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Fluorescent Brightener KCB

Also known as: 1,4-Bis(2-benzoxazolyl)naphthalene, Optical Brightener KCB, Fluorescent Brightener 367, 1,4-Bis(benzo[d]oxazol-2-yl)naphthalene, 2,2'-(1,4-Naphthalenediyl)bis(1,3-benzoxazole), 2,2'-naphthalene-1,4-diylbis(1,3-benzoxazole), KCB, FBA 367

Fluorescent Brightener KCB (CAS 5089-22-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C24H14N2O2 and a molecular weight of 362.380 g/mol. Key properties include a melting point of 210-212°C, a boiling point of 521.9±33.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 263.1±19.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5089-22-5
Jingsj CID
J-38034-7
Molecular Formula
C24H14N2O2
Molecular Weight
362.380 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point210-212°C
Boiling Point521.9±33.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point263.1±19.4 °C
Exact Mass362.105530
PSA52.06000
LogP7.47
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.732
Additional Propertyinsoluble

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Fluorescent Brightener KCB?

The CAS number of Fluorescent Brightener KCB is 5089-22-5.

What are the molecular formula and molecular weight of Fluorescent Brightener KCB?

Fluorescent Brightener KCB has molecular formula C24H14N2O2 and molecular weight 362.380 g/mol.

What are the upstream and downstream products of Fluorescent Brightener KCB?

For Fluorescent Brightener KCB, Upstream Products: 1,4-Naphthalenedicarboxylic acid, 2-Aminophenol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Fluorescent Brightener KCB (CAS 5089-22-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38034-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.