2-Chloro-4-(methylthio)aniline CAS 20901-66-0
| CAS No. | 20901-66-0 |
| Molecular Formula | C7H8ClNS |
| Molecular Weight | 173.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Chloro-4-(methylthio)aniline is closely related to a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 2-Chloro-4-(methylthio)aniline (CAS 20901-66-0), a certified reference material (molecular formula C7H8ClNS, MW 173.66 g/mol) for analytical method development and quality control.
Based on its molecular formula C7H8ClNS, 2-Chloro-4-(methylthio)aniline contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 173.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 2-Chloro-4-(methylthio)aniline 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 | C7H8ClNS |
| Molecular Weight | 173.66 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 2-Chloro-5-[(methylsulfanyl)methyl]pyridine (CAS 1021870-94-9)
- 5-Chloro-2-(ethylthio)pyridine (CAS 102645-38-5)
- 2-chloro-4-[(methylsulfanyl)methyl]pyridine (CAS 1247789-01-0)
- 2-Chloro-4-(ethylsulfanyl)pyridine (CAS 1339527-11-5)
- 4-Chloro-3-(methylsulfanyl)aniline (CAS 13442-44-9)
- 2-Chloro-5-cyclobutylthiazole (CAS 1412955-40-8)
- 2-chloro-4H,5H,6H-cyclopenta[b]thiophen-4-amine (CAS 1518717-54-8)
- 2-Chloro-5-(methylsulfanyl)aniline (CAS 15945-75-2)
Recommended Standards
- 2-(Chloromethyl)-5-cyclopropylthiazole (CAS 2092724-06-4)
- 2-Chloro-4,5,6,7-tetrahydro-1,3-benzothiazole (CAS 26846-98-0)
- 2-(5-Chlorothiophen-2-yl)cyclopropan-1-amine (CAS 933713-00-9)
- 3-Chloro-4-(methylsulfanyl)aniline (CAS 5211-01-8)
- 1-(4-Methoxybenzyl)piperidine-3-carboxylic acid (CAS 96009-30-2)
- 5-(1-Ethylpyrrolidin-2-yl)-N,N,6-trimethylpyridin-2-amine (CAS 1352537-81-5)
- 1-(3-(2-(4-Nitrobenzamido)ethyl)-1H-indol-2-yl)pyridin-1-ium bromide (CAS 1291072-38-2)
- 1-(3,5-Dichlorophenyl)-3-(3-fluorophenyl)propan-1-one (CAS 898767-65-2)
- Fmoc-D-Glu(OBzl)-OH (CAS 104091-11-4)
- Diphenyl-2,2',4,4',6,6'-d6-amine (CAS 99234-91-0)
- 3-(Morpholin-4-ylmethyl)-1H-indole-4-carboxylic acid (CAS 1081130-47-3)
- Butyraldehyde-2,4-Dinitrophenylhydrazone (CAS 1527-98-6)
- 3-Methyl-2h-indazole hydrochloride (CAS 1258640-45-7)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com