Dobutamine Impurity 45 CAS CATO-C4X-129845
| CAS No. | CATO-C4X-129845 |
| Molecular Formula | C21H28N2O4 |
| Molecular Weight | 372.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Dobutamine Impurity 45.
Dobutamine Impurity 45 (CAS CATO-C4X-129845) is a certified pharmaceutical impurity reference standard with the molecular formula C21H28N2O4 and a molecular weight of 372.46 g/mol.
Structurally, Dobutamine Impurity 45 (C21H28N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 372.46 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C21H28N2O4 |
| Molecular Weight | 372.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Dobutamine Standards
- Dobutamine Impurity 59 (CAS CATO-C4X-129859)
- Dobutamine Impurity 35 (CAS CATO-C4X-129835)
- Dobutamine Impurity 56 (CAS CATO-C4X-129856)
- Dobutamine EP Impurity C (Dobutamine USP Related compound C) (CAS 61413-44-3)
- Dobutamine Hydrochloride EP Impurity C (CAS CATO-C4X-129825)
- Dobutamine Impurity 22 (CAS CATO-C4X-129822)
- Dobutamine Impurity 8 (CAS 14165-67-4)
- Dobutamine Impurity 7 (CAS 126521-63-9)
Recommended Standards
- Omeprazole Impurity 50 (CAS CATO-C4X-125550)
- Formoterol impurity 130 (CAS CATO-C4X-1525130)
- TG-02 (CAS 937270-47-8)
- Formoterol impurity 139 (CAS CATO-C4X-1525139)
- Dipyridamole EP Impurity C (CAS 54093-92-4)
- Bupropion impurity 70 (CAS 2133460-42-9（free base）)
- Cholic Acid Impurity 72 (CAS 25480-14-2)
- 1-Bromo-3,5-dimethylcyclohexane (CAS 859180-62-4)
- 7-Methyl-1H-pyrrolo[2,3-c]pyridin-3-amine (CAS 1190314-01-2)
- 2-amino-N-[4-(2H-1,2,3-triazol-2-yl)phenyl]acetamide hydrochloride (CAS 1240527-83-6)
- Articaine Impurity C86 (CAS 2169099-30-1)
- N-(2-(Pyridin-4-yl)ethyl)-4-(1H-pyrrol-1-yl)picolinamide (CAS 1421473-67-7)
- 3-(2,3,5-Trimethylphenoxy)azetidine (CAS 1220028-56-7)
- Peptide Impurity 05 (CAS 2322924-83-2)
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