(Phenylamino)methanesulfonic acid CAS 103-06-0
| CAS No. | 103-06-0 |
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (Phenylamino)methanesulfonic acid (CAS 103-06-0), a certified reference material (molecular formula C7H9NO3S, MW 187.22 g/mol) for analytical method development and quality control.
(Phenylamino)methanesulfonic acid (C7H9NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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 | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Phenylamino Standards
- 3-(Phenylamino)cyclohex-2-en-1-one (CAS 24706-50-1)
- 1-Methyl-5-(phenylamino)-1H-pyrazol-3-ol (CAS 1005952-86-2)
- 2-(Phenylamino)phenol (CAS 644-71-3)
- 5-Methyl-2-(phenylamino)oxazol-4(5H)-one (CAS 15900-31-9)
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- 4-Oxo-4-(phenylamino)but-2-enoic acid (CAS 37902-58-2)
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- 2-Phenylamino-thiazol-4-one (CAS 17823-27-7)
Recommended Standards
- 2-{[(5-methyl-1,2-oxazol-3-yl)methyl]sulfanyl}acetic acid (CAS 1018168-09-6)
- 3-[(5-methyl-4H-1,2,4-triazol-3-yl)sulfanyl]propanoic acid (CAS 1082259-53-7)
- N-(pyridin-3-ylmethyl)sulfamide (CAS 1000933-31-2)
- 5-(Aminomethyl)pyridine-2-sulfonamide (CAS 1124321-60-3)
- 2-(((1-Benzylpiperidin-2-yl)methyl)(cyclopropyl)amino)acetic acid (CAS 1353964-40-5)
- 3-(Chloromethyl)benzaldehyde (CAS 77072-00-5)
- 4-Piperidinylmethyl 2,2,2-trichloroacetatehydrochloride (CAS 1220020-55-2)
- 2-{4-[3-(trifluoromethyl)phenyl]piperazin-1-yl}quinoxaline (CAS 339104-78-8)
- N-(2-Chlorophenyl)-N-(6-quinoxalinyl)urea (CAS 423154-67-0)
- N-Notroso Piperacillin impurity 105 (CAS CATO-C4X-1732105)
- 6-Bromo-3-methoxy-2-((4-methylbenzyl)oxy)benzaldehyde (CAS 1427014-80-9)
- 3,4-Difluoro-6-methyl-2H-pyran-2-one (CAS 75599-88-1)
- 4873-09-0 Benzenesulfonic acid, 4-methyl-, 2-propen-1-yl ester CTK1D6209 (CAS 4873-09-0)
- Endo-Gly29-Tirzepatide (CAS CATO-CPTD788685)
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