ethyl 2,2-difluoro-2-(1-hydroxycyclopentyl)acetate CAS 156544-74-0
| CAS No. | 156544-74-0 |
| Molecular Formula | C9H14F2O3 |
| Molecular Weight | 208.20 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 ethyl 2,2-difluoro-2-(1-hydroxycyclopentyl)acetate.
CATO supplies ethyl 2,2-difluoro-2-(1-hydroxycyclopentyl)acetate (CAS 156544-74-0), a certified reference material (molecular formula C9H14F2O3, MW 208.20 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, ethyl 2,2-difluoro-2-(1-hydroxycyclopentyl)acetate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 208.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H14F2O3 |
| Molecular Weight | 208.20 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2001 |
| Halogen Content | F-containing |
Related ethyl Standards
- 2,2-Difluoro-2-(1-hydroxy-3-methylcyclohexyl)acetic acid (CAS 1247778-32-0)
- 2,2-Difluoro-2-(1-hydroxy-4-methylcyclohexyl)acetic acid (CAS 1248938-79-5)
- ethyl 4,4-difluoro-1-hydroxycyclohexane-1-carboxylate (CAS 1393824-30-0)
- Methyl 4,4-difluoro-1-methoxycyclohexanecarboxylate (CAS 1447942-29-1)
- 2,2-Difluoro-2-(1-methoxycyclohexyl)acetic acid (CAS 1447943-65-8)
- 2,2-Difluoro-2-(1-hydroxycycloheptyl)acetic acid (CAS 681240-11-9)
- 6,8-Difluoro-2,3-dimethylquinolin-4-amine (CAS 1251053-77-6)
- 2,2-Difluoro-2-(5-isoquinolinyl)ethanamine (CAS 960119-20-4)
Recommended Standards
- 6-(Methylthio)-5-(trifluoromethyl)pyridin-3-amine (CAS 1642844-89-0)
- Isopropyl 3,3-difluoro-1-(hydroxymethyl)cyclobutanecarboxylate (CAS 1645565-02-1)
- (4-(Trifluoromethoxy)phenyl)methanethiol (CAS 175278-03-2)
- N-Methyl-5-((trifluoromethyl)thio)pyridin-2-amine (CAS 1383948-71-7)
- 1-tert-Butyl 2-chloromethyl (2S,4R)-4-(difluoromethoxy)pyrrolidine-1,2-dicarboxylate (CAS 2137062-11-2)
- (S)-1-(3-chloro-5-fluorophenyl)pentan-1-amine (CAS 1213857-41-0)
- N-((1-benzylpyrrolidin-3-yl)methyl)cyclopropanamine (CAS 91189-13-8)
- Methyl 2-hydroxydocosanoate (CAS 13980-17-1)
- (E)-1,2-bis(4-Chlorophenyl)ethene (CAS 1657-56-3)
- (1,10-Phenanthroline)(trifluoromethyl)(triphenylphosphine)copper(I) (CAS 1334890-93-5)
- 1-(2-Fluorophenyl)but-3-en-1-amine (CAS 1260692-11-2)
- Methyl 2-hydroxypent-4-enoate (CAS 84263-15-0)
- 1-Benzyl-5-iodo-1H-imidazole (CAS 941286-76-6)
- C-telopeptide (CAS 162929-64-8)
Why CATO?
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