2-(2,5-Dichlorothiophen-3-yl)acetamide CAS 34967-62-9
| CAS No. | 34967-62-9 |
| Molecular Formula | C6H5Cl2NOS |
| Molecular Weight | 210.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 210.08 g/mol gives 2-(2,5-Dichlorothiophen-3-yl)acetamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-(2,5-Dichlorothiophen-3-yl)acetamide (CAS 34967-62-9), molecular formula C6H5Cl2NOS and molecular weight 210.08 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-(2,5-Dichlorothiophen-3-yl)acetamide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 210.08 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.
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), 2-(2,5-Dichlorothiophen-3-yl)acetamide 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 | C6H5Cl2NOS |
| Molecular Weight | 210.08 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichlorothiophen Standards
- 2-(4,5-Dichlorothiophen-2-yl)acetic acid (CAS 89281-28-7)
- 3-(2,5-Dichlorothiophen-3-yl)-1H-pyrazole (CAS 166196-62-9)
- 2,5-dichlorothiophen-3-ylboronic acid (CAS 177735-28-3)
- (S)-1-(2,5-Dichlorothiophen-3-yl)ethan-1-ol (CAS 1567870-68-1)
- (R)-1-(2,5-Dichlorothiophen-3-yl)ethan-1-ol (CAS 867288-34-4)
- (4,5-Dichlorothiophen-2-yl)boronic acid (CAS 1190737-21-3)
- 1-(2,5-Dichlorothiophen-3-yl)ethan-1-amine (CAS 603951-46-8)
- 4-(2,5-Dichlorothiophen-3-yl)butan-1-amine (CAS 1483263-48-4)
Recommended Standards
- 2-((Dihydrofuran-3(2H)-ylidene)methyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2246914-68-9)
- 2-(3,4-Dihydro-2H-pyran-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 287944-17-6)
- 2-((1E,3E)-4-Methoxybuta-1,3-dien-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 540777-96-6)
- 2-(3-Oxabicyclo[3.1.0]hexan-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2489456-36-0)
- N-((3,5-dimethyl-1-phenyl-1H-pyrazol-4-yl)methyl)propan-2-amine (CAS 1156806-31-3)
- 5-(Bromomethyl)-3-chloro-6-(difluoromethyl)pyridin-2-amine (CAS 1803671-64-8)
- Allyl alcohol (CAS 107-18-6)
- Ethyl 4,5-dihydrobenzo[2,3]oxepino[4,5-d]thiazole-2-carboxylate (CAS 1189816-01-0)
- 3-((3-Methylbenzyl)thio)-1-(m-tolyl)-5,6,7,8-tetrahydroisoquinoline-4-carbonitrile (CAS 439107-41-2)
- 5-Chloro-3,6-dimethylpyrazin-2(1H)-one (CAS 33870-84-7)
- 5-Methoxy-1h-indole-4-carboxylic acid (CAS 1360886-14-1)
- 3-bromo-5-(dimethylamino)benzoic acid (CAS 1369915-68-3)
- (S)-2-((Tert-butoxycarbonyl)amino)-3-(4-chloro-3-fluorophenyl)propanoic acid (CAS 1629658-28-1)
- Semaglutide Impurity 5 (CAS 23406-82-8)
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