4-bromo-2-nitro-thiophene CAS 85598-49-8
| CAS No. | 85598-49-8 |
| Molecular Formula | C4H2BrNO2S |
| Molecular Weight | 208.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-bromo-2-nitro-thiophene 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.
4-bromo-2-nitro-thiophene (CAS 85598-49-8), molecular formula C4H2BrNO2S and molecular weight 208.03 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 4-bromo-2-nitro-thiophene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.03 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.
Physical & Chemical Properties
| Molecular Formula | C4H2BrNO2S |
| Molecular Weight | 208.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1981 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related bromo Standards
- 3-bromo-1,2-thiazole-4-carboxylic acid (CAS 1309469-83-7)
- 2-Bromo-5-nitrothiophene (CAS 13195-50-1)
- 4-Bromo-1-(2-fluoroethyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 1427021-94-0)
- 2-Bromo-3-nitrothiophene (CAS 2161-96-8)
- 2-Bromo-5-thiazolecarboxylic acid (CAS 54045-76-0)
- 3-Bromo-2-nitrothiophene (CAS 24430-27-1)
- 3-BRomo-4-nitrothiophene (CAS 39920-21-3)
- 4-Bromo-1,3-thiazole-2-carboxylic acid (CAS 88982-82-5)
Recommended Standards
- 4-Bromoisothiazole-3-carboxylic Acid (CAS 4576-88-9)
- 4-Bromoisothiazole-5-carboxylic acid (CAS 88982-81-4)
- 5-Bromoisothiazole-3-carboxylic acid (CAS 4576-89-0)
- 2-Bromothiazole-4-carboxylic acid (CAS 5198-88-9)
- 2-CHloro-4-(imidazol-1-yl)benzyl alcohol (CAS 1694855-13-4)
- Tert-butyl 3-(2-chloronicotinamido)piperidine-1-carboxylate (CAS 1353964-95-0)
- Ethyl 5-benzoyl-2-(4-phenylpiperazin-1-yl)-1H-pyrrole-3-carboxylate (CAS 338758-10-4)
- (2,6-Dichloro-4-(trifluoromethyl)-phenyl)hydrazine hydrochloride (CAS 111788-75-1)
- 4-Nitrobenzyl 9,10-dipropoxyanthracene-2-sulfonate (CAS 144146-37-2)
- (<I>S</I>)-(+)-1-[(<I>R</I>)-2-(diphenylphosphine)ferrocene]ethyldicyclohexylphosphine (CAS 162291-02-3)
- (1R,4R,5R)-1-(furan-2-yl)bicyclo[2.1.1]Hexane-5-carboxylic acid (CAS 2187426-36-2)
- (2,4-Dichloro-5-isopropoxyphenyl)hydrazine (CAS 40178-22-1)
- 3-(2,6-Dimethoxypyrimidin-4-yl)benzaldehyde (CAS 210115-38-1)
- Liraglutide Impurity 15 TFA Salt (CAS CATO-C4X-199215)
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