2-(Difluoromethyl)thiophene CAS 98909-14-9
| CAS No. | 98909-14-9 |
| Molecular Formula | C5H4F2S |
| Molecular Weight | 134.15 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 2-(Difluoromethyl)thiophene.
2-(Difluoromethyl)thiophene (CAS 98909-14-9) is a high-purity analytical reference standard with the molecular formula C5H4F2S and a molecular weight of 134.15 g/mol.
Owing to sulfur-containing functionality, fluorine substitution, 2-(Difluoromethyl)thiophene is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 134.15 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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-(Difluoromethyl)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 | C5H4F2S |
| Molecular Weight | 134.15 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.) | 1985 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-Ethyl-2-fluorobutanoic Acid (CAS 34067-70-4)
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- methyl 3-amino-2-[(3-fluorophenyl)methyl]propanoate hydrochloride (CAS 1258652-42-4)
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- 5-amino-1-(pyridin-3-yl)-1H-imidazole-4-carboxamide (CAS 1798713-75-3)
- 1,2,3-Trifluoro-4-methoxybenzene (CAS 203245-16-3)
- 2-Benzyl-4-fluoro-1,2,3,4-tetrahydroisoquinoline (CAS 537033-78-6)
- Aprepitant EP Impurity B (CAS 2206606-86-0)
- 4-(2-Hydroxy-2-propanyl)phenylboronic Acid (CAS 886593-45-9)
- 4-(3-(1-Propylpyrrolidin-2-yl)pyridin-2-yl)morpholine (CAS 1352509-00-2)
- 263251-78-1 NMG938VJ6T D-3 Tavilermide [USAN:INN] UNII-NMG938VJ6T MIM-D3 MIM-D 3 D 3 (peptide) Tavilermide (CAS 263251-78-1)
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