8-Hydroxy-7-((4-sulfo-1-naphthyl)azo)quinoline-5-sulfonicacid CAS 117-87-3
| CAS No. | 117-87-3 |
| Molecular Formula | C19H13N3O7S2 |
| Molecular Weight | 459.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 459.45 g/mol gives 8-Hydroxy-7-((4-sulfo-1-naphthyl)azo)quinoline-5-sulfonicacid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
8-Hydroxy-7-((4-sulfo-1-naphthyl)azo)quinoline-5-sulfonicacid (CAS 117-87-3) is a high-purity analytical reference standard with the molecular formula C19H13N3O7S2 and a molecular weight of 459.45 g/mol.
Based on its molecular formula C19H13N3O7S2, 8-Hydroxy-7-((4-sulfo-1-naphthyl)azo)quinoline-5-sulfonicacid contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 459.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C19H13N3O7S2 |
| Molecular Weight | 459.45 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Hydroxy Standards
- 5-Hydroxy-2-phenyl-7-(3-(triethoxysilyl)propoxy)-4H-chromen-4-one (CAS 945761-08-0)
- (8α,9R)-9-Hydroxy-1-[2-[(4-methoxyphenyl)amino]-2-oxoethyl]cinchonanium (CAS 2380293-65-0)
- Benzyl (1-(1-hydroxy-1-phenylpropan-2-yl)-2-oxopiperidin-4-yl)(phenyl)carbamate (CAS 1233011-01-2)
- (S)-3-(3-(4-Hydroxy-3-methoxyphenyl)propylamino)-4-((S)-1-methoxy-1-oxo-3-phenylpropan-2-ylamino)-4-oxobutanoic acid (CAS 329326-75-2)
- 2-Hydroxy Desipramine-D6 Glucuronide (CAS 25521-31-7)
- (E)-4-Hydroxy-3-((4-sulfonaphthalen-1-yl)diazenyl)naphthalene-1-sulfonic acid (CAS 13613-55-3)
- 1,4-Bis(6-hydroxy-3-methoxy-2,4-dimethylphenyl)naphthalene-2,3-diol (CAS 1835689-42-3)
- 6,6'-((2-Hydroxy-5-methyl-1,3-phenylene)bis(methylene))bis(2-(tert-butyl)-4-methylphenol) (CAS 90-68-6)
Recommended Standards
- Apalutamide Impurity 54 (CAS 1332389-57-7)
- (S,E)-2-(2-((2-(4-Methoxybenzylidene)-3-oxo-2,3-dihydrobenzofuran-6-yl)oxy)acetamido)-2-phenylacetic acid (CAS 1173681-94-1)
- 6-Acetyl-3-amino-N-(3-cyanophenyl)-4-(trifluoromethyl)-5H,6H,7H,8H-thieno[2,3-b]1,6-naphthyridine-2-carboxamide (CAS 664999-49-9)
- 4,4'-Azanediylbis(1-aminoanthracene-9,10-dione) (CAS 128-87-0)
- (E)-3-Fluoro-2-methylacrylic acid (CAS 106910-18-3)
- Ethyl 2-(4-fluoro-3,5-dimethylphenyl)-2-oxoacetate (CAS 1256482-47-9)
- 3-(dimethylamino)-2-phenylpropanoic acid hydrochloride (CAS 858785-97-4)
- (R)-1-(2-Ethoxyphenyl)ethan-1-ol (CAS 1212184-74-1)
- N-(4-Oxo-3-phenylthiazolidin-2-ylidene)benzamide (CAS 139564-90-2)
- trans-2-(4-Methylbenzoyl)cyclopentane-1-carboxylic acid (CAS 733740-81-3)
- 3-Bromo-2-chlorothiophene (CAS 40032-73-3)
- 1-(Chloromethyl)-4-(2-methoxyethoxy)benzene (CAS 79407-31-1)
- N-(oxan-4-yl)-3-(pyridin-3-yl)imidazo[1,2-b]pyridazin-6-amine (CAS 928336-02-1)
- Cycloaspeptide A (CAS 109171-13-3)
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