5-Chloro-2-methyl-N-(thiophen-3-ylmethyl)aniline CAS 1019631-23-2
| CAS No. | 1019631-23-2 |
| Molecular Formula | C12H12ClNS |
| Molecular Weight | 237.75 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.
5-Chloro-2-methyl-N-(thiophen-3-ylmethyl)aniline (CAS 1019631-23-2) is a high-purity analytical reference standard with the molecular formula C12H12ClNS and a molecular weight of 237.75 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution, 5-Chloro-2-methyl-N-(thiophen-3-ylmethyl)aniline is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 237.75 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 5-Chloro-2-methyl-N-(thiophen-3-ylmethyl)aniline 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 | C12H12ClNS |
| Molecular Weight | 237.75 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| 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.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 3-Chloro-2-methyl-N-(thiophen-3-ylmethyl)aniline (CAS 1019535-48-8)
- 3-Chloro-N-(1-(thiophen-2-yl)ethyl)aniline (CAS 1019541-12-8)
- 4-Chloro-N-(1-(thiophen-2-yl)ethyl)aniline (CAS 1019619-42-1)
- 2-Chloro-4-methyl-N-(thiophen-3-ylmethyl)aniline (CAS 1039901-30-8)
- 2-Chloro-4-methyl-N-(thiophen-2-ylmethyl)aniline (CAS 1040056-01-6)
- 4-Chloro-2-methyl-N-(thiophen-3-ylmethyl)aniline (CAS 1040320-47-5)
- 4-Chloro-6-(isopropylthio)quinoline (CAS 1912423-48-3)
- 2-Chloro-4-(4-isopropylphenyl)thiazole (CAS 99797-29-2)
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