1158-10-7 3,5-Ditpa 3,5-diiodo-4-(4-hydroxyphenoxy)hydrocinnamic acid 3,5-diiodothyropropanoic acid 3,5-diiodothyropropionic acid 3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propanoic acid 3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propionic acid CHEBI:134267 DITPA CAS 1158-10-7
| CAS No. | 1158-10-7 |
| Molecular Formula | C15H12I2O4 |
| Molecular Weight | 510.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, a hydroxyl group, an ether linkage, iodine substitution, 1158-10-7 3,5-Ditpa 3,5-diiodo-4-(4-hydroxyphenoxy)hydrocinnamic acid 3,5-diiodothyropropanoic acid 3,5-diiodothyropropionic acid 3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propanoic acid 3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propionic acid CHEBI:134267 DITPA is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 510.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
1158-10-7 3,5-Ditpa 3,5-diiodo-4-(4-hydroxyphenoxy)hydrocinnamic acid 3,5-diiodothyropropanoic acid 3,5-diiodothyropropionic acid 3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propanoic acid 3-[4-(4-hydroxyphenoxy)-3,5-diiodophenyl]propionic acid CHEBI:134267 DITPA (CAS 1158-10-7), molecular formula C15H12I2O4 and molecular weight 510.06 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 | C15H12I2O4 |
| Molecular Weight | 510.06 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | I-containing |
Recommended Standards
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