Phthalic acid, bis-n-heptyl ester D4 CAS 358731-41-6
| CAS No. | 358731-41-6 |
| Molecular Formula | - |
| Molecular Weight | 366.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Phthalic acid, bis-n-heptyl ester D4 (C22H30D4O4) contains deuterium isotope labeling, a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies Phthalic acid, bis-n-heptyl ester D4 (CAS 358731-41-6), a certified reference material (molecular formula C22H30D4O4, MW 366.53 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Phthalic acid, bis-n-heptyl ester D4 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C22H30D4O4 |
| Molecular Weight | 366.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Phthalic Standards
- Phthalic Acid Bis(2-butoxyethyl) Ester (CAS 117-83-9)
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- Phthalic acid, bis-C6-C8-branched alkyl esters C7-rich (CAS 71888-89-6)
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