2-Acetyl-5-bromothiophene CAS 5370-25-2
| CAS No. | 5370-25-2 |
| Molecular Formula | C6H5BrOS |
| Molecular Weight | 205.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Acetyl-5-bromothiophene 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.
2-Acetyl-5-bromothiophene (CAS 5370-25-2), molecular formula C6H5BrOS and molecular weight 205.07 g/mol, is a CATO reference standard with documented purity and traceability.
2-Acetyl-5-bromothiophene (C6H5BrOS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C6H5BrOS |
| Molecular Weight | 205.07 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.) | 1958 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Acetyl Standards
- 2-Acetyl-4-bromothiophene (CAS 7209-11-2)
- 4-Bromothiophene-2-carboximidamide (CAS 1094293-83-0)
- 5-Bromothiophene-2-carboximidamide (CAS 844496-26-0)
- (E)-5-bromothiophene-3-carbaldehyde oxime (CAS 18791-96-3)
- 5-Bromothiophene-3-carboxamide (CAS 189329-94-0)
- 2-Bromothiophene-3-carboxamide (CAS 189330-06-1)
- (E)-4-bromothiophene-2-carbaldehyde oxime (CAS 31767-01-8)
- 3-Bromothiophene-2-carboxamide (CAS 78031-18-2)
Recommended Standards
- 3-Bromo-5-methylthiophene-2-carbaldehyde (CAS 36155-82-5)
- 2-(5-Bromothiophen-2-yl)acetaldehyde (CAS 722536-02-9)
- 4-Bromo-3-methylthiophene-2-carbaldehyde (CAS 30153-47-0)
- 1-(5-Bromo-3-thienyl)ethanone (CAS 59227-67-7)
- 1-(7-(Benzyloxy)-1H-indol-3-yl)ethan-1-one (CAS 677761-60-3)
- N-(2-Fluorophenyl)-2-{4-oxo-7-phenyl-3H,4H-thieno[3,2-d]pyrimidin-3-yl}acetamide (CAS 1105235-24-2)
- (R)-2-Amino-2-(p-tolyl)acetic acid (CAS 69501-56-0)
- Elagolix Impurity 10 (CAS 581072-15-3)
- 2-Cyclopropoxy-1-ethyl-4-fluorobenzene (CAS 1243358-07-7)
- 1-[2,6-dichloro-4-(trifluoromethyl)phenyl]-1H-pyrrole-2-carboxaldehyde (CAS 259175-25-2)
- (R)-5-Methyl-1,2,3,4-tetrahydronaphthalen-1-amine (CAS 1055321-35-1)
- 3-(2-Methoxyethyl)-2-thioxo-1,3-thiazolidin-4-one (CAS 88850-32-2)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydro-1,8-naphthyridine (CAS 1701460-54-9)
- Exenatide (CAS 141758-74-9（free base）)
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