Dopamine Impurity CAS 83442-18-6
| CAS No. | 83442-18-6 |
| Molecular Formula | C8H11NO5S |
| Molecular Weight | 233.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Dopamine Impurity (CAS 83442-18-6), molecular formula C8H11NO5S and molecular weight 233.24 g/mol, is a CATO reference standard with documented purity and traceability.
Dopamine Impurity (C8H11NO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Dopamine Impurity 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 | C8H11NO5S |
| Molecular Weight | 233.24 g/mol |
| Purity | 97%+ |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dopamine Standards
- Dopamine 3-O-Sulfate (CAS 51317-41-0)
- Dopamine 4-O-Sulfate (CAS 38339-02-5)
- Dopamine Impurity 91 (CAS 344791-86-2)
- Dopamine Impurity 113 (CAS CATO-C4X-1908113)
- Dopamine Impurity 73 (CAS CATO-C4X-190873)
- Dopamine Impurity 48 (CAS 500337-08-6)
- Dopamine Impurity 6 (CAS 37630-20-9)
- Dopamine Impurity 10 (CAS 22568-47-4)
Recommended Standards
- Ethyl 1-methyl-3-sulfamoyl-1H-pyrazole-5-carboxylate (CAS 1995072-17-7)
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- 6-Fluoro-2-isopropylquinoline-4-carboxylic acid (CAS 887206-68-0)
- Ethyl 5-(4-fluorophenyl)-1H-pyrrole-3-carboxylate (CAS 250213-74-2)
- Cephalexin Dimer (CAS CATO-C4X-126111)
- 1-((2,5-Dimethylthiophen-3-yl)sulfonyl)piperazine (CAS 1094631-09-0)
- (3,5-²H₂)furan-2-carboxylic acid (CAS 32016-65-2)
- Methyl 4,6-dimethyl-2-oxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 341011-20-9)
- D-Homocysteine thiolactone (CAS 130548-06-0)
- 2-(4-Bromophenyl)-2-(pyrrolidin-1-yl)acetic acid (CAS 490027-02-6)
- 5-Amino-3-(3-chlorophenyl)pyrazole (CAS 208519-09-9)
- 3-Fluoro-2-(trifluoromethoxy)benzoic acid (CAS 1242252-50-1)
- 2-Bromo-3,4,5-trifluoro-1-(trifluoromethyl)benzene (CAS 2088942-34-9)
- Tyr-Proinsulin C-Peptide (55-89) (human) (CAS 139532-11-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com