Gadobutrol Impurity 37 CAS CATO-C4X-2120137
| CAS No. | CATO-C4X-2120137 |
| Molecular Formula | C17H30N4O7 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Gadobutrol Impurity 37 (CAS CATO-C4X-2120137) is a certified pharmaceutical impurity reference standard with the molecular formula C17H30N4O7Cl and a molecular weight of 437.90 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Gadobutrol Impurity 37 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 437.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C17H30N4O7 Cl |
| Molecular Weight | 437.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Gadobutrol Standards
- Gadobutrol Impurity 112 (CAS 1003-83-4)
- Gadobutrol Impurity 12 4HCl (CAS 10045-25-7)
- Gadobutrol Impurity 79 (CAS 105855-71-8)
- Gadobutrol Impurity 115 (CAS 112-24-3)
- Gadobutrol EP Impurity C (Gadoteridol USP Related Compound B) (CAS 112188-16-6)
- Gadobutrol Impurity N5 (CAS 112193-75-6)
- Gadobutrol Impurity 104 4HCl (CAS 112193-75-6（free base）)
- Gadobutrol Impurity 37 (Cyclen Disulfate) (CAS 112193-77-8)
Recommended Standards
- Eltrombopag Impurity 7 (CAS 1428987-69-2)
- Ezetimibe Impurity 7 (CAS CATO-C4X-10987)
- Istradefylline Impurity 16 (CAS CATO-C4X-106116)
- (R)-1-Acetyl-3-hydroxypyrrolidine (CAS 916733-17-0)
- 5-(Hydrazonomethyl)-2-methylpyrimidin-4-amine (CAS 766471-45-8)
- 2-(4-(Difluoromethoxy)-2,5-difluorophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1628442-67-0)
- ((2S,4S)-2-methylpiperidin-4-yl)methanol hydrochloride (CAS 1807939-86-1)
- N-(2,3,4,5-Tetrafluorophenyl)acetamide (CAS 16582-88-0)
- 3-(Pyridin-3-yl)acrylonitrile (CAS 54356-27-3)
- Semaglutide Impurity 3 (CAS CATO-C4X-22263)
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