3-Hydroxynaphthalene-1-sulfonic acid CAS 6357-85-3
| CAS No. | 6357-85-3 |
| Molecular Formula | C10H8O4S |
| Molecular Weight | 224.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Hydroxynaphthalene-1-sulfonic acid is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 3-Hydroxynaphthalene-1-sulfonic acid (CAS 6357-85-3), a certified reference material (molecular formula C10H8O4S, MW 224.23 g/mol) for analytical method development and quality control.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 3-Hydroxynaphthalene-1-sulfonic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 224.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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-Hydroxynaphthalene-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 | C10H8O4S |
| Molecular Weight | 224.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |
Related Hydroxynaphthalene Standards
- 8-Hydroxynaphthalene-1-sulfonic acid (CAS 117-22-6)
- 7-Hydroxynaphthalene-1-sulfonic acid (CAS 132-57-0)
- 2-Hydroxynaphthalene-1-sulfonic acid (CAS 567-47-5)
- 4-Hydroxynaphthalene-2-sulfonic acid (CAS 3771-14-0)
- 6-Hydroxynaphthalene-2-sulphonic acid (CAS 93-01-6)
- 7-Hydroxynaphthalene-2-sulfonic acid (CAS 92-40-0)
- 5-Hydroxynaphthalene-1-Sulfonic Acid (CAS 117-59-9)
- 2-Benzyl-3-hydroxynaphthalene-1,4-dione (CAS 15451-41-9)
Recommended Standards
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- 4-(2-Fluorophenyl)tetrahydro-2H-pyran-4-carboxylic acid (CAS 889939-77-9)
- 2-Bromo-5-hydroxybenzaldehyde 5-O-(2-Methoxyethoxymethyl) Ether (CAS 1797130-69-8)
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- 2-{[(tert-butoxy)carbonyl](methyl)amino}-3-phenylpropanoic acid (CAS 64263-83-8)
- 2-(4-(Aminomethyl)piperidin-1-yl)-N-isopropylacetamide (CAS 1019340-95-4)
- Tert-butyl 1-phenylhydrazine-1-carboxylate (CAS 226065-37-8)
- (3-Phenyl-1H-pyrazol-1-yl)methanol (CAS 150704-06-6)
- (3,5-Dimethylthiophen-2-yl)(thiophen-2-yl)methanol (CAS 944651-88-1)
- N-Decyl-N-methyl-N-(3-(trimethoxysilyl)propyl)decan-1-aminium chloride (CAS 68959-20-6)
- (S)-5-Fluoro-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 1932166-69-2)
- Protein Kinase C (19-36) Peptide (CAS 113731-96-7)
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