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Product name
Crystal Violet Lactone
Alternative names
6-Dimethylamino-3,3-bis(4-dimethylaminophenyl)phthalide, CVL
Description
CVL is the un-coloured derivative of crystal violet dye that turns blue when in contact with an acidic substrate.
This leuco dye is the blue colour former in carbonless copy paper production, and is the shading component in black images..
CVL has high colour strength and is compatible with most commonly used capsule technologies and capsule solvents.
CVL develops a neutral to slightly reddish-blue shade on acidic clay and other substrates. It has has moderate light fastness on clay paper and better lightfastness with resin and zinc salicylate papers.
Application
This leuco dye is dissolved and encapsulated and used in carbonless copy paper production.
Quantity
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Package
Suitable Packaging
Availability
Imported to Order
Other information
Capsules of CVL dissolved in special solvent have been used for many years as the main colour former in carbonless copy paper.
Smiles Code CN(C)c1ccc(cc1)C2(OC(=O)c3cc(ccc23)N(C)C)c4ccc(cc4)N(C)C
Further reading & references
Below you’ll find a curated collection of references related to this product. These sources include academic research, review articles, and case studies that explore the chemistry, applications, and sustainability benefits our products. Whether you’re looking for in-depth technical details or broader insights into their real-world use, these references are a great place to start.
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Preparation of Crystal Violet Lactone Complex and Its Effect on Discoloration of Metal Surface Coating
Wenbo Li, Et Al.. October 2022. Polymers (Basel). 2022 Oct 20;14(20):4443.
https://pmc.ncbi.nlm.nih.gov/articles/PMC9607131/ -
Control of thermochromic behaviour in crystal violet lactone (CVL)/alkyl gallate/alcohol ternary mixtures
Alexander N. Bourque, Mary Anne White. 25 June 2014. Canadian Journal of Chemistry.
https://cdnsciencepub.com/doi/10.1139/cjc-2014-0251 -
Solid Phase Adsorption of Crystal Violet Lactone on Silica Nanoparticles to Probe Mechanochemical Surface Modification Adsorption of CVL on Si Nanoparticles
Kunihiro Ichimura, Akira Funabiki. July 2008. ACS Publications Volume 24, Issue 13.
https://pubs.acs.org/langd5/article-abstract/24/13/6470/1695115/Solid-Phase-Adsorption-of-Crystal-Violet-Lactone?redirectedFrom=fulltext
Product number
72CVL26
CAS Number
1552-42-7
EC Number
216-293-5
