2-Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt CAS 36290-04-7
| CAS No. | 36290-04-7 |
| Molecular Formula | C10H7O3S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 2-Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt (C10H7O3SCH2ONa) 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 7.5, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 260.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 2-Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt (CAS 36290-04-7), a certified reference material (molecular formula C10H7O3SCH2ONa, MW 260.24 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C10H7O3S CH2O Na |
| Molecular Weight | 260.24 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) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1967 |
| Sulfur Atoms | 1 |
Related Naphthalenesulfonic Standards
- 2-Naphthalenesulfonic acid (CAS 120-18-3)
- Naphthalenesulfonic acid, sodium salt (CAS 1321-69-3)
- 2-Naphthalenesulfonic acid, 6-(acetylamino)-4-hydroxy-3-[2-[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]diazenyl]-, sodium salt (CAS 20262-58-2)
- 1-Naphthalenesulfonic acid, 3,4-dihydro-3,4-dioxo- (CAS 2066-93-5)
- Naphthalenesulfonic acid, methyl-, sodium salt (CAS 26264-58-4)
- Naphthalenesulfonic acid, methylenebis-, sodium salt (CAS 26545-58-4)
- Naphthalenesulfonic acid, dinonyl-, sodium salt (CAS 26834-28-6)
- 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt (CAS 6245-60-9)
Recommended Standards
- (R)-2-(2-(Diphenylphosphanyl)phenyl)-4-isopropyl-5,5-diphenyl-4,5-dihydrooxazole (CAS 1904575-43-4)
- 4-(4-Methoxyphenyl)-2-azetidinone (CAS 180264-44-2)
- 1-(5-Aminopyridin-3-yl)piperidine-2-carboxamide (CAS 1564621-38-0)
- 6-Cyanophenanthrene-9-carboxylic acid (CAS 855696-12-7)
- 1,4-Dimethyl 2-[(phenoxycarbonyl)amino]benzene-1,4-dicarboxylate (CAS 448241-35-8)
- Dehydroxy Indacaterol Impurity (CAS 918968-40-8)
- (2-(4-Chloro-3-(trifluoromethyl)phenyl)benzo[d]oxazol-6-yl)methanol (CAS 820241-12-1)
- (S)-Methyl 2-(1-amino-6-nitro-2,3-dihydro-1H-inden-1-yl)acetate hydrochloride (CAS 1363408-27-8)
- 8-bromo-3-chloro-naphthalene-1-carboxylic acid (CAS 2387596-42-9)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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