4-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)benzoic acid CAS 952183-13-0
| CAS No. | 952183-13-0 |
| Molecular Formula | C16H14O4 |
| Molecular Weight | 270.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 4-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)benzoic acid (CAS 952183-13-0), a certified reference material (molecular formula C16H14O4, MW 270.28 g/mol) for analytical method development and quality control.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, 4-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)benzoic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.28 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H14O4 |
| Molecular Weight | 270.28 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Dihydro Standards
- (3R)-2,3-Dihydro-7-hydroxy-3-[(4-hydroxyphenyl)methyl]-4H-1-benzopyran-4-one (CAS 1178893-64-5)
- 3-((2,3-Dihydro-1h-inden-5-yl)oxy)-5-nitroaniline (CAS 310451-89-9)
- Methyl 2-(2,3-dihydro-1,4-benzodioxin-6-yl) benzoate (CAS 893736-68-0)
- Methyl 3-(2,3-dihydro-1,4-benzodioxin-6-yl) benzoate (CAS 893737-40-1)
- 1,6-Dihydro-5-(2-hydroxyphenyl)-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one 1159977-45-3 5-(2-Hydroxyphenyl)-1,6-dihydro-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one 5-(2-Hydroxyphenyl)-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 1159977-45-3)
- 3-(3,4-dihydro-2H-1,5-benzodioxepine-7-sulfinyl)propanoic acid (CAS 1333887-32-3)
- 1-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)azetidin-3-amine (CAS 1423028-22-1)
- 2,3-Dihydro-2-(3-nitrophenyl)-4H-1,3-benzoxazin-4-one (CAS 293326-06-4)
Recommended Standards
- 4-(3-(p-Tolyl)ureido)benzoic acid (CAS 74088-10-1)
- 4-(4-Hydroxy-phenylazo)benzoic acid ethyl ester (CAS 4418-89-7)
- 4-(1-Ethyl-6-hydroxy-1H-indazol-3-yl)benzene-1,3-diol (CAS 680610-92-8)
- 4-(4-Methoxybenzoyl)phenyl acetate (CAS 97576-09-5)
- Isovaleraldehyd-2,4-dinitrophenylhydrazone (CAS 2256-01-1)
- 2,3-Dibromo-4-(difluoromethoxy)benzonitrile (CAS 1805120-50-6)
- 2-Chloro-5-iodoquinazolin-4(3H)-one (CAS 1107694-74-5)
- 6-(Perfluoroethyl)picolinonitrile (CAS 1237431-49-0)
- (1-((5-Methylfuran-2-yl)methyl)piperidin-4-yl)methanol (CAS 1247757-00-1)
- 4-Amino-3-bromobenzenesulfonic acid (CAS 58847-89-5)
- S-(2-((tert-butoxycarbonyl)amino)ethyl) ethanethioate (CAS 114326-10-2)
- DL-Homocysteine (CAS 454-29-5)
- 1-Chloro-2-methoxy-6-methylnaphthalene (CAS 17580-31-3)
- Tau Peptide (277-291) trifluoroacetate salt (CAS 330456-40-1)
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