338978-81-7 5-[(2,4-dichlorophenyl)sulfanyl]-4-methyl-1,2,3-thiadiazole KS-00003FKM CAS 338978-81-7
| CAS No. | 338978-81-7 |
| Molecular Formula | C9H6Cl2N2S2 |
| Molecular Weight | 277.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
338978-81-7 5-[(2,4-dichlorophenyl)sulfanyl]-4-methyl-1,2,3-thiadiazole KS-00003FKM (CAS 338978-81-7), molecular formula C9H6Cl2N2S2 and molecular weight 277.19 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H6Cl2N2S2, 338978-81-7 5-[(2,4-dichlorophenyl)sulfanyl]-4-methyl-1,2,3-thiadiazole KS-00003FKM contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 277.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures 338978-81-7 5-[(2,4-dichlorophenyl)sulfanyl]-4-methyl-1,2,3-thiadiazole KS-00003FKM under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H6Cl2N2S2 |
| Molecular Weight | 277.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related dichlorophenyl Standards
- (2,6-Dichlorophenyl) methylcyanocarbonimidodithioate (CAS 152382-18-8)
- 4-(2,4-Dichlorophenyl)-5-(methylsulfanyl)-1,2,3-thiadiazole (CAS 338409-02-2)
- 4-(3,4-Dichlorophenyl)-5-(methylsulfanyl)-1,2,3-thiadiazole (CAS 865660-65-7)
- 5-[(3,4-Dichlorophenyl)sulfanyl]-4-methyl-1,2,3-thiadiazole (CAS 338978-71-5)
- 2-(2,4-dichlorophenyl)-5-methyl-1H-1,3-benzimidazole (CAS 111500-53-9)
- 1-(3,5-Dichlorophenyl)-3-phenylprop-2-en-1-one (CAS 1217248-40-2)
- (2E)-1-(3,4-Dichlorophenyl)-3-phenylprop-2-en-1-one (CAS 144100-20-9)
- (2E)-1-(2,5-Dichlorophenyl)-3-phenylprop-2-en-1-one (CAS 168208-79-5)
Recommended Standards
- Clenbuterol Impurity 15 (CAS 38339-14-9)
- Dichlorodi-p-xylylene (CAS 28804-46-8)
- 5-Chloro-4-{[(4-chlorophenyl)sulfanyl]methyl}-1,2,3-thiadiazole (CAS 338406-61-4)
- Vilanterol Impurity 43 (CAS CATO-C4X-193543)
- 4-Nitro-N,N-dipropylbenzamide (CAS 79868-22-7)
- Methyl 4-((1-((4-cyano-3-(trifluoromethyl)phenyl)amino)-2-methyl-1-oxopropan-2-yl)amino)-2-fluorobenzoate (CAS 208122-09-2)
- tert-Butyl (S)-2-(4-(4-fluorobenzoyl)thiazol-2-yl)pyrrolidine-1-carboxylate (CAS 1005342-78-8)
- 4-Chloro-3-fluoro-2-methoxyphenylboronic acid pinacol ester (CAS 1628524-83-3)
- 3-Iodo-6-methyl-2H-indazol-4-amine (CAS 885521-00-6)
- n-(1h-Pyrazol-4-yl)-2-(1,3,5-trimethyl-1h-pyrazol-4-yl)acetamide (CAS 1153801-78-5)
- (R)-1-Benzyl-3-bromopyrrolidine (CAS 1246182-98-8)
- H-Leu-Phe-NH? · HCl (CAS 74214-38-3)
- 4-((1,1-Dioxidobenzo[d]isothiazol-3-yl)amino)-N-phenylbenzenesulfonamide (CAS 350509-83-0)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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