Phenolphthalein disulfate potassium salt hydrate CAS 62625-16-5
| CAS No. | 62625-16-5 |
| Molecular Formula | C20H13O11S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Phenolphthalein disulfate potassium salt hydrate (CAS 62625-16-5) is a high-purity analytical reference standard with the molecular formula C20H13O11S2KH2O and a molecular weight of 550.55 g/mol.
The molecular framework of Phenolphthalein disulfate potassium salt hydrate (C20H13O11S2KH2O) is characterized by a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Phenolphthalein disulfate potassium salt hydrate 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 | C20H13O11S2 3*K H2O |
| Molecular Weight | 550.55 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 |
| Degree of Unsaturation (DBE) | 13.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Sulfur Atoms | 2 |
Related Phenolphthalein Standards
- Phenolphthalein monophosphate (dicyclohexylammonium) (CAS 14815-59-9)
- Phenolphthalein β-D-Glucuronide (CAS 15265-26-6)
- Phenolphthalein complex indicator (CAS 25296-54-2)
- Phenolphthalein Disodium Salt (CAS 518-51-4)
- Phenolphthalein anilide (CAS 6607-41-6)
- Phenolphthalein 4′-O-β-D-glucuronide, sodium salt (CAS 6820-54-8)
- 68807-90-9 Phenolphthalein diphosphate tetrasodium salt sodium 4,4'-(3-oxo-1,3-dihydroisobenzofuran-1,1-diyl)bis(4,1-phenylene) diphosphate (CAS 68807-90-9)
- Phenolphthalein (CAS 77-09-8)
Recommended Standards
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- (R)-2-Benzylpyrrolidine (CAS 63328-13-2)
- (S)-tert-Butyl (1-hydroxy-4-(methylthio)butan-2-yl)carbamate (CAS 51372-93-1)
- 1-((Benzyloxy)carbonyl)-5-(tert-butoxycarbonyl)octahydropyrrolo[3,4-b]pyrrole-6a-carboxylic acid (CAS 1445951-82-5)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
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