Specialty Additives Available — Bulk Only

Bis(triazinylamino)stilbene Disulfonate (Optical Brightener, FWA)

CAS 16090-02-1 · Formula C40H38N12Na2O8S2 · MW 924.9 g/mol

A stilbene-triazine fluorescent whitener that absorbs UV and re-emits blue light to brighten textiles, paper, and detergents. It is used predominantly in household detergents to whiten fabrics, and as a brightener and dye in the paper and textile industries.

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HS Code
3204.20
At a Glance
Material Family
Specialty Additives
Record Type
Pure compound
Primary Role
Color / Pigmentation
Solubility
In water, 5 mg/l at 25 °C
Functional Roles
Industries Served
Applications & Use Cases
  • Detergents: Optical brightener in household and heavy-duty laundry detergents.
  • Textiles: Brightening of cotton fibers and textile finishing.
  • Paper: Brightener in pulp and paper processing.
Physical Properties
Melting Point
>270 °C
Solubility
In water, 5 mg/l at 25 °C
Flash Point
not available
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
3204 . 20
Chapter 32
Tanning or dyeing extracts; pigments; paints and varnishes
Heading 32.04
Internationally harmonized (WCO HS)
Subheading 3204.20
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
16090-02-1
Molecular Formula
C40H38N12Na2O8S2
Molecular Weight
924.9 g/mol
IUPAC Name
disodium;5-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-[2-[4-[(4-anilino-6-morpholin-4-yl-1,3,5-triazin-2-yl)amino]-2-sulfonatophenyl]ethenyl]benzenesulfonate
PubChem CID
InChI Key
VUJGKADZTYCLIL-UHFFFAOYSA-L
Synonyms & Trade Names
MSK000269-100W Fluorescent brightener 71 Solution in Water, 100ug/mL
Full Description

This disodium bis(triazinylamino)stilbene disulfonate (CAS 16090-02-1) is a stilbene-type fluorescent whitening agent. It is used predominantly in household detergents to whiten fabrics, and as a brightener and dye in the paper and textile industries. The molecule fluoresces under UV light to offset yellowing.

Frequently Asked Questions

What is this bis(triazinylamino)stilbene disulfonic derivative used for?

This disodium bis(triazinylamino)stilbene disulfonate (CAS 16090-02-1) is a stilbene-type fluorescent whitening agent. It is used predominantly as an optical brightener in household and heavy-duty laundry detergents, and as a brightener in the textile and paper industries.

How does an optical brightener like this work?

The molecule absorbs UV light and re-emits it as visible blue fluorescence, which offsets the natural yellowing of fabrics and fibers so they appear whiter. This is the basis for its use in detergents, cotton finishing, and pulp and paper.

What is the CAS number and HS classification for this brightener?

It is CAS 16090-02-1, molecular formula C40H38N12Na2O8S2. It classifies under HS 3204.20 (synthetic organic fluorescent brightening agents); we confirm the destination-specific code on the quote.

How is this optical brightener supplied in bulk and what is the MOQ?

We supply this stilbene brightener in bulk industrial packaging for detergent, textile, and paper manufacturers. Packaging, available form, and MOQ are confirmed per order; request a bulk quote with your target volume.

Can you provide a CoA and SDS for this fluorescent whitening agent?

Yes. A Certificate of Analysis and Safety Data Sheet are available with each shipment. Specify your application (detergent, textile, or paper) when requesting documentation so we route the appropriate grade.

Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.