FD&C Yellow 5 Aluminum Lake (Tartrazine Aluminum Lake)
CAS 1934-21-0 ·Formula C16H9N4Na3O9S2 ·MW 534.4 g/mol
A water-insoluble yellow lake for dispersion-based coloring of cosmetics and coated products. It is used as a cosmetic colorant, including in hair-coloring formulations.
▸Cosmetic colorant: insoluble yellow for cosmetic and personal-care formulations
▸Hair coloring: yellow colorant for hair applications
▸Dispersion coloring: lake form for oil and dispersion systems where soluble dyes would bleed
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.
FD&C Yellow 5 Aluminum Lake is the insoluble aluminum lake of FD&C Yellow 5 (tartrazine, CAS 1934-21-0), supplied as a yellow colorant. It is used as a cosmetic colorant, including in hair-coloring formulations.
Frequently Asked Questions
What is Yellow 5 aluminum lake?
FD&C Yellow 5 Aluminum Lake is the insoluble aluminum lake of FD&C Yellow 5 (tartrazine, CAS 1934-21-0), supplied as a yellow colorant. The lake form is water-insoluble, unlike the parent dye.
What is the difference between a lake and a dye?
A soluble dye dissolves and can migrate or bleed in a formulation, while a lake is the dye precipitated onto an insoluble substrate (here, alumina) so it disperses as a pigment rather than dissolving. Lakes are chosen for oil-based and dispersion systems where a soluble dye would bleed.
What is Yellow 5 aluminum lake used for?
It is used as an insoluble yellow colorant in cosmetic and personal-care formulations, including hair-coloring applications, and in oil and dispersion systems. Suitability for any specific end use is the formulator's determination.
What is the CAS number and HS code?
The parent FD&C Yellow 5 (tartrazine) is CAS 1934-21-0; the lake is classified under HS 3205.00 (color lakes). Reference these on RFQs and customs documentation.
What bulk packaging and documentation are available?
Supplied as a powder lake for industrial and personal-care coloring; request a bulk quote for available pack sizes and order quantities. An SDS and Certificate of Analysis accompany each shipment.
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.
Bulk & Specialty Sourcing
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