2,7-Naphthalenedisulfonic acid CAS 92-41-1
| CAS No. | 92-41-1 |
| Molecular Formula | C10H8O6S2 |
| Molecular Weight | 288.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
2,7-Naphthalenedisulfonic acid (CAS 92-41-1), molecular formula C10H8O6S2 and molecular weight 288.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,7-Naphthalenedisulfonic acid (C10H8O6S2) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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 288.30 g/mol, it falls into the medium-molecular-weight range. 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.
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
- 1,5-Naphthalenedisulfonic acid (CAS 81-04-9)
- 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
- 2,7-Diphenyl-5H-pyrazolo[5,1-b][1,3]oxazin-5-one (CAS 919533-33-8)
- 2,8-Diphenyl-1H-purin-6(7H)-one (CAS 54013-62-6)
- 2,5-Diphenyl-7H-pyrazolo[5,1-b][1,3]oxazin-7-one (CAS 919533-30-5)
- 2-[(6-Methyl-4-oxo-1,2,3,4-tetrahydrocyclopenta-[c]chromen-7-yl)oxy]propanoic acid (CAS 307548-90-9)
- 2-Fluoro-1,3-diisopropylbenzene (CAS 87591-05-7)
- 6-Chloro-3-(3-chlorobenzyl)-2-methoxyquinoline (CAS 1355196-55-2)
- 3-Chloromethyl-pyrrolidine hydrochloride (CAS 1187927-23-6)
- 8,14-Dihydro-14-methyl-11-(trifluoromethyl)-indolo[2',3':3,4]pyrido[2,1-b]quinazolin-5(7H)-one (CAS 747-91-1)
- 1-Pyrrolidinyl-3-pyridineacetic Acid (CAS 933760-99-7)
- Methyl 2,3-dimethyl-6-(trifluoromethyl)imidazo[2,1-b]thiazole-5-carboxylate (CAS 1956355-89-7)
- 2-Chloro-4-(4-methoxyphenyl)pyrido[2,3-b]pyrazin-3(4H)-one (CAS 74770-03-9)
- 2-(BROMOMETHYL)-6-METHYLPYRIDINE 6-(BROMOMETHYL)-2-METHYLPYRIDINE 6-METHYL-2-(BROMOMETHYL)PYRIDINE 68470-59-7 ABBYPHARMA AP-17-5766 BC004801 PYRIDINE, 2-(BROMOMETHYL)-6-METHYL- (CAS 68470-59-7)
- (E)-11-(4-((4-Butylphenyl)diazenyl)phenoxy)undecyl methacrylate (CAS 869802-95-9)
- Semaglutide Impurity 143 (CAS CATO-C4X-2226143)
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