2-Chlorothiazole CAS 3034-52-4
| CAS No. | 3034-52-4 |
| Molecular Formula | C3H2ClNS |
| Molecular Weight | 119.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 119.57 g/mol gives 2-Chlorothiazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Chlorothiazole (CAS 3034-52-4), a certified reference material (molecular formula C3H2ClNS, MW 119.57 g/mol) for analytical method development and quality control.
2-Chlorothiazole (C3H2ClNS) contains a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C3H2ClNS |
| Molecular Weight | 119.57 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorothiazole Standards
- 4-Chlorothiazole (CAS 4175-72-8)
- 5-Chlorothiazole (CAS 4175-73-9)
- 4-Chlorothiazole-2-carbonitrile (CAS 1363383-13-4)
- 4-Chlorothiazole-5-carbonitrile (CAS 145383-72-8)
- 2-Chlorothiazole-4-carbonitrile (CAS 944124-72-5)
- 4-Chlorothiazole-5-carbaldehyde (CAS 104146-17-0)
- 5-Chlorothiazole-4-carbaldehyde (CAS 1161865-60-6)
- 4-Chlorothiazole-2-carbaldehyde (CAS 466686-79-3)
Recommended Standards
- 3-Chloroisothiazole (CAS 14217-66-4)
- 4-chloroisothiazole (CAS 25039-53-6)
- Ritonavir Impurity 44 (CAS 652131-62-9)
- Levocarnitine Impurity 18 (CAS 84367-31-7)
- (2,4-Difluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)methanol (CAS 1970977-54-8)
- 8-(Trifluoromethyl)quinoline-3-carbohydrazide (CAS 1307240-32-9)
- 2-chloro-3-(trifluoromethyl)pyridine (CAS 65753-47-1)
- Cyclohept-1-ene-1-carbaldehyde (CAS 6140-67-6)
- N-(4-Ethylphenyl)-3-(2-methoxyphenyl)-2-(2H-1,2,3,4-tetrazol-5-yl)propanamide (CAS 483993-69-7)
- 3-Methyl-1-phenyl-1,4-dihydrochromeno[4,3-c]pyrazole (CAS 77479-33-5)
- Apadenoson (CAS 250386-15-3)
- Caged Retinoic Acid (CAS 1040124-47-7)
- 2-Ethoxy-1-ethyl-1H-indole-3-carbaldehyde (CAS 141210-88-0)
- Acetyl decapeptide-3 (CAS 935288-50-9)
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