Dopamine Impurity 99 CAS CATO-C4X-190899
| CAS No. | CATO-C4X-190899 |
| Molecular Formula | C8H9NO3 |
| Molecular Weight | 167.16 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 99.
As a process- or degradation-related impurity, Dopamine Impurity 99 (CAS CATO-C4X-190899, C8H9NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Dopamine Impurity 99 (C8H9NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 167.16 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO manufactures Dopamine Impurity 99 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 | C8H9NO3 |
| Molecular Weight | 167.16 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 17 (CAS 1129-53-9)
- Dopamine Impurity 81 (CAS 68929-11-3)
- Dopamine Impurity 82 (CAS 5663-54-7)
- Dopamine Impurity 83 (CAS CATO-C4X-190883)
- Dopamine Impurity 84 (CAS CATO-C4X-190884)
- Dopamine EP Impurity A (CAS 3213-30-7)
- Dopamine EP Impurity B (CAS 554-52-9)
- Dopamine Impurity 43 (CAS 52846-75-0)
Recommended Standards
- Nicotine Impurity 15 (CAS 3612-80-4)
- Phenacetin Impurity 13 (CAS 610-67-3)
- Aminomethylbenzoic Acid Impurity 3 (CAS 179076-85-8)
- 2-(4-Nitrophenyl)Ethanol (CAS 100-27-6)
- Minocycline Dehydro Impurity (CAS CATO-C4X-16995)
- Perampanel Impurity 32 (CAS CATO-C4X-243032)
- Fluconazole EP Impurity A (CAS 89429-59-4)
- 64415-07-2 7-(trifluoromethyl)quinoline-4-thiol 7-Trifluoromethyl-4-quinolinethiol (CAS 64415-07-2)
- Methyl 2,4-dihydroxy-6-methylpyrimidine-5-carboxylate (CAS 869891-41-8)
- 1-(4-Hydroxyiminopiperidin-1-yl)ethanone (CAS 135581-16-7)
- 1-(Bromomethyl)-1-isopropoxycycloheptane (CAS 1247100-16-8)
- 2-Fluoro-3-methylbenzoyl chloride (CAS 1000339-85-4)
- tert-Butyl (S)-octahydro-2H-pyrazino[1,2-a]pyrazine-2-carboxylate (CAS 2514637-89-7)
- Peptide 440 (CAS CATO-CPTD788440)
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