Diatrizoic Acid Impurity 2 CAS 1622427-84-2
| CAS No. | 1622427-84-2 |
| Molecular Formula | C7H7IN2O2 |
| Molecular Weight | 278.05 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Diatrizoic Acid Impurity 2 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.
Diatrizoic Acid Impurity 2 (CAS 1622427-84-2) is a certified pharmaceutical impurity reference standard with the molecular formula C7H7IN2O2 and a molecular weight of 278.05 g/mol.
Diatrizoic Acid Impurity 2 (C7H7IN2O2) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C7H7IN2O2 |
| Molecular Weight | 278.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Diatrizoic Standards
Recommended Standards
- N-(4,5-Dichloro-2-Nitrophenyl)-N-Nitrosoacetamide (CAS 15862-04-1)
- methyl 3-(4-bromo-3-nitro-1H-pyrazol-1-yl)propanoate (CAS 1006994-38-2)
- 1-IODO-4-(TRIFLUOROMETHYL)BENZENE 4-(TRIFLUOROMETHYL)IODOBENZENE 4-IODO-1-TRIFLUOROMETHYLBENZENE 4-IODO-ALPHA,ALPHA,ALPHA-TRIFLUOROTOLUENE 4-IODOBENZOTRIFLUORIDE 4-IODOBENZTRIFLUORIDE 455-13-0 ALPHA,ALPHA,ALPHA-TRIFLUORO-4-IODOTOLUENE P-IODOBENZOTRIFLUORIDE P-IODOTRIFLUOROTOLUENE PF10119 (CAS 455-13-0)
- 3-Bromo-N-(2,2-difluoroethyl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 1171920-98-1)
- Olaparib Impurity 159 (CAS CATO-C4X-1135159)
- Eicosapentaenoic Acid impurity 51 (CAS CATO-C4X-289051)
- Riociguat Impurity 11 (CAS CATO-C4X-174911)
- 6-Chloro-9-methyl-8-(trifluoromethyl)-9H-purine (CAS 1365607-17-5)
- n1-(Pyrimidin-2-yl)ethane-1,2-diamine hydrochloride (CAS 38642-80-7)
- 6-Isobutyl-2-methylpyrimidin-4-amine (CAS 1483766-67-1)
- 3-Bromo-N-(3-methoxybenzyl)-N-methylpyridin-2-amine (CAS 1304966-23-1)
- 3-Chloro-1-methyl-1h-indole-2-carboxylic acid (CAS 1043420-84-3)
- Methyl 2-(3,4-dimethoxyphenyl)-2-oxoacetate (CAS 38209-58-4)
- Semaglutide impurity 289 (CAS CATO-C4X-2226289)
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