(Z)-2-Amino-5-(3,5-di-tert-butyl-4-hydroxybenzylidene)thiazol-4(5H)-one CAS 139226-28-1
| CAS No. | 139226-28-1 |
| Molecular Formula | C18H24N2O2S |
| Molecular Weight | 332.46 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.
(Z)-2-Amino-5-(3,5-di-tert-butyl-4-hydroxybenzylidene)thiazol-4(5H)-one (CAS 139226-28-1), molecular formula C18H24N2O2S and molecular weight 332.46 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (Z)-2-Amino-5-(3,5-di-tert-butyl-4-hydroxybenzylidene)thiazol-4(5H)-one (C18H24N2O2S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), (Z)-2-Amino-5-(3,5-di-tert-butyl-4-hydroxybenzylidene)thiazol-4(5H)-one 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 | C18H24N2O2S |
| Molecular Weight | 332.46 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Z Standards
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- 2-Amino-N-(2,4-dimethoxyphenyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 862677-82-5)
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- Ethyl 2-amino-5-[(2,4-dimethylphenyl)carbamoyl]-4-methylthiophene-3-carboxylate (CAS 329082-05-5)
Recommended Standards
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- N-(3-(2-Methoxyethyl)-6-methylbenzo[d]thiazol-2(3H)-ylidene)cyclohexanecarboxamide (CAS 1005933-27-6)
- tert-Butyl 4-cyano-4-(4-(methylthio)-phenyl)piperidine-1-carboxylate (CAS 1673527-14-4)
- 6-Chloro-4-methylpyridin-2-ol (CAS 25297-47-6)
- Stearoyl Carnitine (CAS 1976-27-8)
- N-Methoxy-N-methylpropiolamide (CAS 130250-60-1)
- 7-Bromo-2-chloro-4-methylbenzo[d]thiazole (CAS 1190321-90-4)
- 3-(1-Ethylpiperidin-4-yl)-1,2,4,5-tetrahydropyrrolo[2,3-c]pyrazole (CAS 641991-57-3)
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