Sodium 4-((3-acetamidophenyl)amino)-1-amino-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate CAS 70571-81-2
| CAS No. | 70571-81-2 |
| Molecular Formula | C22H16N3O6S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Sodium 4-((3-acetamidophenyl)amino)-1-amino-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate (CAS 70571-81-2) is a high-purity analytical reference standard with the molecular formula C22H16N3O6SNa and a molecular weight of 473.43 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Sodium 4-((3-acetamidophenyl)amino)-1-amino-9,10-dioxo-9,10-dihydroanthracene-2-sulfonate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 473.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C22H16N3O6S Na |
| Molecular Weight | 473.43 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Sodium Standards
- n-(4-Acetamidophenyl)-2-(3-oxo-1,2,3,4-tetrahydroquinoxalin-2-yl)acetamide (CAS 1008865-40-4)
- N-(4-Acetamidophenyl)-3-methoxy-1-methyl-1H-pyrazole-4-carboxamide (CAS 1014048-76-0)
- N-(3-Acetamidophenyl)-3-ethoxy-1-ethyl-1H-pyrazole-4-carboxamide (CAS 1014088-95-9)
- N-(3-acetamidophenyl)piperidine-4-carboxamide (CAS 1016770-80-1)
- 1-(3-Acetamidophenyl)-5-oxopyrrolidine-3-carboxylic acid (CAS 1016874-64-8)
- 3-(4-Acetamidophenyl)pyrazine 1-oxide (CAS 101986-69-0)
- 2-(2-acetamidophenyl)acetic acid (CAS 103205-34-1)
- 3-(2-Acetamidophenyl)propanoic acid (CAS 103797-10-0)
Recommended Standards
- 2-(Pyridin-2-ylamino)acetamide (CAS 102000-66-8)
- 4-Amino-2-chloro-3-fluorobenzoic acid (CAS 1124214-25-0)
- 3,4-Dimethylphenethylamine 2-(3,4-dimethylphenyl)ethan-1-amine 2-(3,4-dimethylphenyl)ethanamine 17283-14-6 (CAS 17283-14-6)
- 4-(difluoromethoxy)-1,3-benzothiazol-2-amine (CAS 1038981-17-7)
- tert-Butyl 4-(1,3-dihydroxypropan-2-yl)piperidine-1-carboxylate (CAS 1257294-03-3)
- 3-Cyclopropoxy-2-isopropyl-6-methoxypyridine (CAS 1243407-13-7)
- 2-(((Benzyloxy)carbonyl)amino)-2-(4-iodophenyl)acetic acid (CAS 1313033-02-1)
- (3R,4R)-1-(tert-butoxycarbonyl)-4-(2,4-difluorophenyl)-3-fluoropyrrolidine-3-carboxylic acid (CAS 2098740-27-1)
- 2-Chloromethyl-3-trifluoromethyl-phenol (CAS 1261584-87-5)
- Semaglutide impurity 85 (CAS CATO-C4X-222685)
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