Acid Red 73 CAS 5413-75-2
| CAS No. | 5413-75-2 |
| Molecular Formula | C22H14N4O7S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Acid Red 73.
CATO supplies Acid Red 73 (CAS 5413-75-2), a certified reference material (molecular formula C22H14N4O7S2Na, MW 533.49 g/mol) for analytical method development and quality control.
Structurally, Acid Red 73 (C22H14N4O7S2Na) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 533.49 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Acid Red 73 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C22H14N4O7S2 2*Na |
| Molecular Weight | 533.49 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Recommended Standards
- 2-(Chloromethyl)-N-methylaniline hydrochloride (CAS 92333-53-4)
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- 4-(1H-Pyrazol-4-yl)but-3-yn-1-ol (CAS 175474-15-4)
- 4,4'-(Buta-1,3-diyne-1,4-diyl)dibenzonitrile (CAS 103140-39-2)
- 2-(Aminomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-acetonitrile (CAS 1804807-96-2)
- Isosakuranin (CAS 491-69-0)
- 4-[(4-Chlorophenyl)sulfanyl]-2-{[(3,4-dichlorophenyl)methyl]sulfanyl}-5-methoxypyrimidine (CAS 339276-03-8)
- 5-Chloro-3-ethyl-1-methyl-4-nitro-1h-pyrazole (CAS 13586-54-4)
- RLX (CAS 4425-23-4)
- Peptide 440 (CAS CATO-CPTD788440)
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