3,5-Dinitrosalicylic acid sodium CAS 46506-88-1
| CAS No. | 46506-88-1 |
| Molecular Formula | C7H3N2O7 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,5-Dinitrosalicylic acid sodium (C7H3N2O7Na) contains a carbohydrate-derived structure, an amide group. 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 250.10 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3,5-Dinitrosalicylic acid sodium (CAS 46506-88-1) is a high-purity analytical reference standard with the molecular formula C7H3N2O7Na and a molecular weight of 250.10 g/mol.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C7H3N2O7 Na |
| Molecular Weight | 250.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 1970 |
| Nitrogen Atoms | 2 |
Related Dinitrosalicylic Standards
Recommended Standards
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- 6-Hydroxy-3-methylindolin-2-one (CAS 1713477-55-4)
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- 1-(4-Methyl-3-nitrophenyl)methanamine (CAS 623155-53-3)
- Methyl (3E)-3-(methoxyimino)-2-{[4-(trifluoromethyl)phenyl]formamido}propanoate (CAS 1025366-08-8)
- (1-(4-Chlorophenyl)-1H-1,2,3-triazol-4-yl)methyl 3-(trifluoromethyl)benzoate (CAS 338419-27-5)
- 3-Hydroxy-5-methylpyrrolidin-2-one (CAS 67706-85-8)
- Ethyl 6-bromo-4-oxo-3,4-dihydro-2H-benzo[e][1,3]oxazine-2-carboxylate (CAS 30482-66-7)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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