Ethyl 4,4,4-trifluoro-3-hydroxy-2-methylbutanoate CAS 91600-33-8
| CAS No. | 91600-33-8 |
| Molecular Formula | C7H11F3O3 |
| Molecular Weight | 200.16 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 4,4,4-trifluoro-3-hydroxy-2-methylbutanoate.
Ethyl 4,4,4-trifluoro-3-hydroxy-2-methylbutanoate (CAS 91600-33-8) is a high-purity analytical reference standard with the molecular formula C7H11F3O3 and a molecular weight of 200.16 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, Ethyl 4,4,4-trifluoro-3-hydroxy-2-methylbutanoate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.16 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 | C7H11F3O3 |
| Molecular Weight | 200.16 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, water |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | F-containing |
Related Ethyl Standards
- 4,4,4-Trifluoro-1-phenylbut-2-yn-1-ol (CAS 128746-89-4)
- Butyl 3,3,3-trifluoro-2-hydroxypropanoate (CAS 149526-96-5)
- 1,1,1-Trifluoro-2-phenylbut-3-yn-2-ol (CAS 99727-20-5)
- 1,1,1-Trifluoro-4-phenylbut-3-en-2-one (CAS 3108-32-5)
- 1,1,1-Trifluoro-4-phenylbut-3-en-2-one (CAS 86571-25-7)
- 2,2,2-Trifluoro-N-[2-[(2-hydroxyethyl)amino]ethyl]-acetamide (CAS 364056-54-2)
- 4,4,4-Trifluoro-1-phenylbut-2-en-1-one (CAS 3108-34-7)
- Ethyl 4,4,4-trifluoro-3-hydroxy-3-methylbutanoate (CAS 649-67-2)
Recommended Standards
- Ethyl 2-fluoro-3-(furan-2-yl)-3-oxopropanoate (CAS 357286-30-7)
- Enzalutamide Impurity 36 (CAS 208122-06-9)
- Ethyl 5,5,5-trifluoro-4-hydroxypentanoate (CAS 70961-06-7)
- Cyclopropyl(3,4,5-trifluorophenyl)methanone (CAS 898790-36-8)
- N-Benzyl-2-(((5-nitrofuran-2-yl)methylene)amino)benzamide (CAS 139755-25-2)
- N,N-Diallyl-4-bromoaniline (CAS 30438-95-0)
- Methyl 2-[(cyanoacetyl)amino]-4,5-dimethylthiophene-3-carboxylate (CAS 545347-86-2)
- Malic Acid impurity 16 (CAS CATO-C4X-250916)
- 8-Oxa-2-azaspiro[4.5]Decan-6-one (CAS 1367930-29-7)
- 2-Bromo-7-chloropyrazolo[1,5-α]pyrimidine (CAS 1203705-58-1)
- 1,1,2,2-Tetrachlorotetrafluoropropane (CAS 2268-44-2)
- 7-Chloro-2,3-dihydro-1H-inden-1-amine (CAS 67120-37-0)
- 4-Fluoro-5-methoxy-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190322-36-1)
- Peptide Impurity 26 (CAS 1350456-66-4)
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