BIU7Q7W2SH 4159-77-7 Rose bengal lactone Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo- 4,5,6,7-Tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro(isobenzofuran-1(3H),9'-(9H)xanthene)-3-one EINECS 223-993-4 C.I. Solvent Red 141 C.I.45440:1 Solvent Red 141 UNII-BIU7Q7W2SH CAS 4159-77-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 4159-77-7 |
| Molecular Formula | C20H22Cl4I4O5 |
| Molecular Weight | 991.82 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
BIU7Q7W2SH 4159-77-7 Rose bengal lactone Spiro(isobenzofuran-1(3H),9'-(9H)xanthen)-3-one, 4,5,6,7-tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodo- 4,5,6,7-Tetrachloro-3',6'-dihydroxy-2',4',5',7'-tetraiodospiro(isobenzofuran-1(3H),9'-(9H)xanthene)-3-one EINECS 223-993-4 C.I. Solvent Red 141 C.I.45440:1 Solvent Red 141 UNII-BIU7Q7W2SH (CAS 4159-77-7) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C20H22Cl4I4O5. Molecular weight: 991.82 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C20H22Cl4I4O5 |
| Molecular Weight | 991.82 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl/I-containing |
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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