2-Ethynyl-5-isopropylthiophene CAS 2304404-81-5
| CAS No. | 2304404-81-5 |
| Molecular Formula | C9H10S |
| Molecular Weight | 150.24 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-Ethynyl-5-isopropylthiophene.
CATO supplies 2-Ethynyl-5-isopropylthiophene (CAS 2304404-81-5), a certified reference material (molecular formula C9H10S, MW 150.24 g/mol) for analytical method development and quality control.
Structurally, 2-Ethynyl-5-isopropylthiophene (C9H10S) contains sulfur-containing functionality, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 150.24 g/mol, it falls into the medium-molecular-weight range. 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.
CATO manufactures 2-Ethynyl-5-isopropylthiophene 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 | C9H10S |
| Molecular Weight | 150.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Sulfur Atoms | 1 |
Related Ethynyl Standards
- 1-ethynyl-4-(propan-2-yl)cyclohexane (CAS 1866646-62-9)
- 1-ethynyl-2,4,5-trimethyl-benzene 1-ethynyl-2,4,5-trimethylbenzene 351002-92-1 A822549 (CAS 351002-92-1)
- 4-ethynyl-1H-indazole (CAS 1093847-83-6)
- 4-ethynyl-1H-pyrrolo[2,3-b]pyridine (CAS 1174297-28-9)
- 3-ethynyl-1H-pyrrolo[2,3-b]pyridine (CAS 1380307-98-1)
- 3-ethynyl-1H-indazole (CAS 1383705-71-2)
- 2-ethynyl-1H-pyrrolo[2,3-b]pyridine (CAS 1485294-64-1)
- 7-ethynyl-1H-indazole (CAS 945761-99-9)
Recommended Standards
- 2,5-Dimethyl-6H-cyclopenta[b]thiophene (CAS 577995-23-4)
- 4-Cyclopropylbenzenethiol (CAS 54997-86-3)
- 2,3-dihydro-1H-inden-5-yl hydrosulfide (CAS 55119-14-7)
- Allyl(phenyl)sulfane (CAS 5296-64-0)
- 6-((Tetrahydro-2H-pyran-2-yl)methoxy)nicotinic acid (CAS 1016735-31-1)
- 3-Methoxydiphenylamine (CAS 101-16-6)
- 5-(tert-Butoxy)-4-cyclopropoxy-2-isopropoxypyridine (CAS 1243287-57-1)
- 1-Cyclohexyl-1H-benzo[d]imidazole (CAS 91820-88-1)
- Methyl 2-fluoro-5-iodo-4-methylbenzoate (CAS 1427195-21-8)
- (R)-N-(1-(4-(chloromethyl)phenyl)ethyl)acetamide (CAS 223514-71-4)
- 3-TERT-BUTYL-1-CYCLOHEXYL-1-(6-HYDROXYHEXYL)UREA (CAS 1462829-66-8)
- Dicyclohexylammonium (R)-2-((tert-butoxycarbonyl)amino)-4-methylpent-4-enoate (CAS 1217776-08-3)
- 7-Methoxy-1-methyl-5,6-diphenyl-1H-indol-4-yl acetate (CAS 99107-56-9)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com