3-acetamido-4-hydroxybenzene-1-sulfonyl chloride CAS 81593-03-5
| CAS No. | 81593-03-5 |
| Molecular Formula | C8H8ClNO4S |
| Molecular Weight | 249.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-acetamido-4-hydroxybenzene-1-sulfonyl chloride.
3-acetamido-4-hydroxybenzene-1-sulfonyl chloride (CAS 81593-03-5) is a high-purity analytical reference standard with the molecular formula C8H8ClNO4S and a molecular weight of 249.67 g/mol.
3-acetamido-4-hydroxybenzene-1-sulfonyl chloride (C8H8ClNO4S) contains a nitrogen-containing heterocyclic scaffold, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 3-acetamido-4-hydroxybenzene-1-sulfonyl chloride meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H8ClNO4S |
| Molecular Weight | 249.67 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related acetamido Standards
- 5-Acetamido-2-hydroxybenzene-1-sulfonyl chloride (CAS 81593-07-9)
- 2-Acetamido-3-(4-isopropylphenyl)propanoic acid (CAS 98698-15-8)
- 2-Acetamido-N-(2-(dimethylamino)ethyl)benzamide (CAS 947822-29-9)
- 5-Acetamido-2-bromo-1,3-difluorobenzene (CAS 541539-64-4)
- (2R)-2-Acetamido-3-((2-carboxypropyl)thio)propanoic acid (CAS 73614-35-4)
- Methyl 4-Acetamido-3-allyl-2-hydroxybenzoate (CAS 110751-41-2)
- Ethyl 2-acetamido-2-deoxy-β-D-glucopyranoside (CAS 2495-96-7)
- 2-Acetamido-3-(4-nitrophenyl)acrylic acid (CAS 70973-01-2)
Recommended Standards
- 3,6-dimethyl-2-nitrobenzene-1-sulfonyl chloride (CAS 62564-54-9)
- 3-Chloro-4-methyl-5-sulfamoylbenzoic acid (CAS 62971-72-6)
- 3,4-Dimethyl-5-nitrobenzene-1-sulfonyl chloride (CAS 873208-62-9)
- 3-Chloro-N-(4-fluorophenyl)benzamide (CAS 33489-31-5)
- 2-(2-(3,4-Dimethoxyphenyl)acetyl)-N-methylhydrazine-1-carbothioamide (CAS 329779-69-3)
- 1-(6-Chloro-9H-purin-9-yl)-1-deoxy-2,3-O-(1-methylethylidene)-b-D-Ribofuranuronoyl chloride (CAS 104940-65-0)
- Resorufinbutyrate (CAS 15585-42-9)
- 4-Bromo-3-(difluoromethyl)pyridine-2-carboxaldehyde (CAS 1806779-91-8)
- Tert-butyl 4-(cyclobutanecarboxamido)piperidine-1-carboxylate (CAS 1197980-74-7)
- (4-Bromo-1h-pyrrol-2-yl)(4-(methylsulfonyl)piperazin-1-yl)methanone (CAS 1183079-69-7)
- 3-Cyclopropoxy-5-ethyl-N,N-dimethylaniline (CAS 1243443-54-0)
- 2-Chloro-5-(2,3-dimethylbenzoyl)pyridine (CAS 1187168-10-0)
- Ilaprazole Impurity 212 (CAS CATO-C4X-1130212)
- (Leu31,Pro3?)-Neuropeptide Y (human, rat) trifluoroacetate salt (CAS 132699-73-1)
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