4-Acetamidobenzene-d4-sulfonyl Chloride CAS 77435-44-0
| CAS No. | 77435-44-0 |
| Molecular Formula | - |
| Molecular Weight | 237.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to deuterium isotope labeling, a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, 4-Acetamidobenzene-d4-sulfonyl Chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 237.70 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO supplies 4-Acetamidobenzene-d4-sulfonyl Chloride (CAS 77435-44-0), a certified reference material (molecular formula C8H4D4ClNO3S, MW 237.70 g/mol) for analytical method development and quality control.
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 | C8H4D4ClNO3S |
| Molecular Weight | 237.70 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 methanol, ethanol, DMSO |
| 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.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Acetamidobenzene Standards
- 2-Acetamidobenzene-1-sulfonyl chloride (CAS 71905-93-6)
- 3-Acetamidobenzene-1-sulfonyl fluoride (CAS 4857-88-9)
- 201741-03-9 Acetamidobenzene-13C6 Acetanil-13C6 Acetanilide-(ring-13C6) Acetanilide-13C6 Acetoanilide-13C6 Acetylaniline-13C6 Antifebrin-13C6 N-(Phenyl-13C6)-acetamide N-Acetyl-benzenamine-13C6 N-Phenyl-acetamide-13C6 NSC 203231-13C6 NSC 7636-13C6 Phenalgene-13C6 Phenalgin-13C6 (CAS 201741-03-9)
- Sodium 3-acetamidobenzene-1-sulfonate (CAS 1080-11-1)
Recommended Standards
- 1-(3-CHloro-4-fluorophenyl)cyclohexanecarbonitrile (CAS 944352-60-7)
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- 1-(2-Chloro-6-fluorophenyl)cyclohexane-1-carbonitrile (CAS 214262-95-0)
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- (S)-1-(3-Methoxyisothiazol-5-yl)ethan-1-ol (CAS 1932795-33-9)
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- Flutimide (CAS 162666-34-4)
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- Biotinyl-CBP501 Affinity Peptide trifluoroacetate salt (CAS 2022956-39-2)
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