Cyamemazine Maleate CAS 25332-99-4
| CAS No. | 25332-99-4 |
| Molecular Formula | C19H21N3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Cyamemazine Maleate (CAS 25332-99-4), molecular formula C19H21N3SC4H4O4 and molecular weight 439.53 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H21N3SC4H4O4, Cyamemazine Maleate contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 439.53 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Cyamemazine Maleate 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 | C19H21N3S C4H4O4 |
| Molecular Weight | 439.53 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cyamemazine Standards
Recommended Standards
- 4,6-Diiodopyridazin-3-amine (CAS 1851931-78-6)
- 1-(4-Chlorobenzoyl)-4-(2-hydroxyethyl)-2,5-dimethyl-1,2-dihydro-3H-pyrazol-3-one (CAS 866039-64-7)
- rel-(2R,3S)-3-Amino-2-hydroxy-4-phenylbutanoic acid (CAS 76647-67-1)
- 1-(benzylsulfanyl)-2-(chloromethyl)benzene (CAS 4521-46-4)
- 5-Chloro-3-[(4-fluorophenyl)methyl]-1,2,4-oxadiazole (CAS 1247677-00-4)
- 2-((Tert-butoxycarbonyl)amino)-3-(2-oxopyrrolidin-3-yl)propanoic acid (CAS 249736-52-5)
- 1-(4-Iodophenyl)cyclobutanemethanamine (CAS 1936255-32-1)
- 6-Fluoro-2,8-dimethylquinolin-4-ol (CAS 1154918-17-8)
- 5-Chloro-2-fluoro-4-pyridineboronic Acid (CAS 1034659-38-5)
- (D-Tyr1,N-Me-Phe3)-Neuropeptide FF (H-4752.0001) (CAS 145274-93-7)
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