Bis(trimethylsilyl)maleate CAS 18457-04-0
| CAS No. | 18457-04-0 |
| Molecular Formula | C9H20O4Si2 |
| Molecular Weight | 248.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Bis(trimethylsilyl)maleate (CAS 18457-04-0), molecular formula C9H20O4Si2 and molecular weight 248.42 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H20O4Si2, Bis(trimethylsilyl)maleate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 248.42 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
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 | C9H20O4Si2 |
| Molecular Weight | 248.42 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) | 0.0 |
| CAS Registry Year (est.) | 1962 |
Related Bis Standards
- 1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-benzo[d]imidazole (CAS 101226-37-3)
- 1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-pyrrolo[2,3-b]pyridine (CAS 879132-46-4)
- 3,5-Bis(trimethylsilyl)isonicotinonitrile (CAS 827616-49-9)
- 1-[(Trimethylsilyl)ethynyl]-4-(trifluoromethyl)benzene 40230-95-3 [4-(Trifluoromethyl)phenyl](trimethylsilyl)acetylene (CAS 40230-95-3)
- 2,5-Bis(trimethylsilyl)bicyclo[4.2.0]octa-1,3,5-triene (CAS 132170-05-9)
- Tris(trimethylsilyl)silane (CAS 1873-77-4)
- Ethyl 3-(trimethylsilyl)propanoate (CAS 17728-88-0)
- 5-Phenyl-3-((trimethylsilyl)methyl)oxazolidin-4-one (CAS 671777-88-1)
Recommended Standards
- Thioctic acid Impurity 25 (CAS 728854-75-9)
- (2-(Dimethyl(thiophen-2-yl)silyl)phenyl)methanol (CAS 853955-72-3)
- S,S-Di-tert-butyl propanebis(thioate) (CAS 81787-33-9)
- PCP-D5 (Phencyclidine-D5) (CAS 60124-86-9)
- Tert-butyl 5-(((trifluoromethyl)sulfonyl)oxy)-3,6-dihydropyridine-1(2H)-carboxylate (CAS 180691-65-0)
- 3,4-Dimethylbenzenesulfonic acid (CAS 618-01-9)
- 2',4'-Dichloro-7'H-spiro[cyclobutane-1,6'-thieno[3,2-d]pyrimidine] (CAS 1422354-56-0)
- (3R,4R)-1-(tert-Butoxycarbonyl)-4-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidine-3-carboxylic acid (CAS 955138-24-6)
- 6-((4-Chlorophenyl)sulfonyl)-2-phenyl-5-(trifluoromethyl)pyridazin-3(2H)-one (CAS 866131-12-6)
- 2-chloroethyl 2-hydroxypropanoate (CAS 75066-31-8)
- 2-Amino-4-hydroxy-6-(trifluoromethyl)pyridine (CAS 1227581-77-2)
- N-(3-Acetylphenyl)-[1,1'-biphenyl]-4-carboxamide (CAS 316138-75-7)
- 2-((6-Bromo-2,8-dimethylquinolin-4-yl)thio)acetic acid (CAS 1429902-72-6)
- Liraglutide(3-31)TFA Salt (CAS CATO-C4X-19921)
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