Bis(4-nitrophenyl) hydrogen phosphate (sodium) CAS 4043-96-3
| CAS No. | 4043-96-3 |
| Molecular Formula | C12H8N2NaO8P |
| Molecular Weight | 362.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Bis(4-nitrophenyl) hydrogen phosphate (sodium) (CAS 4043-96-3), molecular formula C12H8N2NaO8P and molecular weight 362.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, Bis(4-nitrophenyl) hydrogen phosphate (sodium) is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 362.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Bis(4-nitrophenyl) hydrogen phosphate (sodium) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H8N2NaO8P |
| Molecular Weight | 362.16 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Bis Standards
- 3-Methyl-1-(3-nitrophenyl)-4-(3-(trifluoromethyl)phenyl)-1H-pyrazol-5-amine (CAS 321391-73-5)
- 3-Methyl-1-(4-nitrophenyl)-4-(3-(trifluoromethyl)phenyl)-1H-pyrazol-5-amine (CAS 852690-94-9)
- 1-(3-Nitrophenyl)-3-((4-phenoxyphenyl)amino)propan-1-one (CAS 477334-13-7)
- 4-[4-(4-Nitrophenyl)-6-phenylpyrimidin-2-yl]morpholine (CAS 352225-04-8)
- 1-(4-Nitrophenyl)-2',3',4',9'-tetrahydrospiro[piperidine-4,1'-pyrido[3,4-b]indole] (CAS 776284-13-0)
- N-((5-(4-Nitrophenyl)furan-2-yl)methylene)-4-pentylaniline (CAS 63485-09-6)
- 4-[(E)-2-[(3-Nitrophenyl)methylidene]hydrazin-1-yl]-2-(trifluoromethyl)quinazoline (CAS 303148-94-9)
- 3-(4-Nitrophenyl)-5-((phenylselanyl)methyl)-4,5-dihydroisoxazole (CAS 833462-36-5)
Recommended Standards
- 4-(Cyclopentyloxy)-3-iodo-5-methoxybenzoic acid (CAS 833440-38-3)
- Iodomesitylene Diacetate (CAS 33035-41-5)
- 3-Iodo-2-(p-tolyl)-4H-chromen-4-one (CAS 878199-10-1)
- N-(2,6-dichlorophenyl)-2,2-difluoro-2-(4-methoxyphenoxy)acetamide (CAS 303151-16-8)
- 2-((5-Amino-1,3,4-thiadiazol-2-yl)thio)-N-(3-methoxyphenyl)acetamide (CAS 736954-80-6)
- 4-chloro-N-(cyclohexylmethylidene)benzene-1-sulfonamide (CAS 1807884-99-6)
- 2-Ethoxy-6-methylpyridin-4-amine (CAS 197163-57-8)
- 4-[5-(4-Fluorophenyl)-1,3,4-oxadiazol-2-yl]piperidine (CAS 493024-40-1)
- 4,7-Dimethoxy-5-(3-phenyl-4,5-dihydroisoxazol-5-yl)benzofuran-6-ol (CAS 61340-56-5)
- N-(3-Iodo-4-methylphenyl)thiophene-3-amide (CAS 623907-55-1)
- N-(4-Chloroacridin-9-yl)-N-methylacetamide (CAS 61981-71-3)
- 3,5-Dimethylpiperidine-1-carboximidamide (CAS 774561-45-4)
- Methyl 3-amino-1,4-dimethyl-1H-pyrazole-5-carboxylate (CAS 2764671-25-0)
- Semaglutide Impurity 8 (CAS CATO-C4X-22268)
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