Fluorescent Brightener 28

荧光增白剂28

Also known as: Fluorescent Brightener 28, Calcofluor White M2R, Tinopal UNPA-GX, Optiblanc NL, C.I. Fluorescent Brightener 28, 4,4'-bis({4-anilino-6-[bis(2-hydroxyethyl)amino]-1,3,5-triazin-2-yl}amino)stilbene-2,2'-disulfonic acid

Fluorescent Brightener 28 (CAS 4404-43-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C40H44N12O10S2 and a molecular weight of 916.98200 g/mol. It is also known as Calcofluor White M2R, Tinopal UNPA-GX and Optiblanc NL. Key properties include a melting point of 290ºC and a density of 1.598 g/cm3. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4404-43-7
Jingsj CID
J-47293-5
Molecular Formula
C40H44N12O10S2
Chinese Name
荧光增白剂28
Molecular Weight
916.98200 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point290ºC
Density1.598 g/cm3

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Fluorescent Brightener 28?

The CAS number of Fluorescent Brightener 28 is 4404-43-7.

What are the molecular formula and molecular weight of Fluorescent Brightener 28?

Fluorescent Brightener 28 has molecular formula C40H44N12O10S2 and molecular weight 916.98200 g/mol.

Is Fluorescent Brightener 28 hazardous?

Fluorescent Brightener 28 has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Fluorescent Brightener 28 (CAS 4404-43-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47293-5 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.