(5-Bromothiophen-2-yl)methanesulfonamide CAS 1178026-05-5
| CAS No. | 1178026-05-5 |
| Molecular Formula | C5H6BrNO2S2 |
| Molecular Weight | 256.14 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 (5-Bromothiophen-2-yl)methanesulfonamide.
CATO supplies (5-Bromothiophen-2-yl)methanesulfonamide (CAS 1178026-05-5), a certified reference material (molecular formula C5H6BrNO2S2, MW 256.14 g/mol) for analytical method development and quality control.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, (5-Bromothiophen-2-yl)methanesulfonamide is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 256.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (5-Bromothiophen-2-yl)methanesulfonamide 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 | C5H6BrNO2S2 |
| Molecular Weight | 256.14 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Bromothiophen Standards
- n-(3-Bromothiophen-2-yl)methanesulfonamide (CAS 1249999-59-4)
- (2-bromothiophen-3-yl)methanesulfonamide (CAS 1935385-10-6)
- 2-(5-Bromothiophen-2-yl)pyrimidin-5-amine (CAS 1094373-80-4)
- 6-(5-Bromothiophen-2-yl)pyridazin-3-amine (CAS 1226154-37-5)
- 4-(5-Bromothiophen-2-yl)pyrimidin-2-amine (CAS 855308-66-6)
- 2-(4-bromothiophen-3-yl)-2,2-difluoroacetic acid (CAS 1518974-67-8)
- 2-(4-Bromothiophen-2-yl)pyrimidin-4(3H)-one (CAS 1156236-70-2)
- 3-(5-Bromothiophen-2-yl)-1h-pyrazole-4-carbaldehyde (CAS 1179126-73-8)
Recommended Standards
- N-(4-bromophenyl)tetrahydro-2H-pyran-4-amine (CAS 1157008-75-7)
- 2-(3-Bromo-4-methoxyphenyl)pyrrolidine (CAS 1178263-39-2)
- n-(2-Bromophenyl)tetrahydro-2h-pyran-4-amine (CAS 1154890-16-0)
- 1-(3-Bromo-5-methylpyridin-2-yl)piperazine (CAS 1187386-35-1)
- 1-(1,8-Naphthyridin-2-yl)cyclopropanamine (CAS 1159878-00-8)
- 2-cyano-N-(2-pyrazinyl)acetamide (CAS 90158-75-1)
- 1-(2-(Isopropylselanyl)-3-phenylcyclobut-2-en-1-yl)ethanone (CAS 820963-09-5)
- 6-Chloro-2-cyclohexyl-2,3-dihydro-1,3-dioxo-1H-isoindole-5-sulfonamide (CAS 3822-99-9)
- N-(Benzo[d]thiazol-6-yl)-1-naphthamide (CAS 923069-85-6)
- 2-(4-Chloro-2-fluoro-5-(2-methoxyethoxy)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1256360-21-0)
- (3-Bromo-4-methylpyridin-2-yl)methanamine (CAS 1443288-53-6)
- (S)-2-amino-N-methyl-N-((3-methylthiophen-2-yl)methyl)propanamide (CAS 1307482-11-6)
- 3-(Piperidin-1-ylmethyl)pyridine (CAS 13552-35-7)
- D-Gln19-Tirzepatide (CAS CATO-CPTD788915)
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