1,5-Naphthalenedisulfonic acid CAS 81-04-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 81-04-9 |
| Molecular Formula | C10H8O6S2 |
| Molecular Weight | 288.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,5-Naphthalenedisulfonic acid (CAS 81-04-9) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C10H8O6S2. Molecular weight: 288.30 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C10H8O6S2 |
| Molecular Weight | 288.30 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 Naphthalenedisulfonic Standards
- 2,7-Naphthalenedisulfonic acid (CAS 92-41-1)
- 7-Naphthalenedisulfonic Acid (CAS 5724-16-3)
- 1,5-Naphthalenedisulfonic Acid (CAS 20779-13-9)
- 1,3-Naphthalenedisulfonic acid, 6-amino-, sodium salt (1:1) (CAS 147708-57-4)
- 1,5-Naphthalenedisulfonic acid, 3-[2-(4-amino-5-methoxy-2-methylphenyl)diazenyl]- (CAS 61827-75-6)
- 1,5-Naphthalenedisulfonic acid sodium salt (CAS 1655-29-4)
- 207569-02-6 1,5-Naphthalenedisulfonic acid, disodium salt hydrate DTXSID0044315 (CAS 207569-02-6)
- 1,5-Naphthalenedisulfonic Acid (CAS 211366-30-2)
Recommended Standards
- 1,5-dioxo-4-propyl-2,3,4,5-tetrahydropyrrolo[1,2-a]quinazoline-3a(1H)-carboxylic acid (CAS 848052-91-5)
- 1-Amino-3-benzyloxy-4-oxo-1,4-dihydropyridine-2-carboxylic acid ethyl ester (CAS 1985607-66-6)
- 1,2,3,4-Tetramethoxydibenzo[b,d]furan (CAS 88256-07-9)
- Bis(1-phenyl-1,3-pentanedionato)copper (CAS 15443-06-8)
- 4-Oxothiochroman-6-carboxylic acid (CAS 128121-49-3)
- N-benzyl-2-(pyridin-2-yl)-4-(trifluoromethyl)pyrimidine-5-carboxamide (CAS 865660-42-0)
- Methyl 2-(1-ethyl-6-oxo-1,6-dihydropyrimidin-4-yl)acetate (CAS 1713714-06-7)
- 4-(4-Chlorophenoxy)-3,5-difluorobenzenesulfonyl chloride (CAS 549547-34-4)
- 1,3,5-Tribromoadamantane (CAS 707-34-6)
- Neuroendocrine Regulatory Peptide-4 (human, mouse, rat) (H-7266.1000) (CAS 922704-18-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com