Pigment Red 64 CAS 6371-76-2
| CAS No. | 6371-76-2 |
| Molecular Formula | 2*C17H11N2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Pigment Red 64 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.
CATO supplies Pigment Red 64 (CAS 6371-76-2), a certified reference material (molecular formula C17H11N2O3Ca, MW 331.36 g/mol) for analytical method development and quality control.
Pigment Red 64 (C17H11N2O3Ca) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | 2*C17H11N2O3 Ca |
| Molecular Weight | 331.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Pigment Standards
Recommended Standards
- 2-(1,3-Dioxolan-2-yl)-1-(2-(trifluoromethyl)phenyl)ethan-1-one (CAS 1263365-56-5)
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- 2-Chloro-4-(3-methyl-1,2,4-oxadiazol-5-yl)pyridine (CAS 959240-51-8)
- 1-(4-Chlorophenyl)cyclohexane-1-carbonitrile (CAS 64399-28-6)
- (-)-Menthol (CAS 2216-51-5)
- 4-(4-Chlorophenyl)-1H-pyrrole-2-carboxylic acid (CAS 79600-86-5)
- DL-2-Hydroxy-4-(methylthio)butanoic Acid-13C4DISCONTINUED, see H555660 (CAS 1215556-82-3)
- Butoxy-d9-acetic Acid (CAS 669720-55-2)
- N-Sec-Butyl-3,4-dimethylaniline (CAS 56038-90-5)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com