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Crystal violet lactone CAS 1552-42-7

Crystalline Violet Lactone (CVL) is an important precursor of color changing dyes with the chemical formula of C26H29N3O2, which is white to light yellow crystalline powder at room temperature. The product has unique photochromic and thermochromic properties, and can develop dark purple color under acidic conditions, and is mainly used in carbonless copy paper, thermal recording materials and anti-counterfeit ink and other fields. It has high color sensitivity (response temperature range of 30-80℃), obvious color difference (colorless to purple-red) and good reversibility, which has irreplaceable role in the information recording and anti-counterfeiting packaging industry, and it needs to be stored away from light and moisture to maintain stability.
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  • 1552-42-7

  • bosschemical

  • 1552-42-7

Crystal violet lactone Basic information
Product Name: Crystal violet lactone
CAS: 1552-42-7
MF: C26H29N3O2
MW: 415.53
EINECS: 216-293-5
Mol File: 1552-42-7.mol
Crystal violet lactone Chemical Properties
Melting point  180-183°C
Boiling point  534.12°C (rough estimate)
density  1.1424 (rough estimate)
vapor pressure  0Pa at 25℃
refractive index  1.7120 (estimate)
storage temp.  Sealed in dry,Room Temperature
pka 4.73±0.24(Predicted)
form  Powder
color  White to Light yellow
Water Solubility  <0.1 g/100 mL at 22.5 ºC
λmax 354 nm
LogP 4.95 at 25℃
CAS DataBase Reference 1552-42-7(CAS DataBase Reference)
EPA Substance Registry System Crystal violet lactone (1552-42-7)

检验项目

Item

检验指标

Standard

检验结果

Result

外观 Appearance

浅黄色至白色粉末或晶体

Light yellow to white powder or crystal

白色粉末

white powder

CVL 主含量%

96%

96.3965%

无色染料总含量%

Total colorless dye content

97%

97.2784%

显色后的颜色强度%

Intensity of the color after rendering

97%

97 3107%

溶剂油(二芳基乙烷)不溶物%   Solvent oil (diaryl ethane) insoluble

0.2

0.1806

熔点()

Melting point

175

177

可挥发组分%

Volatile component

0.1

0.0823

结论

conclusion

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Classy article

 

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