5-(Dimethylamino)naphthalene-1-sulfonic acid CAS 4272-77-9
| CAS No. | 4272-77-9 |
| Molecular Formula | C12H13NO3S |
| Molecular Weight | 251.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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 supplies 5-(Dimethylamino)naphthalene-1-sulfonic acid (CAS 4272-77-9), a certified reference material (molecular formula C12H13NO3S, MW 251.30 g/mol) for analytical method development and quality control.
Structurally, 5-(Dimethylamino)naphthalene-1-sulfonic acid (C12H13NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 251.30 g/mol, it falls into the medium-molecular-weight range. 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).
As a certified reference material (CRM), 5-(Dimethylamino)naphthalene-1-sulfonic acid 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 | C12H13NO3S |
| Molecular Weight | 251.30 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dimethylamino Standards
- (E)-3-(dimethylamino)-1-(4-(3-fluoropropoxy)phenyl)prop-2-en-1-one (CAS 477888-90-7)
- 6-(Dimethylamino)naphthalene-2-sulfonic acid (CAS 34322-51-5)
- 6-[(2E)-3-(Dimethylamino)prop-2-enoyl]-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one (CAS 343375-28-0)
- 3-(4-(Dimethylamino)phenyl)-1-phenylprop-2-en-1-one (CAS 1030-27-9)
- 4-(4-(Dimethylamino)butoxy)-3-methoxybenzaldehyde (CAS 1242812-66-3)
- (E)-3-(4-(dimethylamino)phenyl)-1-phenylprop-2-en-1-one (CAS 22965-98-6)
- 5-((Dimethylamino)methyl)-4-(4-fluorophenyl)thiazol-2-amine (CAS 955327-92-1)
- 3-(3-(2-(Dimethylamino)-2-oxoethoxy)phenyl)propanoic acid (CAS 1312141-20-0)
Recommended Standards
- 5-(3,4-Dimethoxybenzyl)-1,3,4-thiadiazol-2-amine (CAS 313957-85-6)
- 5-(Furan-2-yl)-4-((tetrahydrofuran-2-yl)methyl)-4H-1,2,4-triazole-3-thiol (CAS 777879-30-8)
- 5-(2-Methoxy-phenoxymethyl)-4-methyl-4H-[1,2,4]triazole-3-thiol (CAS 485773-69-1)
- 5-(Methoxymethyl)-4-{[(2-thienylmethyl)amino]methylene}-2,4-dihydro-3H-pyrazol-3-one (CAS 240799-69-3)
- 2-(3-(Furan-2-yl)-6-oxopyridazin-1(6H)-yl)-N-(4-morpholinophenyl)propanamide (CAS 1286695-23-5)
- 3-Ethyl-3-methyl-2-pentanone (CAS 19780-65-5)
- 2-Amino-3,5-dichloropyridine 1-oxide (CAS 91872-00-3)
- 4-(4-Chlorophenyl)-2-((2-(diethylamino)ethyl)amino)-4-oxobutanoic acid (CAS 1026755-23-6)
- 2,6-Dichloro-1,5-naphthyridine (CAS 27017-66-9)
- 3-amino-N-benzylpropanamide (CAS 64018-20-8)
- (3a'R,4'S,6'R,7'R,7a'S)-4'-((R)-1,4-Dioxaspiro[4.5]decan-2-yl)tetrahydro-4'H-spiro[cyclohexane-1,2'-[1,3]dioxolo[4,5-c]pyran]-6',7'-diol (CAS 871360-09-7)
- 5-(Morpholinosulfonyl)-N-(thiophen-2-ylmethyl)furan-2-carboxamide (CAS 1170875-63-4)
- N-((4-Phenyltetrahydro-2H-pyran-4-yl)methyl)thiophene-2-carboxamide (CAS 713113-86-1)
- D-β-Asp9-Tirzepatide (CAS CATO-CPTD788932)
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