4-Chlorothiophene-2-carboxamide CAS 176203-88-6
| CAS No. | 176203-88-6 |
| Molecular Formula | C5H4ClNOS |
| Molecular Weight | 161.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Chlorothiophene-2-carboxamide is closely related to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 4-Chlorothiophene-2-carboxamide (CAS 176203-88-6), a certified reference material (molecular formula C5H4ClNOS, MW 161.61 g/mol) for analytical method development and quality control.
4-Chlorothiophene-2-carboxamide (C5H4ClNOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures 4-Chlorothiophene-2-carboxamide 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 | C5H4ClNOS |
| Molecular Weight | 161.61 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, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorothiophene Standards
- 4-Chlorothiophene-3-carboxamide (CAS 1174537-09-7)
- 3-Chlorothiophene-2-carboxamide (CAS 147123-68-0)
- 5-Chlorothiophene-3-carboxamide (CAS 189330-09-4)
- 2-Chlorothiophene-3-carboxamide (CAS 189330-14-1)
- 4-Chlorothiophene-2-boronic acid (CAS 1133931-02-8)
- 5-Chlorothiophene-3-boronic acid (CAS 199659-23-9)
- 4-Chlorothiophene-2-carboximidamide (CAS 1361003-73-7)
- 2-Acetyl-3-chlorothiophene (CAS 89581-82-8)
Recommended Standards
- 3-Amino-5-chloropyrazine-2(1H)-thione (CAS 1801693-88-8)
- 5-Amino-2-chloropyrimidine-4(3H)-thione (CAS 14623-59-7)
- 2-Chloro-5-methylthiazole-4-carbaldehyde (CAS 1379296-36-2)
- 3-Chloro-5-(methylthio)-1,2,4-triazine (CAS 1247802-89-6)
- 5,6-monoepoxy Vitamin A (CAS 512-39-0)
- 1-(Sec-butyl)-4-iodo-3-nitro-1H-pyrazole (CAS 1354705-46-6)
- Potassium (1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)trifluoroborate (CAS 1150654-77-5)
- N-(4,6-Dimethylpyridin-2-yl)-1-methyl-1H-indole-2-carboxamide (CAS 142877-66-5)
- 5,8-Difluoro-4-hydroxy-2-methyl-quinoline (CAS 288151-26-8)
- (5-Chloro-2-((neopentyloxy)carbonyl)phenyl)boronicacid (CAS 1315476-05-1)
- N-(3-Methylisoxazol-4-yl)cyclopropanecarboxamide (CAS 72592-16-6)
- Manganese(II) oxide (CAS 1344-43-0)
- 1-Phenyl-1h-1,2,3-triazole-5-carboxylic acid (CAS 15966-72-0)
- Tau Peptide (273-284) trifluoroacetate salt (CAS 1663490-91-2)
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