1-Hydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid CAS 56670-83-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 56670-83-8 |
| Molecular Formula | C14H8O6S |
| Molecular Weight | 304.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
1-Hydroxy-9,10-dioxo-9,10-dihydroanthracene-2-sulfonic acid (CAS 56670-83-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H8O6S. Molecular weight: 304.27 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H8O6S |
| Molecular Weight | 304.27 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Sulfur Atoms | 1 |
Related Hydroxy Standards
- 3-Hydroxy-7,9-dimethoxy-3-methyl-3,4-dihydro-1H-benzo[g]isochromene-5,10-dione (CAS 36379-67-6)
- 3-(3-Hydroxy-4-methoxyphenyl)-1-(2,4,6-trihydroxyphenyl)propan-1-one (CAS 35400-60-3)
- 4-Hydroxy-6-(4-methoxyphenyl)-2-(2-pyridinyl)-5-pyrimidinecarbonitrile (CAS 320418-61-9)
- 5-[(4-Hydroxy-3-methoxy-5-methylphenyl)methylene]-1,3-dimethyl-2,4,6(1H,3H,5H)-pyrimidinetrione (CAS 860644-62-8)
- 7-Hydroxy-3-(1-phenyl-1H-pyrazol-4-yl)-4H-1-benzopyran-4-one (CAS 61034-11-5)
- 6-(4-Hydroxy-3-methyl-1H-pyrazol-1-yl)naphthalene-2-sulfonic acid (CAS 6357-97-7)
- Methyl 4-hydroxy-8-isopropyl-6,7-dimethoxy-2-naphthoate (CAS 1415564-88-3)
- 2-Hydroxy-6-(2-naphthalen-1-yl-vinyl)-benzoic acid methyl ester (CAS 365542-22-9)
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 13829788188 / jacky.chen@cato-chem.com