Pigment Red 53 CAS 2092-56-0
| CAS No. | 2092-56-0 |
| Molecular Formula | C17H12ClN2O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Pigment Red 53 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.
Pigment Red 53 (CAS 2092-56-0) is a high-purity analytical reference standard with the molecular formula C17H12ClN2O4SNa and a molecular weight of 398.79 g/mol.
Owing to a salt form, a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Pigment Red 53 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 398.79 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C17H12ClN2O4S Na |
| Molecular Weight | 398.79 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Pigment Standards
Recommended Standards
- Methyl 2-(quinoxalin-2-yloxy)benzoate (CAS 338394-68-6)
- 6-Methoxy-1-methylisoquinoline (CAS 52986-71-7)
- 3-Cyano-6-isopropyl-2-mercaptoisonicotinic acid (CAS 885523-98-8)
- 6-Methylthieno[2,3-b]pyridin-4-amine (CAS 73227-70-0)
- 3-(6-(1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)cyclopropane-1-carboxamido)-3-methylpyridin-2-yl)benzoic acid hydrochloride (CAS 1160221-26-0)
- 3-Chloro-6-methoxy-1H-indazol-5-amine (CAS 1356017-73-6)
- 1-Boc-4-hydroxy-4-(nitromethyl)piperidine (CAS 819800-93-6)
- (3,3,3-Trifluoropropyl)trimethoxysilane 3,3,3-(trifluoropropyl)trimethoxysilane 3,3,3-trifluoropropyltrimethoxysilane 429-60-7 trimethoxy(3,3,3-trifluoropropyl)silane (CAS 429-60-7)
- Glycerol-d (CAS 65615-82-9)
- Human IgE Pentapeptide HEPP (CAS 62087-72-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com