1-(4-Methyl-1,2,5-thiadiazol-3-yl)ethanone CAS 211429-90-2
| CAS No. | 211429-90-2 |
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(4-Methyl-1,2,5-thiadiazol-3-yl)ethanone (C5H6N2OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 142.18 g/mol, it falls into the low-molecular-weight range. 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).
1-(4-Methyl-1,2,5-thiadiazol-3-yl)ethanone (CAS 211429-90-2) is a high-purity analytical reference standard with the molecular formula C5H6N2OS and a molecular weight of 142.18 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.
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 | C5H6N2OS |
| Molecular Weight | 142.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2017 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- N-(1,3,4-Thiadiazol-2-yl)acetimidamide (CAS 132380-82-6)
- 1-(1,2,3-Thiadiazol-4-yl)cyclopropan-1-ol (CAS 1484217-24-4)
- 1-(4-Methyl-1,2,3-thiadiazol-5-yl)ethanone (CAS 231297-64-6)
- 1-(1,3,4-Thiadiazol-2-yl)guanidine (CAS 111393-94-3)
- N-(1,2,4-Thiadiazol-5-yl)acetamide (CAS 857749-39-4)
- (5-Ethyl-1,3,4-thiadiazol-2-yl)methanamine (CAS 1126637-93-1)
- 1-(5-Methyl-1,3,4-thiadiazol-2-yl)ethan-1-amine (CAS 1368716-31-7)
- 4-Propyl-1,2,3-thiadiazol-5-amine (CAS 1490921-01-1)
Recommended Standards
- 1-(Prop-2-en-1-yl)-1h-1,2,3,4-tetrazole-5-thiol (CAS 7624-33-1)
- 1-(4-Aminothiazol-5-yl)ethanone (CAS 69316-07-0)
- 1-cyclopropyl-1H-tetrazole-5-thiol (CAS 637781-10-3)
- (Z)-1-(thiazol-4-yl)ethan-1-one oxime (CAS 68158-16-7)
- N-(sec-butyl)-4-methyl-2,6-dinitroaniline (CAS 866157-52-0)
- 3-Nitro-1-(pentan-2-yl)-1h-pyrazole (CAS 1240566-46-4)
- 5-Dimethylaminomethyl-4-p-tolyl-thiazol-2-ylamine (CAS 870693-07-5)
- 3-Fluoro-4-(4-benzylpiperazin-1-yl)aniline (CAS 937597-28-9)
- 2-(1-Ethyl-1h-pyrazol-4-yl)quinoline-4-carbohydrazide (CAS 1004643-75-7)
- dimethyl-1,2-thiazole-4-carbonitrile (CAS 13950-66-8)
- Methyl 2-(2-chloro-4-(2-methylthiazol-4-yl)phenyl)acetate (CAS 1648864-53-2)
- N-(5,5-dimethylhexan-2-yl)thietan-3-amine (CAS 1872173-37-9)
- 1-bromo-3-(cyclobutylmethyl)benzene (CAS 1643457-38-8)
- Liraglutide(14-22)TFA Salt (CAS CATO-C4X-199212)
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