Isosorbide Dinitrate 19 CAS 1932354-37-4
| CAS No. | 1932354-37-4 |
| Molecular Formula | C6H9NO5 |
| Molecular Weight | 175.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Isosorbide Dinitrate 19 is closely related to a carbohydrate-derived structure, an amide group in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Isosorbide Dinitrate 19 (CAS 1932354-37-4) is a certified pharmaceutical impurity reference standard with the molecular formula C6H9NO5 and a molecular weight of 175.14 g/mol.
Structurally, Isosorbide Dinitrate 19 (C6H9NO5) contains a carbohydrate-derived structure, an amide group. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 175.14 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
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 | C6H9NO5 |
| Molecular Weight | 175.14 g/mol |
| Appearance | White to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 1 |
Related Isosorbide Standards
- Isosorbide Dinitrate Impurity 20 (CAS 175220-76-5)
- Isosorbide Dimethyl Ether (CAS 5306-85-4)
- Isosorbide Impurity 21 (CAS 28218-55-5)
- Isosorbide Impurity 23 (CAS 45895-44-1)
- Isosorbide Impurity 24 (CAS 52485-66-2)
- Isosorbide Dinitrate Impurity 5 (CAS 13042-39-2)
- Isosorbide Dinitrate Impurity 6 (CAS 65940-93-4)
- Isosorbide Dinitrate Impurity 10 (CAS CATO-C4X-223810)
Recommended Standards
- Azacitidine Impurity 77 (CAS 2508-81-8)
- 3-Methyl-isatoic anhydride 3-methylisatoic anhydride 66176-17-8 8-methyl-1-h-benzo[d][1,3]oxazine-2,4-dione 8-methyl-1h-benzo[d][1,3]oxazine-2,4-dione (CAS 66176-17-8)
- N-Acetyl-L-Aspartic Acid (CAS 997-55-7)
- 6133-30-8 Guanidinosuccinic acid Aspartic acid, N-amidino- (7CI) Aspartic acid, N-amidino-, L- (8CI) L-Aspartic acid, N-(aminoiminomethyl)- L-N-Amidinoaspartic acid N-(Aminoiminomethyl)-L-aspartic acid BRN 2098683 NSC 49078 (CAS 6133-30-8)
- Elagolix Impurity 88 (CAS CATO-C4X-206888)
- Diclofenac Ethyl Ester (Aceclofenac EP Impurity C) (CAS 15307-77-4)
- Edoxaban Impurity 27 (CAS CATO-C4X-106327)
- 4-Methyl-4-nitroheptanedioic acid (CAS 5437-39-8)
- 4-(4-Chloro-7-(methylsulfonyl)-6,7-dihydro-5H-pyrrolo[2,3-d]pyrimidin-2-yl)morpholine (CAS 1178564-27-6)
- 2-(Difluoromethyl)-6-fluoro-4-(trifluoromethyl)pyridine-3-carboxylic acid (CAS 1804855-29-5)
- 1-(4-Bromo-3-fluorobenzyl)-4-ethylpiperazine (CAS 1704120-81-9)
- 2-Amino-1-(4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)ethan-1-one (CAS 735253-99-3)
- (2S)-2-(chloromethyl)pyrrolidine;hydrochloride (CAS 35120-33-3)
- Semaglutide impurity 26 (CAS CATO-C4X-222626)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com