(E)-3-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acrylic acid 3-[2,2-Difluorobenzo[1,3]-dioxol-5-yl]acrylic acid 721-13-1 CAS 721-13-1
| CAS No. | 721-13-1 |
| Molecular Formula | C10H6F2O4 |
| Molecular Weight | 228.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 228.15 g/mol gives (E)-3-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acrylic acid 3-[2,2-Difluorobenzo[1,3]-dioxol-5-yl]acrylic acid 721-13-1 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(E)-3-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acrylic acid 3-[2,2-Difluorobenzo[1,3]-dioxol-5-yl]acrylic acid 721-13-1 (CAS 721-13-1), molecular formula C10H6F2O4 and molecular weight 228.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (E)-3-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acrylic acid 3-[2,2-Difluorobenzo[1,3]-dioxol-5-yl]acrylic acid 721-13-1 (C10H6F2O4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 228.15 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C10H6F2O4 |
| Molecular Weight | 228.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F-containing |
Related E Standards
- (E)-3-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)acrylic acid (CAS 387350-55-2)
- (1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)cyclopropyl)methanol (CAS 1890666-12-2)
- Methyl 5,7-difluorobenzo[b]thiophene-2-carboxylate (CAS 550998-57-7)
- (R)-2-(2,2-difluorobenzo[d][1,3]dioxol-4-yl)pyrrolidine hydrochloride (CAS 1213858-67-3)
- (1-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)cyclopropyl)methanamine (CAS 1500197-38-5)
- (R)-1-(2,2-difluorobenzo[d][1,3]dioxol-5-yl)butan-1-amine (CAS 1212951-36-4)
- (S)-1-(2,2-difluorobenzo[d][1,3]dioxol-4-yl)butan-1-amine (CAS 1213338-62-5)
- (S)-1-(2,2-difluorobenzo[d][1,3]dioxol-4-yl)-2-methylpropan-1-amine (CAS 1213579-51-1)
Recommended Standards
- N-(2-(Methylselanyl)phenyl)acetamide (CAS 89723-06-8)
- 1,5-Dimethoxy-2,4-dinitrobenzene (CAS 1210-96-4)
- 6-Hydroxy-5-[(trifluoromethyl)sulfanyl]pyrimidine-2,4(1H,3H)-dione (CAS 38009-04-0)
- 4,4,5,5-Tetramethyl-2-(tetrahydro-2h-thiopyran-4-yl)-1,3,2-dioxaborolane (CAS 1264198-70-0)
- (R)-1-(5-Chlorothiophen-2-yl)ethan-1-amine (CAS 303070-27-1)
- 3-Keto-N-aminoethyl-N'-aminocaproyldihydrocinnamoyl Cyclopamine (CAS 306387-90-6)
- 51094-78-1 Tantalum pentabutanolate 1-Butanol, tantalum(5+) salt (5:1) 1-Butanol, tantalum(5+) salt Butanol, tantalum salt EINECS 256-962-9 (CAS 51094-78-1)
- Tert-butyl (1-benzyl-4,6-dimethylpiperidin-3-yl)carbamate (CAS 1315365-42-4)
- (1R,2S)-2-(2,3-dimethylbenzoyl)cyclohexane-1-carboxylic acid (CAS 733742-67-1)
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- 2-Methoxy-3-(3-pyrrolinomethyl) benzophenone (CAS 898789-65-6)
- 1-Aminocyclopropanecarbothioamide (CAS 1159877-97-0)
- 2,4,6-Trifluoro-3,5-diiodoaniline (CAS 923294-24-0)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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