Dopamine Impurity 38 CAS CATO-C4X-190838
| CAS No. | CATO-C4X-190838 |
| Molecular Formula | C28H35NO5 |
| Molecular Weight | 465.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Dopamine Impurity 38 (C28H35NO5) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies Dopamine Impurity 38 (CAS CATO-C4X-190838), a pharmacopoeial impurity reference standard (molecular formula C28H35NO5, MW 465.58 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Dopamine Impurity 38 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C28H35NO5 |
| Molecular Weight | 465.58 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 39 (CAS CATO-C4X-190839)
- Dopamine Impurity 49 (CAS CATO-C4X-151449)
- Dopamine Impurity 46 (CAS CATO-C4X-190846)
- Dopamine Impurity 76 (CAS CATO-C4X-151476)
- Dopamine Impurity 121 (CAS CATO-C4X-1908121)
- Dopamine Impurity 47 (CAS 315188-82-0)
- Dopamine Impurity 89 (and Enantiomer) (CAS 482579-01-1)
- Dopamine Impurity 90 (CAS 1519015-73-6)
Recommended Standards
- 2,4,6-Tris(4-carboxyphenyl)-s-triazine 4,4 inverted exclamation marka,4 inverted exclamation marka-[1,3,5]Triazine-2,4,6-triyl-tris-benzoic acid 4,4 inverted exclamation marka,4 inverted exclamation marka-s-Triazine-2,4,6-triyl-tribenzoic acid 61414-16-2 H3TATB p-Cyanobenzoic acid trimer (CAS 61414-16-2)
- Avatrombopag Impurity 89 (CAS CATO-C4X-223489)
- 2-Oxo-2-phenylethyl 2-(4-heptylphenyl)quinoline-4-carboxylate (CAS 355433-33-9)
- 2-(3,5-Dimethyl-1H-pyrazole-1-carbonyl)-N-methyl-4-phenyl-N-(p-tolyl)thiophene-3-sulfonamide (CAS 1019098-50-0)
- Carbazochrome Impurity 41 (CAS CATO-C4X-229141)
- Norepinephrine Impurity 26 (CAS CATO-C4X-151426)
- Orciprenaline impurity 1 (CAS CATO-C4X-277524)
- 8-Benzyl-4-cyclopropanecarbonyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-85-8)
- 3-[(4-chloro-3,5-dimethylphenoxy)methyl]-4-methoxybenzaldehyde (CAS 438532-81-1)
- 1-(2-Chloro-6,7-dimethoxyquinolin-3-yl)ethanone (CAS 94741-42-1)
- Cyclohexyl(2-methoxyphenyl)methanone (CAS 111504-19-9)
- (3R,4R)-2,2-difluoro-3,4,5-trihydroxypentanal (CAS 95058-90-5)
- 2-Ethyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine dihydrochloride (CAS 2138084-26-9)
- Osteogenic Growth Peptide (10-14) (CAS 105250-85-9)
Why CATO?
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