Vat Red 41 is a dye that not often used in artist paints, but it may be made into a pigment. It is described as a deep red. In some places it is listed as a Thioindigo. We encountered it as a Maya Violet hue in Turner watercolors. The pigment for MayaCrom Violet is PV58, which is likely made by a different process.
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Vat Red 41, Deep Red Solvent Dye
VR41
Pigment Description
Resources
nQualitron Chemicals (n.d. Accessed June 2025). VAT RED 41 - Thioindigo https://www.qualitron.net/vat-red-41-thioindigo. Qualitron Chemicals
Stats
Lightfastness
Unknown
Transparency
Probably Transparent
Chemical Name
Possibly a Thioindigo
C₁₆H₈O₂S₂ [source](https://www.triaimenterprise.com/product/₅₂₂-₇₅-₈?category=Dyes), C₃₂ H₁₆ N₈ Cu [source](https://www.qualitron.net/vat-red-₄₁-thioindigo)
Dry Pigments listing VR41
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