2-Naphthyl phosphate disodium salt dihydrate CAS 31681-98-8
| CAS No. | 31681-98-8 |
| Molecular Formula | C10H7O4P |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Naphthyl phosphate disodium salt dihydrate (CAS 31681-98-8), molecular formula C10H7O4PNa and molecular weight 245.13 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Naphthyl phosphate disodium salt dihydrate (C10H7O4PNa) contains a phosphate ester 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 245.13 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 2-Naphthyl phosphate disodium salt dihydrate 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 | C10H7O4P 2*Na |
| Molecular Weight | 245.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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.) | 1966 |
Related Naphthyl Standards
- 1-Naphthyl Phosphate Potassium Salt (CAS 100929-85-9)
- 4,4′-Bis[(1-naphthyl)(4-styryl)amino][1,1′]biphenyl (CAS 1010396-31-2)
- 2-Naphthyl isocyanate (CAS 10124-78-4)
- 2-(1-Naphthyl)-1-propanol (CAS 101349-60-4)
- 1-(1-Naphthyl)cyclopentanamine (CAS 1017408-97-7)
- 8-(1-Naphthyl)-8-oxooctanoic acid (CAS 101743-46-8)
- 1-(1-Naphthyl)cyclobutanamine (CAS 1017461-88-9)
- Ethyl 4-(1-Naphthyl)-2,4-dioxobutanoate (CAS 1019379-49-7)
Recommended Standards
- 3-isopropylbicyclo[1.1.1]pentan-1-amine hydrochloride (CAS 1886967-00-5)
- Methyl 2,5-dimethylthiophene-3-carboxylate (CAS 53562-48-4)
- 2,3-Bis(1-methylethyl)-2-cyclopropen-1-one (CAS 877675-72-4)
- (4-(Aminomethyl)piperidin-1-yl)(3-iodophenyl)methanone (CAS 1589429-75-3)
- N-(4-(cyanomethyl)phenyl)-2-(3,4-diethoxyphenyl)acetamide (CAS 524052-05-9)
- 6-Bromo-2-phenylquinazoline (CAS 1004997-72-1)
- N-[3-(Dimethylamino)propyl]-2-(pyridin-4-yl)-1,3-thiazole-4-carboxamide (CAS 321429-91-8)
- 4-(Methoxycarbonyl)-2-(trifluoromethyl)phenylboronic Acid Pinacol Ester (CAS 1371589-09-1)
- (R)-2-((tert-butoxycarbonyl)amino)-4-(2-methoxyphenyl)butanoic acid (CAS 1260589-55-6)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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