Fluorescent Brightener 199 Optical Brighening Agent Er-I

• Customization: Available
• CAS No.: 13001-39-3
• Formula: C24h16n2
• Model NO.: ER
• EINECS: 235-836-7
• Environmental Protection: Yes
• Color: Yellow-Greenlight Yellow or Milk White
• Kind: Fluorescernt Brighening Agent
• Appearance: Powder
• H.S.Code: 32042000
• Transport Package: 25kgs Drum
• Specification: 99%
• Trademark: AFINE
• Origin: China
• HS Code: 3204200000

Product Description

Optical Brightener ER-I

Chemical name: 1.4-Bis-o-cyanostyryl-benzene
Structure:
 

Formula: C₂₄H₁₆N₂

Molecular Weight: 332
C.I.Number: 199

Appearance: Greenish yellow crystalline powder
Melting Point: 230±2  ºC
Purity: 99.0%
Application: Mainly be used as whitening agent for polyester fiber, as well raw material of making paste form brightening agent in textile dyeing.
Property: With strong fluorescence,  high whitening performance and excellent fastness to sublimation.


CERTIFICATE OF ANALYSIS

 

Item	Spec.	Result
Appearance	Yellow-green crystalline powder	Yellow-green crystalline powder
Purity	≥99%	99.67%
Moisture	≤1%	0.29%