rel-(4R,5S)-2,4,5-Trimethyl-4,5-dihydrothiazole CAS 23236-43-3
| CAS No. | 23236-43-3 |
| Molecular Formula | C22H29NO9S |
| Molecular Weight | 483.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
rel-(4R,5S)-2,4,5-Trimethyl-4,5-dihydrothiazole (C22H29NO9S) contains a flavonoid core, an amide group, a sulfone 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
rel-(4R,5S)-2,4,5-Trimethyl-4,5-dihydrothiazole (CAS 23236-43-3) is a high-purity analytical reference standard with the molecular formula C22H29NO9S and a molecular weight of 483.53 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures rel-(4R,5S)-2,4,5-Trimethyl-4,5-dihydrothiazole 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 | C22H29NO9S |
| Molecular Weight | 483.53 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- Ethyl 2-(2-((3-cyano-6-methyl-4-(trifluoromethyl)pyridin-2-yl)thio)acetamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 445383-14-2)
- Atorvastatin Impurity 125 (CAS 1821498-27-4)
- (4AR,6S,7R,8R,8aS)-7-(1,3-dioxoisoindolin-2-yl)-6-(ethylthio)-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-8-yl acetate (CAS 125520-04-9)
- Roxadustat Impurity 7 (CAS 1455091-06-1)
- Ethyl 3,4-dimethylpent-2-enoate (CAS 21016-45-5)
- (4-amino-3-methylpyridin-2-yl)methanol (CAS 1314911-22-2)
- N-[4-(aminomethyl)phenyl]-4-fluorobenzamide (CAS 926207-17-2)
- 2-Benzylcyclopentan-1-ol (CAS 13694-31-0)
- 5-(Propan-2-yloxy)pyridine-3-carboxylic acid (CAS 863507-81-7)
- (2S,3S,4S,5R)-2-(6-Amino-2-fluoro-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diol (CAS 21679-15-2)
- Methyl 3-Iodo-4-methoxybenzoate (CAS 35387-93-0)
- 5-Bromo-2-chloro-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine (CAS 1299607-35-4)
- 2-(9,9'-Spirobi[fluoren]-2-yl)-4,6-di([1,1':3',1''-terphenyl]-5'-yl)-1,3,5-triazine (CAS 1233200-52-6)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
Why CATO?
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