2-[(4E)-3,4-Dihydro-2H-1-benzopyran-4-ylidene]ethan-1-ol CAS 345891-39-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 345891-39-6 |
| Molecular Formula | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-[(4E)-3,4-Dihydro-2H-1-benzopyran-4-ylidene]ethan-1-ol (CAS 345891-39-6), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C11H12O2. Molecular weight: 176.21 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C11H12O2 |
| Molecular Weight | 176.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related E Standards
- 3-(2,3-dihydro-1-benzofuran-5-yl)propanal (CAS 1057670-88-8)
- 8-ethyl-3,4-dihydro-2H-1-benzopyran-4-one (CAS 1094750-05-6)
- 3,4-Dihydro-8-methoxynaphthalen-1(2H)-one (CAS 13185-18-7)
- 4-Methyl-3,4-dihydro-2h-1-benzopyran-4-carbaldehyde (CAS 139711-08-3)
- 1-(3,4-Dihydro-2H-1-benzopyran-3-yl)ethan-1-one (CAS 1433830-68-2)
- 4-Methyl-3,4-dihydro-1H-2-benzopyran-4-carboxaldehyde (CAS 161297-43-4)
- 1-(2,3-Dihydro-1-benzofuran-5-yl)propan-1-one (CAS 68660-11-7)
- 1-(3,4-Dihydro-2h-1-benzopyran-6-yl)ethan-1-one (CAS 58621-52-6)
Recommended Standards
- 2-[(2-Methylprop-2-en-1-yl)oxy]benzaldehyde (CAS 38002-87-8)
- 2-Allyl-3-methoxybenzaldehyde (CAS 94956-98-6)
- 2,6-Diethynylnaphthalene (CAS 507276-82-6)
- Methyl 1-((tert-butoxycarbonyl)amino)-3-formylcyclobutanecarboxylate (CAS 2173999-12-5)
- (2E)-1-{4-[(2,4-dichlorophenyl)methoxy]phenyl}-3-[(3-methylphenyl)amino]prop-2-en-1-one (CAS 477889-27-3)
- tert-Butyl (1-amino-1-oxopropan-2-yl)carbamate (CAS 81587-17-9)
- 2-Bromo-3-(2,6-difluoro-4-(trifluoromethyl)phenoxy)-1-fluoro-4-nitrobenzene (CAS 2244088-76-2)
- 1,4-Dimethyl-3-(4-methylthiophen-3-yl)-1h-pyrazol-5-amine (CAS 1501500-01-1)
- (4-(5-(Chloromethyl)-1,2,4-oxadiazol-3-yl)phenyl)((2S,6R)-2,6-dimethylmorpholino)methanone (CAS 1186662-45-2)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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