2-bromo-5-chloro-1,3-benzothiazole CAS 2941-56-2
| CAS No. | 2941-56-2 |
| Molecular Formula | C7H11BrClNS |
| Molecular Weight | 256.59 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 2-bromo-5-chloro-1,3-benzothiazole.
2-bromo-5-chloro-1,3-benzothiazole (CAS 2941-56-2) is a high-purity analytical reference standard with the molecular formula C7H11BrClNS and a molecular weight of 256.59 g/mol.
The molecular framework of 2-bromo-5-chloro-1,3-benzothiazole (C7H11BrClNS) is characterized by a nitrile group, sulfur-containing functionality, chlorine/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. 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.
As a certified reference material (CRM), 2-bromo-5-chloro-1,3-benzothiazole 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 | C7H11BrClNS |
| Molecular Weight | 256.59 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) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related bromo Standards
- 3-bromo-7-chlorothieno[2,3-c]pyridine (CAS 1315360-86-1)
- 3-bromo-5-chlorothieno[2,3-c]pyridine (CAS 1326715-11-0)
- 3-bromo-7-chloro-thieno[3,2-b]pyridine (CAS 1334645-51-0)
- 4-bromo-7-chlorothieno[2,3-c]pyridine (CAS 1803571-85-8)
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Recommended Standards
- Methyl 3-chloro-2-fluoro-5-(trifluoromethyl)benzoate (CAS 773874-03-6)
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- 3-Chloro-2-fluoro-6-(trifluoromethyl)phenylacetic acid (CAS 261763-14-8)
- 2-Methyl-4,7,8-trichloroquinoline (CAS 108097-02-5)
- 890591-56-7 3-(4-ethoxyphenyl)-1H-pyrazole-5-carboxylic acid DTXSID10390262 (CAS 890591-56-7)
- 5-Bromo-7H-pyrrolo[2,3-d]pyrimidine-4-carbonitrile (CAS 1168106-92-0)
- Levomepromazine maleate CRS (CAS 7104-38-3)
- Mal-PEG6-NHS ester (CAS 1599472-25-9)
- 2,7-Diphenylbenzo[lmn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetrone (CAS 24259-89-0)
- 3-phenyl-2-(phenylamino)propanoic acid (CAS 23052-05-3)
- (R)-N-(Pyrrolidin-2-ylmethyl)acetamide (CAS 1449273-88-4)
- 4,4,5,5-Tetramethyl-2-(4-methylphenyl)dioxaborolane (CAS 195062-57-8)
- 1-chloro-2-(2,2-diethoxyethoxy)benzene (CAS 105474-73-5)
- Tirzepatide Impurity 17 (CAS CATO-C4X-324017)
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