2-Bromo-5-isopropylthiophene CAS 29488-23-1
| CAS No. | 29488-23-1 |
| Molecular Formula | C7H9BrS |
| Molecular Weight | 205.12 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-Bromo-5-isopropylthiophene.
2-Bromo-5-isopropylthiophene (CAS 29488-23-1), molecular formula C7H9BrS and molecular weight 205.12 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, bromine substitution, 2-Bromo-5-isopropylthiophene is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 205.12 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C7H9BrS |
| Molecular Weight | 205.12 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 3-Bromo-4-isopropylthiophene (CAS 1369146-51-9)
- 2-Bromo-5-propylthiophene (CAS 172319-75-4)
- 3-Bromo-4-propylthiophene (CAS 187661-10-5)
- 2-Bromo-3-isopropylthiophene (CAS 29488-36-6)
- 3-Bromo-2,4,5-trimethylthiophene (CAS 39129-53-8)
- 3-Bromo-2-isopropylthiophene (CAS 2363782-33-4)
- 4-Bromo-2-propylthiophene (CAS 36155-79-0)
- 1-Bromo-3-isopropyl-4-methylpent-2-ene (CAS 1115-21-5)
Recommended Standards
- 2-(Bromomethyl)-5-ethylthiophene (CAS 442910-38-5)
- 2-(3-Bromopropyl)thiophene (CAS 30134-51-1)
- 2-(4-(Trifluoromethyl)pyridin-2-yl)acetic acid (CAS 1000515-78-5)
- 6-Amino-5-(difluoromethyl)-4-nitropyridin-3-ol (CAS 1806840-47-0)
- Cyclopeptine (CAS 50886-63-0)
- (S)-2-((3-Chlorophenoxy)methyl)oxirane (CAS 129098-53-9)
- 9-(3-(Isopropylamino)propyl)-9H-fluorene-9-carboxamide (CAS 74517-78-5)
- tert-Butyl 6-methyl-3,4-dihydroquinoxaline-1(2H)-carboxylate (CAS 887590-77-4)
- Methyl 3-(4-methoxybenzamido)thiophene-2-carboxylate (CAS 544656-81-7)
- Alfuzosin-d (CAS 1006717-24-3)
- 4-(((1-(sec-Butyl)-1H-pyrazol-3-yl)amino)methyl)benzene-1,3-diol hydrochloride (CAS 1855950-17-2)
- 5-Iodo-2-nitrobenzoic acid (CAS 35674-28-3)
- 5-(Furan-2-yl)-1,2-oxazole-4-carboxylic acid (CAS 1423032-14-7)
- Peptide Impurity 41 (CAS CATO-CPTD788841)
Why CATO?
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