Pigment Violet 19 CAS 1047-16-1
| CAS No. | 1047-16-1 |
| Molecular Formula | C20H12N2O2 |
| Molecular Weight | 312.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO supplies Pigment Violet 19 (CAS 1047-16-1), a certified reference material (molecular formula C20H12N2O2, MW 312.32 g/mol) for analytical method development and quality control.
Structurally, Pigment Violet 19 (C20H12N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 312.32 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Pigment Violet 19 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C20H12N2O2 |
| Molecular Weight | 312.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Pigment Standards
Recommended Standards
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- H-His-AMC (CAS 191723-64-5)
- 5-((6-(2-(Aminomethyl)morpholino)pyrimidin-4-yl)amino)pyrazine-2-carbonitrile (CAS 1137475-15-0)
- tert-Butyl 2-(2-hydroxyethyl)-3-methoxyphenylcarbamate (CAS 327183-29-9)
- 6-(Benzylthio)pyridine-3-sulfonic acid (CAS 887577-89-1)
- 6-Amino-4-(bromomethyl)-5-(difluoromethyl)nicotinic acid (CAS 1806017-55-9)
- 8-Methylquinoline-2,3-dicarboxylic acid (CAS 892874-73-6)
- 5-Nitro-6-phenylpyridin-2-amine (CAS 912772-97-5)
- Methyl 6-oxohexahydropyridazine-4-carboxylate (CAS 153895-80-8)
- 5-(3-(Trifluoromethoxy)phenyl)pyridin-3-amine (CAS 1258626-19-5)
- N-(3-cyano-5-phenylfuran-2-yl)benzamide (CAS 98061-62-2)
- 1-(5-Ethylfuran-2-yl)-2,2-dimethylpropan-1-amine (CAS 1306607-08-8)
- D-[Ser]8-Semaglutide (CAS CATO-C4X-2226207)
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