5-Bromo-4-nitrothiophene-2-sulfonamide CAS 64729-06-2
| CAS No. | 64729-06-2 |
| Molecular Formula | C4H3BrN2O4S2 |
| Molecular Weight | 287.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 287.11 g/mol gives 5-Bromo-4-nitrothiophene-2-sulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-4-nitrothiophene-2-sulfonamide (CAS 64729-06-2), molecular formula C4H3BrN2O4S2 and molecular weight 287.11 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Bromo-4-nitrothiophene-2-sulfonamide (C4H3BrN2O4S2) is characterized by a carbohydrate-derived structure, an amide group, a sulfone group, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Bromo-4-nitrothiophene-2-sulfonamide 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 | C4H3BrN2O4S2 |
| Molecular Weight | 287.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Bromo Standards
- 5-Bromo-2-morpholinonicotinicacid (CAS 1017783-03-7)
- 3-(8-Bromo-2,3-dihydrobenzo[b][1,4]dioxin-6-yl)propanoic acid (CAS 1094381-71-1)
- N-(6-Bromo-2-methoxypyridin-3-yl)-N-(2-oxopropyl)formamide (CAS 1123194-97-7)
- 5-Bromo-6-methoxychromane-3-carboxylic acid (CAS 1170270-79-7)
- Ethyl 2-(2-bromo-6-formylphenoxy)acetate (CAS 1187385-79-0)
- Ethyl 2-(5-bromo-2-methoxyphenyl)-2-oxoacetate (CAS 1191261-77-4)
- 1-(5-Bromo-3-nitropyridin-2-yl)piperazine (CAS 1203499-08-4)
- 1-(3-Bromo-5-nitropyridin-2-yl)piperazine (CAS 1216144-33-0)
Recommended Standards
- 5-Bromo-2-morpholinonitrobenzene (CAS 90841-34-2)
- 7-(2-Bromoethyl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione (CAS 23146-05-6)
- 5-Bromo-2-ethoxy-4-formylphenyl acetate (CAS 834907-56-1)
- Brallobarbital (CAS 561-86-4)
- Fmoc-Asn(Trt)-Thr(Psi(Me,Me)pro)-OH (CAS 957780-59-5)
- 5H-Cyclopenta[d][1,2,4]triazolo[1,5-a]pyrimidin-8-ol (CAS 115761-34-7)
- 1-(1H-Indazol-3-yl)ethanol (CAS 98952-79-5)
- Methyl 3-(azetidin-3-ylsulfonyl)propanoate (CAS 1706428-75-2)
- 5-chloropyrazine-2,3-dicarbonitrile (CAS 72111-57-0)
- 2-Methyl-2-(S-methylsulfonimidoyl)propane (CAS 1085526-21-1)
- 2'-Methyl-[1,1'-biphenyl]-2-amine hydrochloride (CAS 1203-42-5)
- 4-(4-Chlorobenzyl)benzene-1,3-diol (CAS 6280-43-9)
- 4-[(2-Chloro-4-formyl-6-methoxyphenoxy)methyl]benzoic acid (CAS 428826-63-5)
- Peptide 431 (CAS CATO-CPTD788431)
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