2-Chlorobenzo[d]thiazole-7-carboxylic acid CAS 1379324-66-9
| CAS No. | 1379324-66-9 |
| Molecular Formula | C8H4ClNO2S |
| Molecular Weight | 213.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H4ClNO2S, 2-Chlorobenzo[d]thiazole-7-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 213.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-Chlorobenzo[d]thiazole-7-carboxylic acid (CAS 1379324-66-9) is a high-purity analytical reference standard with the molecular formula C8H4ClNO2S and a molecular weight of 213.64 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H4ClNO2S |
| Molecular Weight | 213.64 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorobenzo Standards
- 2-Chlorobenzo[d]thiazole-4-carboxylic acid (CAS 1260529-68-7)
- 2-Chlorobenzo[d]thiazole-5-carboxylic acid (CAS 1393576-38-9)
- 3-Chlorobenzo[d]isothiazole-6-carboxylic acid (CAS 1520779-76-3)
- 4-Chlorobenzo[d]thiazole-2-carboxylic acid (CAS 3622-02-4)
- 6-Chlorobenzo[d]isothiazole-3-carboxylic acid (CAS 50789-16-7)
- 6-Chlorobenzo[d]thiazole-2-carboxylic acid (CAS 3622-03-5)
- 7-Chlorobenzo[d]isothiazole-3-carboxylic acid (CAS 50789-17-8)
- 2-(7-Chlorobenzo[d][1,3]dioxol-5-yl)-N-methylethan-1-amine (CAS 1341303-02-3)
Recommended Standards
- 3-Chlorothieno[3,2-b]pyridine-2-carboxylic acid (CAS 1379299-75-8)
- 4-Chlorothieno[2,3-b]pyridine-2-carboxylic acid (CAS 1379335-94-0)
- 4-(4-Chloro-2-fluorophenoxy)butanenitrile (CAS 1378882-08-6)
- 4-(2-Chloro-5-fluorophenoxy)butanenitrile (CAS 1379351-38-8)
- 5-Bromo-2,3,4-trimethoxybenzaldehyde (CAS 28006-94-2)
- 2-(4,7-Dichloro-2-methyl-1H-indol-3-yl)ethan-1-amine hydrochloride (CAS 1049739-06-1)
- 1,4-Dichloro-2-(2-nitroethyl)benzene (CAS 1017081-92-3)
- 2-Phenyl-2,7-diazaspiro[4.4]Nonane dihydrochloride (CAS 1187930-60-4)
- Methyl 5-(4-chloro-3-fluorophenyl)nicotinate (CAS 893734-89-9)
- 3-(4-Hydroxyphenyl)-2H-chromen-2-one (CAS 6468-98-0)
- (S)-1-(Ethylamino)-2-propanol Hydrochloride (CAS 1807940-46-0)
- Abiraterone Impurity 47 (CAS CATO-C4X-107047)
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