Imidazo[5,1-b]thiazole-7-carboxylic acid CAS 211033-78-2
| CAS No. | 211033-78-2 |
| Molecular Formula | C6H4N2O2S |
| Molecular Weight | 168.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H4N2O2S, Imidazo[5,1-b]thiazole-7-carboxylic acid contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 168.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Imidazo[5,1-b]thiazole-7-carboxylic acid (CAS 211033-78-2) is a high-purity analytical reference standard with the molecular formula C6H4N2O2S and a molecular weight of 168.17 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.
As a certified reference material (CRM), Imidazo[5,1-b]thiazole-7-carboxylic acid 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 | C6H4N2O2S |
| Molecular Weight | 168.17 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Imidazo Standards
- Imidazo[4,3-b][1,3]thiazole-3-carboxylic acid (CAS 1306605-02-6)
- imidazo[2,1-b][1,3]thiazole-2-carboxylic acid (CAS 773841-78-4)
- imidazo[2,1-b][1,3]thiazole-3-carboxylic acid (CAS 479028-73-4)
- Imidazo[2,1-b]thiazole-6-carboxylic Acid (CAS 53572-98-8)
- Imidazo[5,1-a]isoquinoline (CAS 234-61-7)
- 1-(imidazo[1,2-a]pyridin-7-yl)ethanone (CAS 1036991-50-0)
- 1-{imidazo[1,2-a]pyridin-6-yl}ethan-1-one (CAS 944905-12-8)
- Imidazo[2,1-b]thiazole-6-ethanamine (CAS 933698-24-9)
Recommended Standards
- Methyl 2-(methanesulfonyloxy)acetate (CAS 23550-26-7)
- N-(2-amino-4-fluorophenyl)acetamide (CAS 22380-13-8)
- N-(3-Amino-2-fluorophenyl)acetamide (CAS 521074-20-4)
- Enzalutamide Impurity N4 (CAS 869936-86-7)
- 2-Ethyl-6-(methylthio)phenol (CAS 1243387-84-9)
- 2-Amino-2-(4-aminophenyl)acetic acid (CAS 75176-85-1)
- Ethyl erucate (CAS 37910-77-3)
- 2,2-Difluoro-N-((1R,2S)-3-methyl-1-((1-(1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-1H-indazol-5-yl)oxy)-1-phenylbutan-2-yl)propanamide hydrate (CAS 1893415-64-9)
- 3,6,9,12,15,18-Hexaoxahexacosan-1-ol (CAS 4440-54-4)
- Diphenyl-1,3-thiazole-4-carboxylic acid (CAS 425392-56-9)
- Methyl 4-Bromothiophene-3-carboxylate (CAS 78071-37-1)
- (e)-3-(1h-Indol-3-yl)prop-2-en-1-ol (CAS 21777-20-8)
- 3-Methyl-4-[(2-methylphenyl)methyl]-4,5-dihydro-1H-pyrazol-5-one (CAS 329698-39-7)
- Semaglutide impurity 50 (CAS 2773558-66-8)
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