Dopamine Impurity 77 CAS 854733-87-2
| CAS No. | 854733-87-2 |
| Molecular Formula | C18H23NO4 |
| Molecular Weight | 317.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 317.38 g/mol gives Dopamine Impurity 77 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Dopamine Impurity 77 (CAS 854733-87-2) is a certified pharmaceutical impurity reference standard with the molecular formula C18H23NO4 and a molecular weight of 317.38 g/mol.
Structurally, Dopamine Impurity 77 (C18H23NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 317.38 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.
CATO manufactures Dopamine Impurity 77 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 | C18H23NO4 |
| Molecular Weight | 317.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Dopamine Standards
- Dopamine Impurity 106 (CAS CATO-C4X-1908106)
- Dopamine Impurity 42 (CAS CATO-C4X-190842)
- Dopamine Impurity 33 (CAS CATO-C4X-190833)
- Dopamine Impurity 35 (CAS CATO-C4X-190835)
- Dopamine Impurity 101 (CAS CATO-C4X-1908101)
- Dopamine Impurity 111 (CAS CATO-C4X-1908111)
- Dopamine impurity 110 (CAS CATO-C4X-1908110)
- Dopamine Impurity 48 (CAS CATO-C4X-190848)
Recommended Standards
- Dobutamine Impurity 51 (CAS CATO-C4X-129851)
- Revefenacin Impurity 61 (CAS CATO-C4X-203161)
- Dobutamine Impurity 42 (CAS CATO-C4X-129842)
- Lumateperone Impurity 75 (CAS 2762307-17-3)
- Bortezomib Impurity 4 (CAS 289472-81-7)
- Apremilast Impurity 104 (CAS CATO-C4X-1009104)
- Rimegepant Impurity 101 (CAS CATO-C4X-2487101)
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- 3-(tert-Butoxy)-5-cyclopropoxy-2-methylpyridine (CAS 1243284-20-9)
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- 2-Benzyl-5,6-dimethyl-3a,4,7,7a-tetrahydro-1H-isoindole-1,3(2H)-dione (CAS 145673-86-5)
- Ethyl trans-4-Aminocyclohexanecarboxylate HCl (CAS 2084-28-8)
- (4-Aminophenyl)(3-methylmorpholino)methanone (CAS 1156650-13-3)
- Neuropeptide SF (human) (CAS 192387-39-6)
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