Methyl 4-methoxy-2,5-dihydrothiophene-3-carboxylate CAS 22097-91-2
| CAS No. | 22097-91-2 |
| Molecular Formula | C7H10O3S |
| Molecular Weight | 174.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Methyl 4-methoxy-2,5-dihydrothiophene-3-carboxylate (CAS 22097-91-2) is a high-purity analytical reference standard with the molecular formula C7H10O3S and a molecular weight of 174.22 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, Methyl 4-methoxy-2,5-dihydrothiophene-3-carboxylate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 174.22 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).
As a certified reference material (CRM), Methyl 4-methoxy-2,5-dihydrothiophene-3-carboxylate 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 | C7H10O3S |
| Molecular Weight | 174.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1963 |
| Sulfur Atoms | 1 |
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Recommended Standards
- Methyl 3-oxotetrahydro-2H-thiopyran-2-carboxylate (CAS 38555-41-8)
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- Methyl 5-methyl-4-oxotetrahydrothiophene-3-carboxylate (CAS 66319-07-1)
- Methyl 3-(1-Aminoethyl)benzoate Hydrochloride (CAS 1263378-68-2)
- 4-Methoxy-2-oxocyclohex-3-en-1-yl acetate (CAS 366024-06-8)
- 6-Amino-1-benzyl-3,4-dihydroquinolin-2(1h)-one (CAS 68032-30-4)
- N-Benzylstearamide (CAS 5327-45-7)
- 7-Hydroxy-hexahydropyrrolo[1,2-c][1,3]oxazol-3-one (CAS 151594-05-7)
- Valproic Acid Impurity 72 (CAS 143100-15-6)
- 1,3-Dioxo-7-(4-phenoxybenzyl)hexahydroimidazo[1,5-a]pyrazin-2(3H)-yl 4-(4-methoxyphenyl)piperazine-1-carboxylate (CAS 1831135-56-8)
- 2H-Pyran, tetrahydro-3-(phenylmethyl)- (CAS 60466-73-1)
- 2-(Furan-2-yl)-5-{[(2E)-3-phenylprop-2-en-1-yl]sulfanyl}-1,3,4-oxadiazole (CAS 477846-90-5)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
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