8-Hydroxynaphthalene-1,6-disulfonic acid CAS 117-43-1
| CAS No. | 117-43-1 |
| Molecular Formula | C10H8O7S2 |
| Molecular Weight | 304.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 8-Hydroxynaphthalene-1,6-disulfonic 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.
8-Hydroxynaphthalene-1,6-disulfonic acid (CAS 117-43-1), molecular formula C10H8O7S2 and molecular weight 304.30 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C10H8O7S2, 8-Hydroxynaphthalene-1,6-disulfonic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 304.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 8-Hydroxynaphthalene-1,6-disulfonic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H8O7S2 |
| Molecular Weight | 304.30 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.) | 1957 |
| Sulfur Atoms | 2 |
Related Hydroxynaphthalene Standards
- 4-Hydroxynaphthalene-2,7-disulfonic acid (CAS 578-85-8)
- 1-(1-Hydroxynaphthalene-2-carbonyl)pyrrolidine-2-carboxylic acid (CAS 1103247-90-0)
- 887-76-3 4,4'-Azo-3-hydroxynaphthalene-1-sulphonate 1-Naphthalenediazonium, 2-hydroxy-4-sulfo-, hydroxide, inner salt 1-Naphthalenediazonium, 2-hydroxy-4-sulfo-, inner salt EINECS 212-958-9 EC 212-958-9 (CAS 887-76-3)
- Sodium 5-hydroxynaphthalene-1-sulfonate (CAS 5419-77-2)
- 1-Hydroxynaphthalene-2-sulfonyl chloride (CAS 102879-07-2)
- 3-Hydroxynaphthalene-2,7-dicarboxylic acid (CAS 160592-73-4)
- 8-Hydroxynaphthalene-1-sulfonic acid (CAS 117-22-6)
- 7-Hydroxynaphthalene-1-sulfonic acid (CAS 132-57-0)
Recommended Standards
- N,N'-(naphthalene-1,5-diyl)bis(2-(aminooxy)acetamide) (CAS 1166232-68-3)
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- O1-benzyl O2-methyl (2S,4S)-4-azidopyrrolidine-1,2-dicarboxylate (CAS 113490-74-7)
- 3-[3-(2,5-Dimethoxyphenyl)-6-oxo-1,6-dihydropyridazin-1-yl]propanoic acid (CAS 1225973-06-7)
- 2-{[5-(furan-2-yl)-4-[(furan-2-yl)methyl]-4h-1,2,4-triazol-3-yl]sulfanyl}acetic acid (CAS 557066-48-5)
- 2-(5-Bromo-2-(trifluoromethoxy)phenyl)acetonitrile (CAS 1381944-30-4)
- (2Z,2'Z)-3,3'-(1,4-Phenylene)bis(2-phenylacrylonitrile) (CAS 58393-80-9)
- 4-Bromo-2,3-dihydrobenzofuro[7,6-d]isoxazol-8-amine (CAS 2901798-01-2)
- Methyl Pentadecafluorooctanoate (CAS 376-27-2)
- 3-Cyclooctyl-1h-pyrazol-5-amine (CAS 1795287-36-3)
- 11-Methacryloyloxyundecylphosphonic acid (CAS 1194231-98-5)
- (2-Bromophenyl)(4-(5-(thiophen-3-yl)-1,3,4-oxadiazol-2-yl)piperidin-1-yl)methanone (CAS 1448073-36-6)
- 3,4-Dihydro-1H-benzo[4,5]imidazo[2,1-c][1,4]thiazine-8-carboxylic acid 2-oxide (CAS 1706445-96-6)
- Cycloaspeptide A (CAS 109171-13-3)
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