4,5-Dichloro-2-methylthiophenol CAS 1806348-49-1
| CAS No. | 1806348-49-1 |
| Molecular Formula | C7H6Cl2S |
| Molecular Weight | 193.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 4,5-Dichloro-2-methylthiophenol (C7H6Cl2S) is characterized by sulfur-containing functionality, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
4,5-Dichloro-2-methylthiophenol (CAS 1806348-49-1), molecular formula C7H6Cl2S and molecular weight 193.09 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C7H6Cl2S |
| Molecular Weight | 193.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloro Standards
- 2,4-Dichloro-6-methylbenzenethiol (CAS 140131-93-7)
- 1,2-Dichloro-3-(methylsulfanyl)benzene (CAS 17733-25-4)
- 3,5-Dichloro-4-methylthiophenol (CAS 1803729-13-6)
- 2,3-Dichloro-5-methylthiophenol (CAS 1803805-59-5)
- 3,4-Dichloro-5-methylthiophenol (CAS 1803837-31-1)
- 2,6-Dichloro-4-methylthiophenol (CAS 1803838-39-2)
- 3,5-Dichloro-2-methylthiophenol (CAS 1804516-82-2)
- 2,5-Dichloro-3-methylthiophenol (CAS 1804896-97-6)
Recommended Standards
- (2,4-Dichlorophenyl)(methyl)sulfane (CAS 65909-82-2)
- (2,6-Dichlorophenyl)(methyl)sulfane (CAS 4210-03-1)
- (3,5-Dichlorophenyl)(methyl)sulfane (CAS 68121-46-0)
- (3,5-Dichlorophenyl)methanethiol (CAS 65963-17-9)
- N-(4-ethylphenyl)acrylamide (CAS 15271-58-6)
- Ethyl 3-(2-formyl-6-methoxyphenoxy)propanoate (CAS 1443311-56-5)
- N-[3-(2-Ethoxyethoxy)benzyl](4-methoxyphenyl)-methanamine (CAS 1040686-59-6)
- 2-Hydroxy-3-((phenyl(2,4,6-trimethylbenzoyl)phosphoryl)oxy)propyl methacrylate (CAS 1629221-88-0)
- 2-Iodo-6-methyl-3-nitropyridine (CAS 1595744-66-3)
- Methyl 7-(5-oxo-3-((tetrahydro-2H-pyran-2-yl)oxy)cyclopent-1-en-1-yl)hept-5-enoate (CAS 42542-01-8)
- 5-Bromo-1-(tetrahydro-2H-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridine-3-carbaldehyde (CAS 1314734-59-2)
- 2-Amino-N-(2-((4-chloro-2-methylphenyl)amino)-2-oxoethyl)acetamide hydrochloride (CAS 1832872-91-9)
- Rocuronium Impurity 14 (CAS 1190105-60-2)
- Allo-D-Ile17-Tirzepatide (CAS CATO-CPTD788962)
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