3-(Chloromethyl)thiophene CAS 2746-23-8
| CAS No. | 2746-23-8 |
| Molecular Formula | C5H5ClS |
| Molecular Weight | 132.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-(Chloromethyl)thiophene.
3-(Chloromethyl)thiophene (CAS 2746-23-8), molecular formula C5H5ClS and molecular weight 132.61 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(Chloromethyl)thiophene (C5H5ClS) is characterized by sulfur-containing functionality, chlorine substitution. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-(Chloromethyl)thiophene 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 | C5H5ClS |
| Molecular Weight | 132.61 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloromethyl Standards
- 1-(Chloromethyl)-1-propylcyclopropane (CAS 1481389-10-9)
- (Chloromethyl)cyclohexane(mix) (CAS 26895-68-1)
- 3-(Chloromethyl)cyclopentan-1-one (CAS 66980-41-4)
- 3-(Chloromethyl)-5-methyl-1,2,4-oxadiazole (CAS 1192-80-9)
- 5-(Chloromethyl)-3-methyl-1,2,4-oxadiazole (CAS 1192-81-0)
- 3-(Chloromethyl)-1H-1,2,4-triazol-5-amine (CAS 1314970-82-5)
- 2-(Chloromethyl)-5-methyl-1,3,4-oxadiazole (CAS 3914-42-9)
- 3-(Chloromethyl)-4-methyl-1,2,5-oxadiazole (CAS 62642-47-1)
Recommended Standards
- 2-Chloromethylthiophene (CAS 765-50-4)
- 4-Chloro-2-methylthiophene (CAS 91375-70-1)
- 2-Chloro-4-methylthiophene (CAS 91505-25-8)
- 5-chloro-5-methylhex-1-ene (CAS 116911-84-3)
- 5-Fluoro Cytidine (CAS 2341-22-2)
- Ethyl 1-benzyl-3-cyclopropyl-6-hydroxy-1h-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1160246-17-2)
- 2,2-Difluoro-2-(methylsulfinyl)acetic acid (CAS 1536017-62-5)
- Methyl (S)-2-Amino-3-(2-pyridyl)propanoate (CAS 172927-00-3)
- Fexofenadine Impurity 42 (CAS 214601-54-4)
- n-(3-Chlorobenzyl)-2-methylbutan-2-amine (CAS 932261-67-1)
- 2-(Benzylthio)-5-(cinnamylthio)-1,3,4-thiadiazole (CAS 477735-15-2)
- N-([1,1'-biphenyl]-4-yl)-[1,1':3',1''-terphenyl]-4-amine (CAS 897671-66-8)
- 4-Sulfino-1H-imidazole-5-carboxylic acid (CAS 251948-57-9)
- Neuropeptide Y (2-36) (human, rat) trifluoroacetate salt (CAS 123139-39-9)
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