2-Ethyl-3-methylmaleic Anhydride-d3 CAS 1346599-26-5
| CAS No. | 1346599-26-5 |
| Molecular Formula | - |
| Molecular Weight | 143.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to deuterium isotope labeling, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Ethyl-3-methylmaleic Anhydride-d3 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 143.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 2-Ethyl-3-methylmaleic Anhydride-d3 (CAS 1346599-26-5), a certified reference material (molecular formula C7H5D3O3, MW 143.16 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 2-Ethyl-3-methylmaleic Anhydride-d3 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 | C7H5D3O3 |
| Molecular Weight | 143.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Ethyl Standards
Recommended Standards
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- 2-(3,5-Dimethyl-1H-pyrazol-4-yl)acetic acid (CAS 32701-75-0)
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- 5,6,7,8-Tetrahydroisoquinolin-4-amine dihydrochloride (CAS 1159822-63-5)
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- 2-(2-(Piperidin-1-yl)ethoxy)aniline (CAS 857373-29-6)
- Semaglutide Impurity 122 (CAS CATO-C4X-2226122)
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