4-(Benzo[d]thiazol-2-ylthio)-3-nitrobenzyl (2,4-dichlorophenyl)carbamate CAS 338393-83-2
| CAS No. | 338393-83-2 |
| Molecular Formula | C21H13Cl2N3O4S2 |
| Molecular Weight | 506.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Benzo[d]thiazol-2-ylthio)-3-nitrobenzyl (2,4-dichlorophenyl)carbamate (CAS 338393-83-2) is a high-purity analytical reference standard with the molecular formula C21H13Cl2N3O4S2 and a molecular weight of 506.38 g/mol.
4-(Benzo[d]thiazol-2-ylthio)-3-nitrobenzyl (2,4-dichlorophenyl)carbamate (C21H13Cl2N3O4S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C21H13Cl2N3O4S2 |
| Molecular Weight | 506.38 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
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Recommended Standards
- TC-S 7004 (CAS 1386979-55-0)
- (2S,4R)-1-(((9H-Fluoren-9-yl)methoxy)carbonyl)-4-(4-bromobenzyl)pyrrolidine-2-carboxylic acid (CAS 959580-40-6)
- 4-[(E)-[(3,4,5-Trimethoxyphenyl)methylidene]amino]phenyl 4-bromobenzene-1-sulfonate (CAS 329777-91-5)
- Metaflumizone (CAS 139968-49-3)
- Methyl 1-butyl-2-oxo-1,2-dihydropyridine-4-carboxylate (CAS 1203544-13-1)
- 2-Methyl-6-(trifluoromethyl)imidazo[2,1-b]thiazole-5-carboxamide (CAS 1823312-79-3)
- 4-Hydroxy-1-(4-piperidyl)pyrrolidin-2-one Hydrochloride (CAS 1237840-39-9)
- 3-Acetyl-5-(trifluoromethyl)pyridin-2(1H)-one (CAS 1260667-29-5)
- N-(4-Fluorobenzyl)-1-(1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methanamine hydrochloride (CAS 1856073-35-2)
- Lusutrombopag Impurity 28 (CAS CATO-C4X-208428)
- 2-Bromo-4-nitro-6-(trifluoromethyl)aniline (CAS 400-66-8)
- Methyl 4-Oxohexanoate (CAS 2955-62-6)
- (3R,4R)-1-(tert-butoxycarbonyl)-4-(2,4-difluorophenyl)-3-fluoropyrrolidine-3-carboxylic acid (CAS 2098740-27-1)
- Semaglutide impurity 250 (CAS CATO-C4X-2226250)
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