2-(2-amino-4-oxo-4,5-dihydrothiazol-5-yl)acetic acid CAS 33176-41-9
| CAS No. | 33176-41-9 |
| Molecular Formula | C5H6N2O3S |
| Molecular Weight | 174.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(2-amino-4-oxo-4,5-dihydrothiazol-5-yl)acetic acid (CAS 33176-41-9), molecular formula C5H6N2O3S and molecular weight 174.18 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H6N2O3S, 2-(2-amino-4-oxo-4,5-dihydrothiazol-5-yl)acetic acid 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 174.18 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).
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.
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 | C5H6N2O3S |
| Molecular Weight | 174.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related amino Standards
- 2-((4-Amino-4H-1,2,4-triazol-3-yl)thio)acetic acid (CAS 74599-37-4)
- 2-Amino-4-oxo-5,6-dihydro-4H-1,3-thiazine-6-carboxylic acid (CAS 70596-36-0)
- 2-amino-5-Pyrimidinesulfonamide (CAS 99171-23-0)
- 2-Amino-N-(3-ethynylphenyl)acetamide (CAS 1016509-24-2)
- 6-Amino-3-methylquinolin-2(1H)-one (CAS 1018652-50-0)
- 6-Amino-3-methoxyquinoline (CAS 103037-93-0)
- 4-Amino-7-methoxyquinoline (CAS 103040-78-4)
- 4-Amino-1-methyl-1,2-dihydroquinolin-2-one (CAS 110216-80-3)
Recommended Standards
- 2-((5-Methyl-1,3,4-thiadiazol-2-yl)oxy)acetic acid (CAS 40352-31-6)
- 2-(5-Oxo-2-thioxoimidazolidin-4-yl)acetic acid (CAS 41679-36-1)
- 2-((5-Imino-2,5-dihydro-1H-1,2,4-triazol-3-yl)thio)acetic acid (CAS 401638-68-4)
- 1-(Methylsulfonyl)-1H-pyrazole-3-carbaldehyde (CAS 2618830-41-2)
- 2-Chloro-5-(4-fluorophenyl)pyrimidine (CAS 75175-39-2)
- (2R,3R,4R,5R)-2-(6-Amino-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3,4-diyl diacetate (CAS 29886-19-9)
- Sodium isopropylnaphthalenesulfonate (CAS 28348-64-3)
- 4,4,4-Trifluorobut-2-ynoic acid (CAS 120801-99-2)
- 4-chloro-6-(1-chloroethyl)-1,3,5-triazin-2-amine (CAS 1139245-20-7)
- 2-Furan-2-yl-6,8-dimethyl-quinoline-4-carboxylic acid (CAS 1709752-42-0)
- 1,2-Dimethoxy-3-methylanthracene-9,10-dione (CAS 75313-49-4)
- 4,5,6,7-Tetrahydrobenzothiophene-2-sulfonyl Chloride (CAS 128852-17-5)
- 6-(2-Methylimidazo[1,2-a]pyridine-3-carboxamido)hexanoic acid (CAS 1181286-99-6)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com