ESABr CAS 42954-15-4
| CAS No. | 42954-15-4 |
| Molecular Formula | HBr |
| Molecular Weight | N/A |
| 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 ESABr.
CATO supplies ESABr (CAS 42954-15-4), a certified reference material (molecular formula HBrC2H7NS, MW 158.06 g/mol) for analytical method development and quality control.
The molecular framework of ESABr (HBrC2H7NS) is characterized by sulfur-containing functionality, 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.
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), ESABr 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 | HBr C2H7NS |
| Molecular Weight | 158.06 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
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- 2-Amino-6-chloro-4-(cyanomethyl)pyridine-3,5-dicarbonitrile (CAS 19858-57-2)
- ethyl 3-amino-1H-pyrazole-5-carboxylate (CAS 1886994-04-2)
- 2-(Thiophen-2-yl)propanoyl chloride (CAS 273933-03-2)
- 1-(3,4-Dimethoxyphenyl)-2-(pyridin-3-yl)ethan-1-one (CAS 99466-39-4)
- 4-Chloro-3-phenyl-1H-indazole (CAS 13097-02-4)
- N-(4-Aminophenyl)-2,6-dichlorobenzamide (CAS 1018457-96-9)
- cis,trans-(1,1-Dimethylethoxy)carbonyl Tranexamic Acid Methyl Ester-13C2,15N (CAS 1346600-88-1)
- Osteoblast-Adhesive Peptide (CAS 193613-75-1)
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