Naphthol AS-BI Phosphate Disodium Salt CAS 530-79-0
| CAS No. | 530-79-0 |
| Molecular Formula | C18H13BrNO6P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Naphthol AS-BI Phosphate Disodium Salt (CAS 530-79-0), molecular formula C18H13BrNO6PNa and molecular weight 473.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Naphthol AS-BI Phosphate Disodium Salt (C18H13BrNO6PNa) contains a salt form, a flavonoid core, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.5, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 473.17 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 Naphthol AS-BI Phosphate Disodium 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 | C18H13BrNO6P 2*Na |
| Molecular Weight | 473.17 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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) | 12.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Naphthol Standards
- Naphthol AS-GR phosphate disodium salt (CAS 100929-51-9)
- 4-Methyl-1-naphthol (CAS 10240-08-1)
- Naphthol AS Nonanoate (CAS 10523-82-7)
- 1-Methyl-2-naphthol (CAS 1076-26-2)
- 2-Naphthol-6,8-Disulfonic Acid (CAS 118-32-1)
- Naphthol AS-BI (CAS 1237-75-8)
- 1-Naphthol-D7 (CAS 124251-84-9)
- 1,1′-Di-2-naphthol bis(trifluoromethanesulfonate) (CAS 128575-34-8)
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- 7-Bromoimidazo[1,2-a]pyridin-2(3H)-one (CAS 507224-75-1)
- Indanofan (CAS 133220-30-1)
- Tau Peptide (275-305) (Repeat 2 Domain) trifluoroacetate salt (CAS 330456-25-2)
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