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Crystal Violet Lactone CAS 1552-42-7

Crystal Violet Lactone is a white to light yellow crystalline powder, as the core component of pressure sensitive dyes, widely used in carbonless copy paper, thermal paper and other colour changing materials.It can show colour (blue-violet) when it meets acid or specific conditions, with high sensitivity and reversibility.It needs to be kept away from light and moisture, and avoid contact with acidic substances.
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  • 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
Product Categories: Pharmaceutical intermediates;Organics;Color Former;Color Former & Related Compounds;Functional Materials;C;Stains and Dyes;Stains&Dyes, A to;john's
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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