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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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Model:
1552-42-7
Brand:
bosschemical
Code:
1552-42-7

Product Description

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	优等品 Classy article