(1S)-[1,1'-Binaphthalene]-2,2'-disulfonyl dichloride CAS 1226773-87-0
| CAS No. | 1226773-87-0 |
| Molecular Formula | C20H12Cl2O4S2 |
| Molecular Weight | 451.34 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (1S)-[1,1'-Binaphthalene]-2,2'-disulfonyl dichloride.
CATO supplies (1S)-[1,1'-Binaphthalene]-2,2'-disulfonyl dichloride (CAS 1226773-87-0), a certified reference material (molecular formula C20H12Cl2O4S2, MW 451.34 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, (1S)-[1,1'-Binaphthalene]-2,2'-disulfonyl dichloride is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 451.34 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 | C20H12Cl2O4S2 |
| Molecular Weight | 451.34 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 2 |
Related S Standards
- (1R)-[1,1'-Binaphthalene]-2,2'-disulfonyl dichloride (CAS 1187629-43-1)
- (R)-[1,1'-Binaphthalene]-2,2'-diyl dimethanesulfonate (CAS 871231-48-0)
- (S)-[2,2'-Binaphthalene]-1,1'-diyl dimethanesulfonate (CAS 871231-47-9)
- (R)-(+)-1,1'-Binaphthalene-2,2'-diyl-S,S-bis(N,N-dimethylcarbamate) (CAS 147923-23-7)
- 1,1'-Binaphthalene-2,2'-disulfonic acid (CAS 122361-59-5)
- (1S)-[1,1'-Binaphthalene]-2,2'-disulfonic acid (CAS 852127-05-0)
- (S)-[1,1'-Binaphthalene]-2,2'-diyl dibenzoate (CAS 291772-40-2)
- (R)-[1,1'-BInaphthalene]-3,3'-dicarboxylicacid,2,2'-dimethoxy- (CAS 35216-66-1)
Recommended Standards
- ISRIB (CAS 1597403-47-8)
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- Methyl 5-acetamido-1H-1,2,4-triazole-3-carboxylate (CAS 199291-94-6)
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Why CATO?
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