4-Methoxythiophene-3-carbaldehyde CAS 82069-74-7
| CAS No. | 82069-74-7 |
| Molecular Formula | C6H6O2S |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methoxythiophene-3-carbaldehyde (CAS 82069-74-7), molecular formula C6H6O2S and molecular weight 142.18 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Methoxythiophene-3-carbaldehyde (C6H6O2S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 142.18 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 4-Methoxythiophene-3-carbaldehyde 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 | C6H6O2S |
| Molecular Weight | 142.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Sulfur Atoms | 1 |
Related Methoxythiophene Standards
- 3-Methoxythiophene-2-carbaldehyde (CAS 35134-07-7)
- 4-Methoxythiophene-2-carbaldehyde (CAS 98316-32-6)
- 5-Methoxythiophene-3-carbaldehyde (CAS 78395-10-5)
- 3-Methoxythiophene-2-carbonitrile (CAS 57059-18-4)
- 5-Methoxythiophene-2-carbonitrile (CAS 58703-25-6)
- 2-methoxythiophene-3-carbaldehyde (CAS 41057-07-2)
- 4-Methoxythiophene-2-thiol (CAS 1082350-78-4)
- (E)-3-methoxythiophene-2-carbaldehyde oxime (CAS 1824827-05-5)
Recommended Standards
- 4-Methyl-1,3-thiazole-2-carboxamide (CAS 760201-86-3)
- 4-Mercaptobenzene-1,3-diol (CAS 2553-70-0)
- 5-(Hydroxymethyl)thiophene-2-carbaldehyde (CAS 53821-57-1)
- 4-Mercaptobenzene-1,2-diol (CAS 27320-22-5)
- N-(Anthracen-9-ylmethylene)aniline (CAS 796-34-9)
- 3,5-Di(1-pyrenyl)pyridine (CAS 1246467-58-2)
- 5-Methyl-2-nitrobenzene-1-sulfonyl chloride (CAS 173908-60-6)
- Methyl 3,4-diaminobenzoate hydrochloride (CAS 1210824-92-2)
- 3-(2-Fluorophenyl)-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 721418-45-7)
- 2,4-Dimethyl-2,5-dihydrothiophene 1,1-dioxide (CAS 10033-92-8)
- 4,4'-Dibromo-2,2',6,6'-tetramethyl-1,1'-biphenyl (CAS 22409-76-3)
- 1-(2-(Methylthio)benzo[d]oxazol-4-yl)ethanone (CAS 1806425-56-8)
- 5-(4-Methoxyphenyl)-5-phenylimidazolidine-2,4-dione (CAS 17816-50-1)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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