1,1'-(((Sulfonylbis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-ol) CAS 21708-77-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21708-77-0 |
| Molecular Formula | C34H24N2O4S |
| Molecular Weight | 556.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,1'-(((Sulfonylbis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(naphthalen-2-ol) (CAS 21708-77-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C34H24N2O4S. Molecular weight: 556.63 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C34H24N2O4S |
| Molecular Weight | 556.63 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) | 24.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Sulfonylbis Standards
- 1,1'-(((Sulfonylbis(4,1-phenylene))bis(oxy))bis(3,1-phenylene))bis(1H-pyrrole-2,5-dione) (CAS 99391-93-2)
- 1,1'-(((Sulfonylbis(4,1-phenylene))bis(oxy))bis(4,1-phenylene))bis(1H-pyrrole-2,5-dione) (CAS 56166-52-0)
- 6,6'-(((Sulfonylbis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))bis(2-methoxyphenol) (CAS 124116-83-2)
- 10,10'-(Sulfonylbis(4,1-phenylene))bis(9,9-dimethyl-9,10-dihydroacridine) (CAS 1477512-32-5)
- 2,2'-Sulfonylbis(4-(2,4,4-trimethylpentan-2-yl)phenol) (CAS 15452-89-8)
- 4,4'-Sulfonylbis(iodobenzene) (CAS 40915-22-8)
- 2,2'-(((Sulfonylbis(4,1-phenylene))bis(azanylylidene))bis(methanylylidene))diphenol (CAS 7251-84-5)
- 9,9'-(Sulfonylbis(4,1-phenylene))bis(3,6-dimethoxy-9H-carbazole) (CAS 1477507-77-9)
Recommended Standards
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- 3-Bromo-2-chloro-5-fluorobenzoic acid (CAS 1805210-37-0)
- Methyl 1-methyl-4-phenyl-1,4-dihydropyridine-3-carboxylate (CAS 219786-85-3)
- 6,7,8-Trimethoxy-2-naphthaldehyde (CAS 71687-98-4)
- 4-Neopentyl-4H-imidazole-2,5-diol (CAS 110072-96-3)
- 3-Amino-5-methylpyrazin-2(1H)-one (CAS 89179-61-3)
- (5-Amino-1-(4-fluorophenyl)-1H-pyrazol-4-yl)(o-tolyl)methanone (CAS 618091-44-4)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
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