8-Hydroxy-7-(2-hydroxy-2-(4-nitrophenyl)acetamido)quinoline-5-sulfonic acid trihydrate CAS 643-25-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 643-25-4 |
| Molecular Formula | C6H9ClN4O4S2 |
| Molecular Weight | 300.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Hydroxy-7-(2-hydroxy-2-(4-nitrophenyl)acetamido)quinoline-5-sulfonic acid trihydrate (CAS 643-25-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C6H9ClN4O4S2. Molecular weight: 300.74 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C6H9ClN4O4S2 |
| Molecular Weight | 300.74 g/mol |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
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Recommended Standards
- 8-(Chloromethyl)-7-(2-methoxyethyl)-3-propyl-2,3,6,7-tetrahydro-1h-purine-2,6-dione (CAS 853724-00-2)
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- 7-(Benzyloxy)-6-chloro-4-methyl-2H-chromen-2-one (CAS 304880-89-5)
- 3-(6-(tert-Butyl)pyridin-3-yl)acrylic acid (CAS 545393-82-6)
- 2-(4-Fluorophenyl)piperazine dihydrochloride (CAS 65709-34-4)
- Spiro[chromene-2,4'-piperidine] hydrochloride (CAS 1047655-63-9)
- Tert-butyl (5-oxospiro[3.5]Nonan-2-yl)carbamate (CAS 2306260-81-9)
- 1-(4-Amino-1,2,5-oxadiazol-3-yl)piperidine-4-carboxylic acid (CAS 447455-16-5)
- 3-(2-Aminoethyl)-3,4-dihydroquinazolin-4-one dihydrochloride (CAS 858236-77-8)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
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 13829788188 / jacky.chen@cato-chem.com