Dinaphtho[2,3-b;2',3'-d]furan" CAS 242-51-3
| CAS No. | 242-51-3 |
| Molecular Formula | C20H12O |
| Molecular Weight | 268.31 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 Dinaphtho[2,3-b;2',3'-d]furan".
CATO supplies Dinaphtho[2,3-b;2',3'-d]furan" (CAS 242-51-3), a certified reference material (molecular formula C20H12O, MW 268.31 g/mol) for analytical method development and quality control.
Dinaphtho[2,3-b;2',3'-d]furan" (C20H12O) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C20H12O |
| Molecular Weight | 268.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Dinaphtho Standards
- Dinaphtho[2,1-b:1,2-d]furan (CAS 194-63-8)
- Dinaphtho[1,2-b:2',1'-d]furan (CAS 239-69-0)
- Dinaphtho[1,2-b;1',2'-d]furan" (CAS 207-93-2)
- Dinaphtho[1,2-b;2',3'-d]furan" (CAS 239-90-7)
- Dinaphtho[2,1-b;2',3'-d]furan" (CAS 204-91-1)
- Dinaphtho[2,1-b;1',2'-d]thiophene" (CAS 194-65-0)
- Dinaphtho[2,1-b:2',3'-d]furan-8,13-dione (CAS 5397-99-9)
- 935280-42-5 dinaphtho[2,3-b:2',3'-f]thieno[3,2-b]thiophene (CAS 935280-42-5)
Recommended Standards
- Ethyl 2-(2-oxo-2-phenylethyl)benzoate (CAS 898776-66-4)
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- Ethyl 3-(3,4,5-trimethoxyphenyl)propanoate (CAS 70311-20-5)
- 3-((4-Methylbenzyl)sulfinyl)-4-phenyl-5-((3-(trifluoromethyl)phenoxy)methyl)-4H-1,2,4-triazole (CAS 955961-69-0)
- Tert-butyl ((1r,4r)-4-aminocyclohexyl)(methyl)carbamate (CAS 566172-79-0)
- Ethyl 3-(3-bromophenyl)propiolate (CAS 1289203-51-5)
- 3-(3,5-Difluorophenyl)azetidine Hydrochloride (CAS 1203682-20-5)
- (2-Amino-4-methylpyridin-3-yl)methanol (CAS 179554-99-5)
- N-Isopropyldopamine Hydrochloride (CAS 5178-52-9)
- Semaglutide impurity 72 (CAS CATO-C4X-222672)
- tert-Butyl ((1-(3-aminophenyl)pyrrolidin-3-yl)methyl)carbamate (CAS 889948-52-1)
- 1-(4-Bromophenyl)-3-(dimethylamino)propan-1-one hydrochloride (CAS 881-83-4)
- Eledoisin Related Peptide (CAS 2990-43-4)
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