5-((tert-Butyldimethylsilyl)oxy)pent-2-ynoic acid CAS 339196-09-7
| CAS No. | 339196-09-7 |
| Molecular Formula | C11H20O3Si |
| Molecular Weight | 228.36 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 5-((tert-Butyldimethylsilyl)oxy)pent-2-ynoic acid.
5-((tert-Butyldimethylsilyl)oxy)pent-2-ynoic acid (CAS 339196-09-7), molecular formula C11H20O3Si and molecular weight 228.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 5-((tert-Butyldimethylsilyl)oxy)pent-2-ynoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.36 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.
As a certified reference material (CRM), 5-((tert-Butyldimethylsilyl)oxy)pent-2-ynoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H20O3Si |
| Molecular Weight | 228.36 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2025 |
Related tert Standards
- 3-{[(tert-Butyldimethylsilyl)oxy]methyl}cyclopentan-1-one (CAS 173776-28-8)
- (3-((tert-Butyldimethylsilyl)oxy)bicyclo[1.1.1]pentan-1-yl)methanol (CAS 2782813-54-9)
- 2-((tert-Butyldimethylsilyl)oxy)cyclohexanone (CAS 74173-08-3)
- 3-((tert-Butyldimethylsilyl)oxy)cyclohexan-1-one (CAS 80684-13-5)
- 4-((tert-Butyldimethylsilyl)oxy)cyclohexan-1-one (CAS 55145-45-4)
- 2-(3-((Tert-butyldimethylsilyl)oxy)propoxy)acetonitrile (CAS 1430412-80-8)
- 5-(((tert-Butyldimethylsilyl)-oxy)methyl)pyrrolidin-2-one (CAS 177911-57-8)
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Recommended Standards
- (1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-pyrazol-5-yl)methanol (CAS 913346-46-0)
- Bis-TRIS-d19 (CAS 352534-93-1)
- (1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-pyrazol-3-yl)methanol (CAS 869558-95-2)
- N2,N2-diisobutyl-1,3,4-thiadiazole-2,5-diamine (CAS 897769-65-2)
- (+/-)-2-Bromobutyric-2,3,3,4,4,4-D6 acid (CAS 1219799-08-2)
- 2-(3-Methylthiophene-2-carbonyl)benzoic acid (CAS 1270783-35-1)
- 2-Amino-5-(difluoromethyl)-4-iodonicotinonitrile (CAS 1806839-58-6)
- Diethyl 2-(1-(tert-butoxycarbonyl)azetidin-3-yl)malonate (CAS 183062-95-5)
- n-(2,5-Difluorobenzyl)-2-methoxyethan-1-amine (CAS 1096800-08-6)
- (+)-Goniopypyrone (CAS 129578-07-0)
- 4-Bromo-6-nitroquinazoline (CAS 1356342-00-1)
- 5-Amino-2-(4-hydroxyphenyl)pyridazin-3(2H)-one (CAS 80234-29-3)
- 2-(2-Bromo-6-hydroxypyridin-4-yl)acetic acid (CAS 1393530-68-1)
- Tirzepatide Impurity 37 (CAS CATO-C4X-324037)
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