5-Chlorobenzo[c]isothiazol-3-yl benzoate CAS 63285-90-5
| CAS No. | 63285-90-5 |
| Molecular Formula | C14H8ClNO2S |
| Molecular Weight | 289.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 5-Chlorobenzo[c]isothiazol-3-yl benzoate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 289.74 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-Chlorobenzo[c]isothiazol-3-yl benzoate (CAS 63285-90-5), molecular formula C14H8ClNO2S and molecular weight 289.74 g/mol, is a CATO reference standard with documented purity and traceability.
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.
CATO manufactures 5-Chlorobenzo[c]isothiazol-3-yl benzoate 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.
Physical & Chemical Properties
| Molecular Formula | C14H8ClNO2S |
| Molecular Weight | 289.74 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorobenzo Standards
- 1-(4-(5-Chlorobenzo[c]isoxazol-3-yl)-3,5-dimethyl-1H-pyrazol-1-yl)ethan-1-one (CAS 60354-20-3)
- 3-(6-Chlorobenzo[d]thiazol-2-yl)-N,N-dimethylpyridin-2-amine (CAS 400075-91-4)
- (3-(4-Chlorobenzo[d]thiazol-2-yl)phenyl)boronic acid (CAS 1076232-78-4)
- Ethyl ((5-chlorobenzo[b]thiophen-3-yl)methyl)(methyl)phosphinate (CAS 862094-19-7)
- (7-Chlorobenzo[b]oxepin-4-yl)(morpholino)methanone (CAS 950284-98-7)
- Methyl 2-(5-chlorobenzo[d]oxazol-2-yl)benzoate (CAS 108500-46-5)
- 5-(3-Chlorobenzo[b]thiophen-2-yl)-1,3,4-oxadiazol-2-ol (CAS 24606-50-6)
- 6-Chlorobenzo[a]pyrene (CAS 21248-01-1)
Recommended Standards
- 4-Cyclopropaneamido-2-methoxybenzene-1-sulfonyl chloride (CAS 926187-74-8)
- 6-Chloro-2-(thiophen-2-yl)quinoline-4-carboxylic acid (CAS 33289-51-9)
- 4-Chloro-3-[3-(4-methoxy-phenyl)-3-oxo-propionylemino]-benzoic-aciddodecylester (CAS 33942-96-0)
- N-(benzo[d]thiazol-2-yl)-2-chloronicotinamide (CAS 85678-85-9)
- Methyl (R)-2-(((benzyloxy)carbonyl)amino)-3-(bicyclo[1.1.1]pentan-1-yl)propanoate (CAS 2322929-20-2)
- 8-Chloro-2-(2,5-dimethoxyphenyl)quinoline-4-carbonyl chloride (CAS 1160256-54-1)
- 2-Bromo-1-(2-bromo-4,5-dimethoxyphenyl)ethanone (CAS 321681-28-1)
- 7-Benzyl-6-(benzylthio)-7H-purine (CAS 21186-47-0)
- 4-Chloro-N-((tetrahydro-2h-pyran-4-yl)methyl)aniline (CAS 1248352-73-9)
- N'-(diphenylmethylene)-2-(methylamino)acetohydrazide (CAS 341968-05-6)
- 2-(6-(Tert-butyl)-3-oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)acetic acid (CAS 876717-54-3)
- 2-(4-Fluorophenyl)tetrahydro-2H-pyran-4-amine hydrochloride (CAS 1461709-20-5)
- 5-(tert-Butyl)-2-propoxybenzene-1-sulfonyl chloride (CAS 681260-21-9)
- FMRF-Like Peptide from snail Helix aspersa (CAS 98495-35-3)
Why CATO?
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