag is 25 kg or 20 kg

TRANSPORTATION:

Should avoid sunlight and crash.

STORAGE:

Should be stored in cool, dry and ventilate place, and storage time should not 

exceed 2 years.