Thiazole-4,5-dicarbaldehyde CAS 13669-78-8
| CAS No. | 13669-78-8 |
| Molecular Formula | C5H3NO2S |
| Molecular Weight | 141.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Thiazole-4,5-dicarbaldehyde (CAS 13669-78-8), a certified reference material (molecular formula C5H3NO2S, MW 141.15 g/mol) for analytical method development and quality control.
Based on its molecular formula C5H3NO2S, Thiazole-4,5-dicarbaldehyde contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 141.15 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H3NO2S |
| Molecular Weight | 141.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Thiazole Standards
- 1,3-Thiazole-4,5-dicarbaldehyde 2465AE 39669-78-8 C5H3NO2S (CAS 39669-78-8)
- 2-ethyl-1,3-thiazole-4-carbaldehyde (CAS 433214-90-5)
- 5-Ethyl-1,3-thiazole-2-carbaldehyde (CAS 339989-68-3)
- 4-Methyl-1,3-thiazole-2-carboxamide (CAS 760201-86-3)
- 2-methyl-1,3-thiazole-4-carboxylic acid (CAS 35272-15-2)
- Thiazole-4-carbohydrazide (CAS 101257-38-9)
- 1,3-Thiazole-2-carbothioamide (CAS 60758-41-0)
- 1,3-Thiazole-4-carbothioamide (CAS 80653-66-3)
Recommended Standards
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- N'-Benzylidene-2-((5-(benzylthio)-1,3,4-thiadiazol-2-yl)thio)acetohydrazide (CAS 315200-99-8)
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- Tirzepatide Impurity 35 (CAS CATO-C4X-324035)
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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