5-chloro-3-methyl-1-benzothiophene CAS 19404-18-3
| CAS No. | 19404-18-3 |
| Molecular Formula | C9H15ClS |
| Molecular Weight | 190.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-chloro-3-methyl-1-benzothiophene is closely related to sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-chloro-3-methyl-1-benzothiophene (CAS 19404-18-3), molecular formula C9H15ClS and molecular weight 190.73 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H15ClS, 5-chloro-3-methyl-1-benzothiophene contains sulfur-containing functionality, chlorine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 190.73 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 5-chloro-3-methyl-1-benzothiophene 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 | C9H15ClS |
| Molecular Weight | 190.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related chloro Standards
- 2-Chloro-5-(methylthio)benzenethiol (CAS 1349717-07-2)
- 2-(4-Chloro-3,3-dimethylbutyl)tetrahydrofuran (CAS 1478154-78-7)
- 2-(5-Chloro-4-methylpentyl)tetrahydrofuran (CAS 1478932-84-1)
- 1-(3-Chloro-2-methylpropyl)-4-methylpiperazine (CAS 39607-92-6)
- 1-Chloro-4-ethyl-2-methyloctane (CAS 1486717-44-5)
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Recommended Standards
- Neodecanoylchloride (CAS 40292-82-8)
- 6-(chloromethyl)-1-benzothiophene (CAS 56540-84-2)
- 1-(4-Chlorophenyl)-2-methyldisulfane (CAS 53830-55-0)
- 4-(Chloromethyl)-6-methylnonane (CAS 1466613-15-9)
- 2-Fluoro-5-methylphenylboronic Acid (CAS 166328-16-1)
- 2-Chloro-N-(2-hydroxy-5-methylphenyl)propanamide (CAS 17959-87-4)
- 4-[Hydroxy(4-methylphenyl)methyl]phenylboronic acid (CAS 1793003-77-6)
- Iberiotoxin (CAS 129203-60-7)
- (2R,3S,5R)-5-(4-Benzamido-2-oxopyrimidin-1(2H)-yl)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)tetrahydrofuran-3-yl methyl diiSopropylphosphoramidite (CAS 84416-83-1)
- 5-Bromo-6-methylpicolinoyl chloride (CAS 1310416-51-3)
- (4-Chlorophenyl)(2,4-difluorobenzyl)sulfane (CAS 1443311-91-8)
- n-(1h-Pyrazol-4-yl)-2-(o-tolyloxy)acetamide (CAS 1157111-82-4)
- 3-Chloro-8-methylquinolin-6-ol (CAS 1126435-81-1)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
Why CATO?
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