logo
Optical Brightener ER-II - Shandong Keyang Chemical Co., Ltd.
Optical Brightener ER-II

Production

Optical Brightener ER-II

Optical Brightener ER-II

Product Name: Optical Brightener ER-II / Fluorescent Brightener 199:1 Chemical Name: 2-[2-[4-[2-(4-Cyanophenyl)ethenyl]phenyl]ethenyl]benzonitrile Color Index: C.I. 199:1 CAS: 13001-38-2 Molecular Formula: C₂₄H₁₆N₂ Formula Weight: 332.40 g/mol Synonyms: Fluorescent Brightener 199:1; FBA 199:1; 1-(2-Cyanostyryl)-4-(4-cyanostyryl)benzene; 2,2′-[benzene-1,4-diyldi(E)ethene-2,1-diyl]dibenzonitrile; Optical Brightening Agent ER-II; 4,4′-(1,4-Phenylenediethene-2,1-diyl)dibenzonitrile; ER-2 Application: Polyester Fibers (PET), Acetate Fibers, Polyamide Fibers (Nylon), Polyester-Cotton Blends, Polyester-Wool Blends, Polyester-Linen Blends, PVC, PS, Synthetic Leather, Coatings & Paints

Learn more 🡥

Optical Brightener ER-II

We specialize in the research, development, production, and global supply of optical brightener, masterbatches, pigments, dyes, titanium dioxide, detergent additives, and plastic additives. Based in China and serving the world, we provide stable and reliable chemical products and customized technical support to customers in the plastics, detergents, textile, coatings and paint ink industries.

Home
Products
About Us
Contacts

Please leave us a message.

Privacy Policy

Thank you for using this website (hereinafter referred to as "we", "us" or "our"). We respect your rights and interests regarding personal information, comply with the principles of legality, legitimacy, necessity and integrity, and protect your information security. This policy describes how we process your personal information.

1. Collection of Information
Information you provide voluntarily: for example, name, mobile phone number, email address, etc., filled in during registration. Information is collected automatically, such as device model, browser type, access logs, IP address, etc., to optimize service and security.

2. Use of Information
Provide, maintain and optimize website services;
Account verification, security protection and fraud prevention;
Send necessary information such as service notifications and policy updates;
Comply with laws, regulations and relevant regulatory requirements.

3. Protection and Disclosure of Information
We use security measures such as encryption and access control to protect your information and store it only for the minimum period necessary to fulfill the task.
We will not sell or disclose personal information to third parties without your consent; we only share it if:
We obtain your explicit permission;
With third parties entrusted to provide services (subject to confidentiality obligations);
Respond to legal requests or protect legitimate interests.

4. Your Rights
You have the right to access, correct and supplement your personal information, and may submit an application to cancel your account (after cancellation, the information will be deleted or anonymized in accordance with the rules). To exercise your rights, you may contact us using the contact details provided below.

5. Policy Updates
Any changes to this policy will be notified by posting on the website. Your continued use of the services constitutes your acceptance of the revised rules.