Dopamine impurity 120 CAS 3490-09-3
| CAS No. | 3490-09-3 |
| Molecular Formula | C11H17NO2 |
| Molecular Weight | 195.26 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 Dopamine impurity 120.
As a process- or degradation-related impurity, Dopamine impurity 120 (CAS 3490-09-3, C11H17NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Dopamine impurity 120 (C11H17NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 195.26 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
CATO manufactures Dopamine impurity 120 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H17NO2 |
| Molecular Weight | 195.26 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 18 (CAS 5663-56-9)
- Dopamine Impurity 63 (CAS 5663-55-8)
- Dopamine Impurity 11 (CAS 22568-51-0)
- Dopamine Impurity 2 (CAS 39816-35-8)
- Dopamine Impurity 105 (CAS CATO-C4X-1908105)
- Dopamine Impurity 30 (CAS 339186-39-9)
- Dopamine Impurity 70 (CAS 528594-30-1)
- Dopamine Impurity 59 (CAS 6924-15-8)
Recommended Standards
- Verapamil EP Impurity B (CAS 3490-06-0)
- Mexiletine Impurity 4 (CAS 57204-78-1)
- Mirtazapine Impurity 27 (CAS 85141-93-1)
- Metaraminol Impurity 80 (CAS CATO-C4X-225280)
- Dabigatran Impurity 132 (CAS CATO-C4X-1089132)
- Pranoprofen Impurity 66 (CAS CATO-C4X-181166)
- Phenylephrine Impurity 50 (CAS CATO-C4X-146750)
- 6-Chloro-1-methyl-N-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 931719-54-9)
- N-(4-Aminophenyl)-N-methylmethanesulfonamide (CAS 251552-20-2)
- 5-(P-tolyl)-1,3,4-oxadiazol-2-amine (CAS 33621-60-2)
- (1R,2R)-2-(1-Methyl-1H-pyrazol-4-yl)cyclopropane-1-carboxylic acid (CAS 1820569-90-1)
- N-(2-aminoethyl)-2-fluorobenzamide hydrochloride (CAS 152535-13-2)
- 5-bromo-2-(2,4-difluorophenoxy)pyrimidine (CAS 1275282-76-2)
- Tirzepatide Impurity 12 (CAS CATO-C4X-324012)
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