CAS:1552-42-7
MF:C26H29N3O2
EINECS:216-293-5
Purity:97%
Other Names:Crystal violet lactone
What is of Crystal Violet Lactone with CAS 1552-42-7 ?
CAS 1552-42-7 is Crystal Violet Lactone (CVL), a crucial thermosensitive / pressure-sensitive dye. It is mainly used in thermosensitive paper and pressure-sensitive copy paper, and possesses the reversible color-changing property of being colorless to colored. Acidic / It undergoes ring-opening under heating and turns deep purple. Neutral / It closes back under cooling and becomes colorless. The reversibility is good. The color development is fast, the color intensity is high, the oil solubility is excellent, and the stability and weather resistance are also good.
Description
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Item
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Specification
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Appearance
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White to flavescent powder
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Purity, %
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≥96
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Total colorless dye, %
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≥97
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Color intensity, %
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≥97 (as compared with reference standard)
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Diarylethane insoluble substances, %
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≤0.2
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Melting point, °C
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≥175
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Volatile substances, %
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≤0.1
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Application
Crystal Violet lactone is an important functional dye for the production of pressure sensitive materials. It is a chemical intermediate , intermediates for thermal/carbonless Paper, used in medicine and biochemical research, a leuco dye.
Packing
25kgs/drum,9tons/20’container.25kgs/bag,20tons/20’container.
