2',7'-Dichlorofluorescein Sodium Salt CAS 80471-69-8
| CAS No. | 80471-69-8 |
| Molecular Formula | C20H8Cl2O5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C20H8Cl2O5Na, 2',7'-Dichlorofluorescein Sodium Salt contains a salt form, a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 422.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 2',7'-Dichlorofluorescein Sodium Salt (CAS 80471-69-8), a certified reference material (molecular formula C20H8Cl2O5Na, MW 422.17 g/mol) for analytical method development and quality control.
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 2',7'-Dichlorofluorescein Sodium Salt 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 | C20H8Cl2O5 2*Na |
| Molecular Weight | 422.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| 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.) | 1979 |
| Halogen Content | Cl-containing |
Related Dichlorofluorescein Standards
Recommended Standards
- 1-(4-(Methylsulfonyl)phenyl)piperidin-4-ol (CAS 166438-65-9)
- 1-Heptene (CAS 592-76-7)
- N-[(Phenylmethoxy)carbonyl]-L-norvalyl-L-leucinamide (CAS 196600-89-2)
- 3,4-Difluoro[1,1-biphenyl]-3-carbaldehyde (CAS 927801-78-3)
- Halcinonide Impurity 2 (CAS CATO-C4X-27952)
- (5-Phenyl-1H-pyrazol-3-yl)methanol (CAS 179057-19-3)
- (4,4-Difluorocyclohexyl)(imino)(methyl)-l6-sulfanone (CAS 2138233-26-6)
- 4,4-Dimethyl-2-oxotetrahydrofuran-3-carboxylic acid (CAS 412034-82-3)
- 1-(Difluoromethyl)-6-fluoronaphthalene (CAS 1261676-49-6)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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