3-Bromo-5-(ethylcarbonyl)-2-methylthiophene CAS 887576-01-4
| CAS No. | 887576-01-4 |
| Molecular Formula | C8H9BrOS |
| Molecular Weight | 233.13 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.
CATO supplies 3-Bromo-5-(ethylcarbonyl)-2-methylthiophene (CAS 887576-01-4), a certified reference material (molecular formula C8H9BrOS, MW 233.13 g/mol) for analytical method development and quality control.
Structurally, 3-Bromo-5-(ethylcarbonyl)-2-methylthiophene (C8H9BrOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, 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 233.13 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).
As a certified reference material (CRM), 3-Bromo-5-(ethylcarbonyl)-2-methylthiophene 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 | C8H9BrOS |
| Molecular Weight | 233.13 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| 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.) | 1987 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 4-Bromo-2-(pyrrolidin-1-yl)-1,3-thiazole (CAS 1017781-56-4)
- 2-(3-Bromo-phenylsulfanyl)-ethanol (CAS 1098108-96-3)
- 5-Bromo-2-(pyrrolidin-3-yl)thiazole (CAS 1159821-16-5)
- 5-Bromo-2-(propylthio)pyrimidine (CAS 1199773-23-3)
- 2-Bromo-1-(2,5-dimethylthiophen-3-yl)ethan-1-one (CAS 122654-17-5)
- 2-Bromo-5-methyl-4,5,6,7-tetrahydrothiazolo[4,5-c]pyridine (CAS 1280704-26-8)
- 2-Bromo-5-cyclopentyl-1,3,4-thiadiazole (CAS 1343306-02-4)
- 2-Bromo-4,5,6,7-tetrahydrobenzo[d]thiazol-6-amine (CAS 1379295-90-5)
Recommended Standards
- 3-(3,5-Dichlorophenyl)pentan-3-ol (CAS 76481-40-8)
- 4-(Difluoromethoxy)-3-nitrobenzoic acid (CAS 906747-90-8)
- 2-Bromo-1-methoxy-3-(methylsulfanyl)benzene (CAS 67853-40-1)
- 4-Bromo-2-(methylthio)benzyl Alcohol (CAS 918328-15-1)
- N-(3,4-Dichlorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574585-05-9)
- 2-[(E)-(4-Isopropylanilino)methylidene]-2,3,4,9-tetrahydro-1H-carbazol-1-one (CAS 860612-39-1)
- (R)-(+)-2-Amino-1-fluoro-3-methyl-1,1-diphenylbutane (CAS 400870-24-8)
- 3-chloro-N-{2-chloro-5-[(dimethylamino)sulfonyl]phenyl}propanamide (CAS 851169-33-0)
- 1-(3-Bromophenyl)-3-(2-methoxyethyl)urea (CAS 1197799-45-3)
- 1-(Furan-2-yl)pentan-3-amine (CAS 770-47-8)
- Triethylsulfonium (CAS 29245-61-2)
- Alantolactone (CAS 546-43-0)
- 5-[1-(4-Ethylphenoxy)ethyl]-4-methyl-4H-1,2,4-triazole-3-thiol 669708-93-4 7814AE C13H17N3OS (CAS 669708-93-4)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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