Minoxidil Impurity 67 CAS CATO-C4X-170067
| CAS No. | CATO-C4X-170067 |
| Molecular Formula | C6H10N4O2 |
| Molecular Weight | 170.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Minoxidil Impurity 67 is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Minoxidil Impurity 67 (CAS CATO-C4X-170067) is a certified pharmaceutical impurity reference standard with the molecular formula C6H10N4O2 and a molecular weight of 170.17 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Minoxidil Impurity 67 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 170.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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.
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 | C6H10N4O2 |
| Molecular Weight | 170.17 g/mol |
| Appearance | Off-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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Minoxidil Standards
- Minoxidil Impurity 21 (CAS 128304-91-6)
- Minoxidil Impurity 53 (CAS CATO-C4X-170053)
- Minoxidil Impurity 59 (CAS CATO-C4X-170059)
- Minoxidil Impurity 68 (CAS CATO-C4X-170068)
- Minoxidil Impurity 22 (CAS 56488-00-7)
- Minoxidil Impurity 66 (CAS CATO-C4X-170066)
- Minoxidil Impurity 70 (CAS CATO-C4X-170070)
- Minoxidil EP Impurity A (CAS 35139-67-4)
Recommended Standards
- Riociguat Impurity N13 (CAS 6017-21-6)
- Hydralazine Impurity 1 (CAS 234-80-0)
- N-Nitroso Guvacoline (CAS 55557-02-3)
- Fluorouracil Impurity 27 (CAS 2566704-13-8)
- Carbetocin Impurity 15 (CAS CATO-C4X-191115)
- Apixaban Impurity 128 (CAS CATO-C4X-1088128)
- Fenofibrate Impurity 34 (CAS 258834-37-6)
- Ethyl 5-amino-1-(pyridin-4-yl)-1H-pyrazole-4-carboxylate (CAS 38965-48-9)
- 2-(4-Fluorophenyl)morpholine oxalate (CAS 1198416-85-1)
- 6-(2-(4-(4-Fluorobenzoyl)piperidin-1-yl)ethyl)-7-methyl-2H-thiazolo[3,2-a]pyrimidin-5(3H)-one (CAS 86487-64-1)
- (4-(Dimethylamino)phenyl)(p-tolyl)methanol (CAS 93026-72-3)
- 1-(Methoxymethyl)cyclopropanecarboxylic Acid (CAS 67567-55-9)
- (trimethoxymethyl)cyclobutane (CAS 1494255-38-7)
- Allo-D-Ile12-Tirzepatide (CAS CATO-CPTD788963)
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