(S)-Methyl 2-((tert-butoxycarbonyl)amino)-3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)propanoate CAS 942070-96-4
| CAS No. | 942070-96-4 |
| Molecular Formula | C19H30BNO6S |
| Molecular Weight | 411.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(S)-Methyl 2-((tert-butoxycarbonyl)amino)-3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)propanoate (CAS 942070-96-4) is a high-purity analytical reference standard with the molecular formula C19H30BNO6S and a molecular weight of 411.32 g/mol.
The molecular framework of (S)-Methyl 2-((tert-butoxycarbonyl)amino)-3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl)propanoate (C19H30BNO6S) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C19H30BNO6S |
| Molecular Weight | 411.32 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- (2R,3S,4S,5R)-2-(Acetoxymethyl)-2-azido-5-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)tetrahydrofuran-3,4-diyl diacetate (CAS 2459945-87-8)
- (Z)-1-(3-(isoindolin-2-yl)phenyl)ethan-1-one O-(2,6-dichlorobenzyl) oxime (CAS 861207-15-0)
- 158076-69-8 1TO9EBC07Z 2,2',3',4,4',5,5'-Heptachloro-3-biphenylol UNII-1TO9EBC07Z (1,1'-Biphenyl)-3-ol, 2,2',3',4,4',5,5'-heptachloro- 2,2',3,4,4',5,5'-Heptachloro-3'-hydroxy-1,1'-biphenyl 3'-Hydroxy-2,2',3,4,4',5,5'-heptachlorobiphenyl 3-Hydroxy-2,2',3',4,4',5,5'-heptachlorobiphenyl 3'-Hydroxy-PCB 180 (CAS 158076-69-8)
- 1-(2-(1H-indol-3-yl)ethyl)-3-(2,6-dichlorobenzyl)-2-methylpyridin-4(1H)-one (CAS 860785-21-3)
- methyl 2-(1-methyl-1H-pyrazol-4-yl)acetate (CAS 1248548-23-3)
- 2-Methyl-4-trifluoromethyl-pyrimidine-5-carbaldehyde (CAS 1260783-89-8)
- 1-(4-Ethoxyphenyl)pentan-1-amine (CAS 1020936-78-0)
- 4-Methyl-1-(2-pyrazinyl)-4-piperidinamine (CAS 412355-93-2)
- tert-Butyl (3-amino-4-methoxyphenyl)carbamate (CAS 1267028-34-1)
- N- Nitroso Isoprenaline Impurity 37 (CAS CATO-C4X-277537)
- 6-[(E)-2-(4-Methylphenyl)ethenyl]-4-[(Z)-2-(4-methylphenyl)ethenyl]-2-(prop-2-yn-1-ylsulfanyl)pyridine-3-carbonitrile (CAS 303985-49-1)
- (1S,4S,5S)-tert-Butyl 5-amino-2-azabicyclo[2.2.1]heptane-2-carboxylate (CAS 1256107-32-0)
- 7-Chloro-2,2,3-trimethyl-2,3-dihydroquinazolin-4(1H)-one (CAS 1268332-43-9)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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