Isosorbide Dinitrate Impurity 7 CAS 13042-38-1
| CAS No. | 13042-38-1 |
| Molecular Formula | C10H14O6 |
| Molecular Weight | 230.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Isosorbide Dinitrate Impurity 7 (CAS 13042-38-1) is a certified pharmaceutical impurity reference standard with the molecular formula C10H14O6 and a molecular weight of 230.21 g/mol.
Structurally, Isosorbide Dinitrate Impurity 7 (C10H14O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 230.21 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Isosorbide Dinitrate Impurity 7 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 | C10H14O6 |
| Molecular Weight | 230.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >90% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1960 |
Related Isosorbide Standards
- Isosorbide Dinitrate Impurity 26 (CAS CATO-C4X-223826)
- Isosorbide Dinitrate Impurity 4 (CAS 39813-48-4)
- Isosorbide Dinitrate Impurity 8 (CAS 39698-15-2)
- Isosorbide Dinitrate Impurity 15 (CAS 551-43-9)
- Isosorbide Dinitrate Impurity 27 (CAS 575-86-0)
- Isosorbide Dinitrate (CAS 87-33-2)
- Isosorbide-13C6 Dinitrate (CAS 1246815-45-1)
- Isosorbide-13C6 DiNitrate (CAS 1391051-97-0)
Recommended Standards
- 20882-04-6 (2-((2-Methyl-1-oxoallyl)oxy)ethyl) hydrogen succinate Butanedioic acid, 1-(2-((2-methyl-1-oxo-2-propen-1-yl)oxy)ethyl) ester Butanedioic acid, mono(2-((2-methyl-1-oxo-2-propenyl)oxy)ethyl) ester EINECS 244-096-4 (CAS 20882-04-6)
- N'-(Furan-2-ylmethylene)-4-hydroxybenzohydrazide (CAS 100136-52-5)
- methyl 3-(2,2-dimethyl-4,6-dioxo-1,3-dioxan-5-yl)propanoate (CAS 62054-77-7)
- 3-(2,3-dihydro-1,4-benzodioxin-6-yl)-1H-pyrazole-4-carbaldehyde (CAS 1006482-46-7)
- Kojic Impurity N1 (CAS 644-46-2)
- Sitafloxacin impurity 57 (CAS CATO-C4X-115557)
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- 4-[(Pyridin-2-yl)methyl]piperidin-4-ol hydrochloride (CAS 1246633-40-8)
- 3-Bromo-5,6-dihydro-4H-pyrrolo[1,2-b]pyrazole-2-carbonitrile (CAS 2091865-86-8)
- 5-Ethynylindole (CAS 889108-48-9)
- 5-Amino-4-methylpyridin-2-ol (CAS 946826-32-0)
- N-(2-(5-Cyclopropyl-3-(thiophen-2-yl)-1H-pyrazol-1-yl)ethyl)thiophene-2-carboxamide (CAS 1797293-94-7)
- 3-(tert-Butyl)-5-cyclopropoxy-4-nitropyridine (CAS 1243355-64-7)
- Des-Tyr10-Tirzepatide (CAS CATO-CPTD788680)
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