2-chloro-1-(1,2-thiazol-5-yl)ethan-1-one CAS 2044713-56-4
| CAS No. | 2044713-56-4 |
| Molecular Formula | C5H4ClNOS |
| Molecular Weight | 161.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-chloro-1-(1,2-thiazol-5-yl)ethan-1-one 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.
CATO supplies 2-chloro-1-(1,2-thiazol-5-yl)ethan-1-one (CAS 2044713-56-4), a certified reference material (molecular formula C5H4ClNOS, MW 161.61 g/mol) for analytical method development and quality control.
Structurally, 2-chloro-1-(1,2-thiazol-5-yl)ethan-1-one (C5H4ClNOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. 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 161.61 g/mol, it falls into the medium-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).
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.
Physical & Chemical Properties
| Molecular Formula | C5H4ClNOS |
| Molecular Weight | 161.61 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related chloro Standards
- 3-Chloro-5-(methylthio)-1,2,4-triazine (CAS 1247802-89-6)
- 2-Chloro-5-methylthiazole-4-carbaldehyde (CAS 1379296-36-2)
- 1-(2-Chloro-1,3-thiazol-5-yl)ethanone (CAS 885229-41-4)
- 1-(3-Chloro-4-isothiazolyl)ethanone (CAS 2643340-78-5)
- 2-chloro-1-(1,3-thiazol-4-yl)ethan-1-one (CAS 52540-23-5)
- 2-Chloro-4-(methylthio)-1,3,5-triazine (CAS 61810-07-9)
- 2-Chloro-4-methylthiazole-5-carbaldehyde (CAS 289469-54-1)
- 4-Chloro-2-methylthiazole-5-carbaldehyde (CAS 866329-08-0)
Recommended Standards
- 2-Amino-6-chloropyrimidine-4(3H)-thione (CAS 6310-02-7)
- 2-(2-Chlorothiazol-5-yl)acetaldehyde (CAS 214545-44-5)
- 1-(2-Chlorothiazol-4-yl)ethan-1-one (CAS 222169-08-6)
- 2-Methyl-1,3-thiazole-5-carbonyl chloride (CAS 60971-72-4)
- 4-Methyl-3-(piperazin-1-yl)aniline (CAS 944532-19-8)
- 5-Bromo-2-fluoro-4-methylbenzenesulfonyl chloride (CAS 874801-49-7)
- 2-(4-Methylpiperazin-1-yl)-2-phenylacetic acid (CAS 347186-24-7)
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- 4-Methyl-2-(1,2,3,4-tetrahydroisoquinolin-2-yl)cyclohexan-1-amine (CAS 1014027-84-9)
- 2-(Dimethylamino)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)nicotinonitrile (CAS 1346809-50-4)
- tert-Butyl 3-(N-hydroxycarbamimidoyl)azetidine-1-carboxylate (CAS 1309207-05-3)
- 1,5-Dioxo-9-oxa-2,4-diazaspiro[5.5]Undec-2-ene-3-thiolate (CAS 303042-00-4)
- 3-(Benzylamino)-1-(4-iodophenyl)pyrrolidine-2,5-dione (CAS 1009417-93-9)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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