(S)-2,2',3,3'-Tetrahydro-6,6'-diiodo-7,7'-bis(methoxymethoxy)-1,1'-spirobi[1H-indene] CAS 1258276-29-7
| CAS No. | 1258276-29-7 |
| Molecular Formula | C21H22I2O4 |
| Molecular Weight | 592.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (S)-2,2',3,3'-Tetrahydro-6,6'-diiodo-7,7'-bis(methoxymethoxy)-1,1'-spirobi[1H-indene] (C21H22I2O4) contains a flavonoid core, a hydroxyl group, an ether linkage, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 592.21 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
(S)-2,2',3,3'-Tetrahydro-6,6'-diiodo-7,7'-bis(methoxymethoxy)-1,1'-spirobi[1H-indene] (CAS 1258276-29-7), molecular formula C21H22I2O4 and molecular weight 592.21 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H22I2O4 |
| Molecular Weight | 592.21 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | I-containing |
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Recommended Standards
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- SAR107375E Impurity 14 d8 (CAS CATO-C4X-229914)
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- 4-((tert-Butoxycarbonyl)amino)but-2-enoic acid (CAS 89711-09-1)
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