4,5,6,7-Tetrachloro-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one CAS 6262-21-1
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 6262-21-1 |
| Molecular Formula | C20H8Cl4O5 |
| Molecular Weight | 470.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 4,5,6,7-Tetrachloro-3',6'-dihydroxy-3H-spiro[isobenzofuran-1,9'-xanthen]-3-one (CAS 6262-21-1) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C20H8Cl4O5. Molecular weight: 470.09 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C20H8Cl4O5 |
| Molecular Weight | 470.09 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
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- 1,1'-(4,4',5,5'-Tetrachloro[1,3'-bi-1H-pyrrole]-2,2'-diyl)bis[1-(2-hydroxyphenyl)methanone] (CAS 1227962-62-0)
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Recommended Standards
- Agaricoglyceride C (CAS 887478-85-5)
- Macitentan Impurity 32 (CAS 1803092-45-6)
- 2-(Difluoromethyl)-1,1,1,2,3,3,4,4,5,5,6,7,7,7-tetradecafluoro-6-(trifluoromethyl)heptane (CAS 801287-29-6)
- Benzyl 1,2-dihydrospiro[indole-3,4'-piperidine]-1'-carboxylate (CAS 167484-18-6)
- Methyl 2-[4-(2-amino-5-methylphenoxy)phenyl]-acetate (CAS 946729-13-1)
- 3-(4-Methylpiperazine-1-carbonyl)-7-oxabicyclo[2.2.1]Heptane-2-carboxylic acid (CAS 1026680-07-8)
- 1-Boc-3,3-difluoropiperidine-4-carboxylic Acid (CAS 1303972-81-7)
- 2-Methyl-6-(trifluoromethyl)isonicotinaldehyde (CAS 1288992-12-0)
- Inosine-5'-monophosphate Disodium Salt heptahydrate (CAS 849725-39-9)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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