1,5-Naphthalenedisulfonic Acid CAS 211366-30-2
| CAS No. | 211366-30-2 |
| Molecular Formula | C10H8O6S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,5-Naphthalenedisulfonic Acid.
1,5-Naphthalenedisulfonic Acid (CAS 211366-30-2), molecular formula C10H8O6S2H2O and molecular weight 306.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,5-Naphthalenedisulfonic Acid (C10H8O6S2H2O) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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), 1,5-Naphthalenedisulfonic 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 | C10H8O6S2 4*H2O |
| Molecular Weight | 306.30 g/mol |
| Purity | >95% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2017 |
| Sulfur Atoms | 2 |
Related Naphthalenedisulfonic Standards
- 1,3-Naphthalenedisulfonic acid, 6-amino-, sodium salt (1:1) (CAS 147708-57-4)
- 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 20779-13-9)
- 7-Naphthalenedisulfonic Acid (CAS 5724-16-3)
- 1,5-Naphthalenedisulfonic acid, 3-[2-(4-amino-5-methoxy-2-methylphenyl)diazenyl]- (CAS 61827-75-6)
- 2,7-Naphthalenedisulfonic acid, 4,4'-[1,4-phenylenebis[imino(6-chloro-1,3,5-triazine-4,2-diyl)imino]]bis[5-hydroxy-6-[(2-sulfophenyl)azo]- 5-[[4-chloro-6-[4-[[4-chloro-6-[[8-hydroxy-3,6-disulfo-7-[(E)-(2-sulfophenyl)azo]-1-naphthyl]amino]-1,3,5-triazin-2-yl]amino]anilino]-1,3,5-triazin-2-yl]amino]-4-hydroxy-3-[(E)-(2-sulfophenyl)azo]naphthalene-2,7-disulfonic acid 61951-82-4 Reactive Red 120 (CAS 61951-82-4)
- 1,5-Naphthalenedisulfonic acid (CAS 81-04-9)
Recommended Standards
- 2,5-Dichloro-4-nitrobenzodifluoride (CAS 1806356-64-8)
- 4-Ethoxy-2-methylbenzoic acid (CAS 103323-97-3)
- 4-[4-(Hydroxymethyl)phenoxy]butanoic acid (CAS 139122-36-4)
- Tert-butyl (1-(5-bromopyridin-2-yl)-2-hydroxyethyl)carbamate (CAS 1823472-70-3)
- Drotaverin Impurity 73 (CAS CATO-C4X-243573)
- 4-Bromo-3,5-dichlorobenzoic acid (CAS 117738-75-7)
- N-cyclopropyl-1,2,4-triazin-3-amine (CAS 1086393-22-7)
- Spiro[isobenzofuran-1(3H),4-piperidine] HCl (CAS 37663-44-8)
- Isopentyl 3,7-dichloroquinoline-8-carboxylate (CAS 381686-77-7)
- Semaglutide impurity 261 (CAS CATO-C4X-2226261)
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 18665070610 / Nicole.chen@cato-chem.com