2,5-Dichlorobenzenesulfonyl isocyanate CAS 7019-16-1
| CAS No. | 7019-16-1 |
| Molecular Formula | C7H3Cl2NO3S |
| Molecular Weight | 252.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2,5-Dichlorobenzenesulfonyl isocyanate 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.
2,5-Dichlorobenzenesulfonyl isocyanate (CAS 7019-16-1), molecular formula C7H3Cl2NO3S and molecular weight 252.07 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,5-Dichlorobenzenesulfonyl isocyanate (C7H3Cl2NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 252.07 g/mol, it falls into the medium-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C7H3Cl2NO3S |
| Molecular Weight | 252.07 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, water |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichlorobenzenesulfonyl Standards
- 2,3-Dichlorobenzenesulfonyl isocyanate (CAS 68984-06-5)
- 2,6-Dichlorobenzenesulfonyl isocyanate (CAS 71103-41-8)
- 2,4-Dichlorobenzenesulfonyl chloride (CAS 16271-33-3)
- 2,6-Dichlorobenzenesulfonyl chloride 2,6-dichlorobenzenesulfonylchloride 2,6-dichloro-benzenesulfonyl chloride 2,6-dichlorobenzene sulfonyl chloride 2,6-dichlorobenzenesulphonyl chloride 2,6-dichlorobenzene-1-sulfonyl chloride 2,6-Dichlorophenylsulfonyl chloride 6579-54-0 (CAS 6579-54-0)
- 3,5-Dichlorobenzenesulfonyl Chloride (CAS 705-21-5)
- 2,5-Dichlorobenzenesulfonyl fluoride (CAS 1373233-39-6)
- 2,4-Dichlorobenzenesulfonyl fluoride (CAS 26120-88-7)
- (Z)-2-(2,4-dichlorobenzenesulfonyl)-N'-hydroxyethanimidamide 1798403-96-9 MS-9669 (CAS 1798403-96-9)
Recommended Standards
- 1H-Pyrazolo[4,3-d]pyrimidine-3-carbonitrile, 7-bromo-5-ethyl- (CAS 2091698-72-3)
- 2-{[(tert-butoxy)carbonyl](methyl)amino}pyridine-4-boronic acid (CAS 2377609-94-2)
- 1-Boc-3-cyclopropylpyrazol-4-ylboronic acid (CAS 2377611-51-1)
- 2-Iodo-1-(thiophen-2-yl)ethanone (CAS 55984-19-5)
- Metronidazole-d3 (CAS 83413-09-6)
- Flucloxacillin RC 5 (CAS 1797982-77-4)
- trans-4-(Cyclopropylmethoxy)cyclohexanamine (CAS 919799-80-7)
- 3-Methyl-2-heptene (cis- and trans- mixture) (CAS 3404-75-9)
- N-(4-(furan-2-yl)phenyl)acetamide (CAS 69836-64-2)
- (2-((Diethylamino)methyl)-5-fluorophenyl)boronic acid (CAS 1334170-68-1)
- 4-(4-Thiomorpholinyl)benzonitrile (CAS 90254-21-0)
- 4-((3-Chloro-4-fluorophenyl)amino)-4-oxobut-2-enoic acid (CAS 196804-60-1)
- Ethyl 3-amino-3-(4-ethoxyphenyl)propanoate hydrochloride (CAS 147524-76-3)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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