Naphthalenesulfonic acid, sodium salt CAS 1321-69-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1321-69-3 |
| Molecular Formula | C10H7O3S Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Naphthalenesulfonic acid, sodium salt (CAS 1321-69-3) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C10H7O3S Na. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C10H7O3S Na |
| Molecular Weight | 230.21 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.) | 1957 |
| Sulfur Atoms | 1 |
Related Naphthalenesulfonic Standards
- 2-Naphthalenesulfonic acid (CAS 120-18-3)
- 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, polymer with formaldehyde, sodium salt (CAS 36290-04-7)
- 2-Naphthalenesulfonic acid, 6-amino-4-hydroxy-5-[2-[2-(phenylsulfonyl)phenyl]diazenyl]-, sodium salt (CAS 6245-60-9)
Recommended Standards
- 4-Bromo-2-oxo-1-(p-tolyl)-1,2-dihydropyridine-3-carbaldehyde (CAS 1088987-97-6)
- 2-Phenyl-N'-[(1E)-(thiophen-2-yl)methylidene]acetohydrazide (CAS 113875-04-0)
- (S)-2-Amino-5-(4-methoxyphenyl)pentanoic acid (CAS 56047-44-0)
- N-(4-Acetylphenyl)-2-(4-(2,6-dioxo-1,3-dipropyl-2,3,6,9-tetrahydro-1H-purin-8-yl)phenoxy)acetamide (CAS 264622-53-9)
- 5-Chloro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 1132669-91-0)
- 7-(3,4-Diethoxyphenyl)-2-(4-phenylpiperazin-1-yl)thieno[3,2-d]pyrimidin-4(1H)-one (CAS 1242878-13-2)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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