4-Chloro-2-(methylthio)benzo[d]thiazole CAS 3507-40-2
| CAS No. | 3507-40-2 |
| Molecular Formula | C8H6ClNS2 |
| Molecular Weight | 215.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-2-(methylthio)benzo[d]thiazole (CAS 3507-40-2), molecular formula C8H6ClNS2 and molecular weight 215.72 g/mol, is a CATO reference standard with documented purity and traceability.
4-Chloro-2-(methylthio)benzo[d]thiazole (C8H6ClNS2) contains a nitrogen-containing heterocyclic scaffold, 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.
As a certified reference material (CRM), 4-Chloro-2-(methylthio)benzo[d]thiazole 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.
Physical & Chemical Properties
| Molecular Formula | C8H6ClNS2 |
| Molecular Weight | 215.72 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Chloro Standards
- 2-chloro-1-(4-methyl-1H-indol-3-yl)ethanone (CAS 115027-17-3)
- 2-chloro-1-(6-methyl-1H-indol-3-yl)ethanone (CAS 115027-18-4)
- 2-(4-Chloro-3,5-dimethyl-1h-pyrazol-1-yl)-3-methylbutan-1-amine (CAS 1171866-00-4)
- 11-chloro-1,8,10-triazatricyclo[7.4.0.0²,⁷]trideca-2(7),3,5,8,10,12-hexaene (CAS 1335498-80-0)
- 2-chloro-4-(5-methylthiophen-2-yl)-1,3-thiazole (CAS 1343463-13-7)
- 4-Chloro-1-heptyl-1h-pyrazol-3-amine (CAS 1477807-49-0)
- 1-chloro-7H,8H,9H,10H-pyrazino[1,2-b]indazole (CAS 1602279-99-1)
- 5-chloro-1,6,8-triazatricyclo[7.2.2.0²,⁷]trideca-2,4,6-triene (CAS 1638604-54-2)
Recommended Standards
- 3-chlorobenzofuro[2,3-c]pyridine (CAS 2340379-27-1)
- 4-chloro-9H-pyrimido[4,5-b]indole (CAS 5719-08-4)
- 2-Chloro-N-(cyclohex-1-en-1-yl)-N-propylacetamide (CAS 21417-17-4)
- 4-chloroimidazo[1,5-a]quinoxaline (CAS 221025-38-3)
- 5-(Difluoromethyl)-6-oxo-1,6-dihydropyridine-2-carboxamide (CAS 1805309-20-9)
- 2-Ethyl-1,3,8-triazaspiro[4.5]Dec-2-en-4-one hydrochloride (CAS 1713163-91-7)
- (Ethylenedinitrilo)tetraacetonitrile (CAS 5766-67-6)
- 3,6-Dibromo-9-(4-dodecyloxyphenyl)-9H-carbazole (CAS 865163-47-9)
- (+)-Menthofuran (CAS 17957-94-7)
- Methyl 2-amino-3-(3,4-dimethylphenyl)propanoate (CAS 1339775-11-9)
- 1-(2-((2-Chlorothiazol-5-yl)methoxy)phenyl)ethan-1-one (CAS 320423-63-0)
- (S)-2-((tert-Butoxycarbonyl)amino)-4-(2,4-difluorophenyl)butanoic acid (CAS 1260589-32-9)
- N1-(5-Methylisoxazol-3-yl)-N2-(2-morpholinoethyl)oxalamide (CAS 899978-09-7)
- Semaglutide impurity 66 (CAS CATO-C4X-222666)
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