5-ethylthiophene-3-carbaldehyde CAS 34669-00-6
| CAS No. | 34669-00-6 |
| Molecular Formula | C7H8OS |
| Molecular Weight | 140.20 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 5-ethylthiophene-3-carbaldehyde.
5-ethylthiophene-3-carbaldehyde (CAS 34669-00-6) is a high-purity analytical reference standard with the molecular formula C7H8OS and a molecular weight of 140.20 g/mol.
Owing to sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system, 5-ethylthiophene-3-carbaldehyde is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 140.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 5-ethylthiophene-3-carbaldehyde 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 | C7H8OS |
| Molecular Weight | 140.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
| Sulfur Atoms | 1 |
Related ethylthiophene Standards
- 2-Ethylthiophene-3-carbaldehyde (CAS 156386-50-4)
- 4-Ethylthiophene-3-carbaldehyde (CAS 197724-05-3)
- 3-Ethylthiophene-2-carbaldehyde (CAS 21426-07-3)
- 5-Ethylthiophene-2-carbaldehyde (CAS 36880-33-8)
- 4-Ethylthiophene-3-carbonitrile (CAS 1469176-03-1)
- 2-Ethylthiophene-3-carbonitrile (CAS 500024-70-4)
- 5-Ethylthiophene-2-carbonitrile (CAS 22552-53-0)
- 5-Ethylthiophene-2-thiol (CAS 53381-57-0)
Recommended Standards
- 9-Azabicyclo[3.3.1]nonane n-oxyl (CAS 31785-68-9)
- 5,6-Dihydro-4H-cyclopenta[b]thiophen-4-ol (CAS 954238-22-3)
- Phenol, m-(methylthio)- (CAS 3463-03-4)
- 4-Mercaptobenzyl Alcohol (CAS 53339-53-0)
- 1-(3,4-Difluorophenyl)pentan-2-one (CAS 1443346-15-3)
- Benzyl ((1-(2-aminoacetyl)pyrrolidin-2-yl)methyl)carbamate (CAS 1353973-66-6)
- Tricyclo[4.3.1.0,3,8]decan-4-amine (CAS 1149588-60-2)
- Tert-butyl 4-fluoro-1,7-diazaspiro[4.4]Nonane-7-carboxylate (CAS 1889138-58-2)
- 1-(4-Chlorobenzoyl)-3-(4-formylpiperazinyl)-thiourea (CAS 1987007-45-3)
- 1-(5-Ethyl-2,4-dihydroxyphenyl)-2-(4-methoxyphenyl)ethan-1-one (CAS 96644-03-0)
- Methyl 2-amino-2-(3-fluoro-4-methoxyphenyl)acetate (CAS 1502556-28-6)
- 1,4-Diamino-2-bromo-3-(4-(pentyloxy)phenoxy)anthracene-9,10-dione (CAS 89868-55-3)
- 2-Bromo-4-difluoromethoxy-3-nitrotoluene (CAS 1805592-41-9)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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