2-Chloro-7-nitro-1,3-benzothiazole CAS 2942-22-5
| CAS No. | 2942-22-5 |
| Molecular Formula | C7H3ClN2O2S |
| Molecular Weight | 214.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 2-Chloro-7-nitro-1,3-benzothiazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
2-Chloro-7-nitro-1,3-benzothiazole (CAS 2942-22-5), molecular formula C7H3ClN2O2S and molecular weight 214.63 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-Chloro-7-nitro-1,3-benzothiazole (C7H3ClN2O2S) is characterized by an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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. 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 | C7H3ClN2O2S |
| Molecular Weight | 214.63 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 DMSO, DMF, methanol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 5-chloro-4-nitro-1,3-benzothiazole (CAS 1087792-31-1)
- 4-Chloro-3-nitrophenyl isothiocyanate (CAS 127142-66-9)
- 1-Chloro-2-nitro-4-thiocyanatobenzene (CAS 89642-54-6)
- 1-Chloro-3-diethoxyphosphoryl-propane (CAS 23269-98-9)
- 2-Chloro-4-nitrobenzothiazole (CAS 3507-30-0)
- 2-chloro-5-nitrobenzo[d]thiazole (CAS 3622-38-6)
- 2-Chloro-5-nitrophenyl isothiocyanate (CAS 57135-68-9)
- 2-Chloro-6-nitrobenzothiazole (CAS 2407-11-6)
Recommended Standards
- 4-Chloro-5-nitrobenzo[d]thiazole (CAS 2411087-55-1)
- 4-Chlorothieno[2,3-d]pyrimidine-6-carboxylic Acid (CAS 86825-96-9)
- 4-Chlorothieno[3,2-d]pyrimidine-6-carboxylic Acid (CAS 875515-76-7)
- 5-Chloro-6-nitrobenzo[d]thiazole (CAS 85123-28-0)
- 4-Propylimidazolidin-2-one (CAS 168092-17-9)
- 1,5-Dibromo-2,4-diiodobenzene (CAS 96843-23-1)
- Methyl 4-hydroxyquinoline-6-carboxylate (CAS 948571-56-0)
- N-(5-Bromopyridin-2-yl)acetohydrazide (CAS 1199773-29-9)
- 2-(tert-Butoxy)phenylboronic Acid Pinacol Ester (CAS 2304635-80-9)
- Fluorescein Impurity 5 (CAS 7262-41-1)
- 1-tert-butoxycarbonyl-5-hydroxy-piperidine-2-carboxylic acid (CAS 131950-00-0)
- Propyl 4-(2-methoxy-2-oxoethoxy)benzoate (CAS 1212060-80-4)
- 2-Carbamoyl-6-nitrobenzoic Acid (CAS 65911-46-8)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
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