Naphthol AS-BI Sulphate Potassium Salt CAS 1680-70-2
| CAS No. | 1680-70-2 |
| Molecular Formula | C18H12BrNO6S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Naphthol AS-BI Sulphate Potassium 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.
Naphthol AS-BI Sulphate Potassium Salt (CAS 1680-70-2) is a high-purity analytical reference standard with the molecular formula C18H12BrNO6SK and a molecular weight of 489.36 g/mol.
Naphthol AS-BI Sulphate Potassium Salt (C18H12BrNO6SK) contains a salt form, a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C18H12BrNO6S 2*K |
| Molecular Weight | 489.36 g/mol |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur 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)
Recommended Standards
- 40210-84-2 7,7,8,8-Tetracyanoquinodimethane Tetrathiafulvalene salt TCNQ-TTF TTF-TCNQ Tetrathiafulvalene 7,7,8,8-tetracyanoquinodimethane salt (CAS 40210-84-2)
- 3-Fluorocyclobutane-1-carbonitrile (CAS 1552638-51-3)
- Methyl 6-(1-hydroxyethyl)nicotinate (CAS 944133-93-1)
- YZ9 (CAS 6093-71-6)
- N-(2,4-Difluorophenyl)-N-(2-pyridinylmethyl)urea (CAS 706771-04-2)
- 1-(5-iodanylthiophen-2-yl)ethanone 1-(5-iodo-2-thiophenyl)ethanone 30955-94-3 A820665 (CAS 30955-94-3)
- [1,1'-Biphenyl]-4-yl(2-(4-chlorophenyl)thiazol-5-yl)methanone (CAS 339008-20-7)
- 2-Chloro-3,4,5,6-tetrafluorobenzene-1-sulfonyl chloride (CAS 2763570-72-3)
- 4-Acetyl-1-methylpiperazin-2-one (CAS 1343154-66-4)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
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