Acid Red 87 CAS 17372-87-1
| CAS No. | 17372-87-1 |
| Molecular Formula | C20H6Br4O5 |
| 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 87.
Acid Red 87 (CAS 17372-87-1), molecular formula C20H6Br4O5Na and molecular weight 668.87 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Acid Red 87 (C20H6Br4O5Na) contains a salt form, a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution. 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 668.87 g/mol, it falls into the high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 manufactures Acid Red 87 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 | C20H6Br4O5 2*Na |
| Molecular Weight | 668.87 g/mol |
| Purity | >90% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Br-containing |
Recommended Standards
- 7,8-Dimethoxy-2-phenylquinolin-4-ol (CAS 825620-17-5)
- (5-(3,4-Difluorophenyl)pyridin-3-yl)methanol (CAS 1346691-72-2)
- 4-(Boc-amino)-1-pentanol (CAS 179412-96-5)
- Tenilsetam (CAS 86696-86-8)
- Methyl 4-bromo-1-methyl-3-(p-tolyl)-1H-pyrazole-5-carboxylate (CAS 1435804-05-9)
- 1-(3,5-Dimethoxyphenyl)piperazine (CAS 53557-93-0)
- (5-Chloro-6-(thiophen-3-yl)pyridin-3-yl)boronic acid (CAS 2225179-00-8)
- Ethyl 3-(2-chlorophenyl)-3-methyloxirane-2-carboxylate (CAS 1521504-03-9)
- N-(2-(Furan-2-yl)-2-(indolin-1-yl)ethyl)cyclohexanecarboxamide (CAS 898416-17-6)
- Semaglutide Impurity 165 (CAS CATO-C4X-2226165)
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