| CAS Number | 1552-42-7 |
|---|---|
| Molecular Formula | C26H29N3O2 |
| Molecular Weight | 415.537 |
| InChI Key | IPAJDLMMTVZVPP-UHFFFAOYSA-N |
| LogP | 4.24 |
| Synonyms |
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Applications:
HPLC Method for Analysis of Pararosaniline, Crystal Violet, and Crystal Violet Lactone on Primesep 100 Column
December 7, 2022
High Performance Liquid Chromatography (HPLC) Method for Analysis of Crystal Violet, Crystal Violet Lactone, Pararosaniline Hydrochloride on Primesep 100 by SIELC Technologies.

Pararosaniline (Basic Red 9) is a popular basic magenta dye and part of the triarylmethane family of dyes with the chemical formula C19H17N3. It is a free base version of pararosaniline hydrochloride. Primarily, it is used to dye synthetic materials, to detect sulfur dioxide, and as an antischistosomal. You can find detailed UV spectra of Pararosaniline and information about its various lambda maxima by visiting the following link.
Crystal Violet (Methyl Violet 10B), another basic triarylmethane dye, has the C25H30ClN3. It is frequently used for histological stains and for identifying Gram-positive bacteria. It is said to have antibacterial, antifungal, and anthelmintic properties. It is a common component of navy blue and black inks in printing, inkjet printers, and ball-point pens. You can find detailed UV spectra of Crystal Violet and information about its various lambda maxima by visiting the following link.
Crystal Violet Lactone, a derivative of Crystal Violet, is a basic thermochromic dye with the chemical formula C26H29N3O2. It is widely used as a security marker for various types of fuels as well as carbonless copy papers. It is a slightly yellow crystalline powder that is soluble in nonpolar organic solvents.
These three basic dyes can be separated, retained, and analyzed on a Primesep 100 mixed-mode stationary phase column using an isocratic analytical method with a simple mobile phase of water, Acetonitrile (MeCN), and a sulfuric acid (H2SO4) buffer. This analysis method can be detected in the UV-Vis regime at 540, 590, and 200 nm.
Condition
| Column | Primesep 100, 4.6 x 150 mm, 5 µm, 100 A, dual ended |
| Mobile Phase | MeCN/H2O – 80/20% |
| Buffer | H3PO4 – 0.2% |
| Flow Rate | 1.0 ml/min |
| Detection | UV, 540, 590, 200 nm |
| Peak Retention Time | 3.15, 7.24, 8,82 min |
Description
| Class of Compounds | Dyes |
| Analyzing Compounds | Crystal Violet, Crystal Violet Lactone, Pararosaniline Hydrochloride |
Application Column
Primesep 100
Column Diameter: 4.6 mm
Column Length: 150 mm
Particle Size: 5 µm
Pore Size: 100 A
Column options: dual ended
Crystal Violet Lactone
Pararosaniline Hydrochloride
HPLC Separation of Dyes
November 21, 2010
| Column | Newcrom B, 3.2×50 mm, 3 µm, 100A |
| Mobile Phase | MeCN/H2O – 30/70% |
| Buffer | H3PO4 – 0.2% |
| Flow Rate | 0.5 ml/min |
| Detection | UV, 275 nm |

Various dyes are widely used in food, textile, and pharmaceutical industries. Dies are aromatic compounds containing ionizable groups. Methylene blue, crystal violet lactone, and crystal violet were separated on a Primesep D HPLC column. Method can be used for separation of other dyes and pigments that are basic and hydrophobic in nature.
| Column | Primesep D, 4.6×50 mm, 3 µm, 100A |
| Mobile Phase | MeCN |
| Buffer | H3PO4 – 0.2% |
| Flow Rate | 0.5 ml/min |
| Detection | UV, 300 nm |
| Class of Compounds |
Dye, Hydrophilic, Ionizable |
| Analyzing Compounds | Methylene Blue, Crystal violet lactone, Crystal violet |
Application Column
Newcrom B
The Newcrom columns are a family of reverse-phase-based columns. Newcrom A, AH, B, and BH are all mixed-mode columns with either positive or negative ion-pairing groups attached to either short (25 Å) or long (100 Å) ligand chains. Newcrom R1 is a special reverse-phase column with low silanol activity.
Select optionsPrimesep D
The Primesep family of mixed-mode columns offers a wide variety of stationary phases, boasting unprecedented selectivity in the separation of a broad array of chemical compounds across multiple applications. Corresponding Primesep guard columns, available with all stationary phases, do not require holders. SIELC provides a method development service available to all customers. Inquire about our specially-tailored custom LC-phases for specific separations.
Select optionsCrystal Violet Lactone
Methylene Blue




