(m-Terphenyl-5'-yl)trimethylsilane CAS 128388-53-4
| CAS No. | 128388-53-4 |
| Molecular Formula | C21H22Si |
| Molecular Weight | 302.48 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures (m-Terphenyl-5'-yl)trimethylsilane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
(m-Terphenyl-5'-yl)trimethylsilane (CAS 128388-53-4), molecular formula C21H22Si and molecular weight 302.48 g/mol, is a CATO reference standard with documented purity and traceability.
(m-Terphenyl-5'-yl)trimethylsilane (C21H22Si) contains a polycyclic aromatic system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C21H22Si |
| Molecular Weight | 302.48 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Related m Standards
- 2'-Methyl-[1,1':4',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 869959-16-0)
- 2,2'-([1,1':4',1''-Terphenyl]-4,4''-Diyl)Diacetonitrile (CAS 1000559-50-1)
- p-terphenyl-4,4′′-dithiol (CAS 174706-21-9)
- 4''-Butyl-[1,1':4',1''-terphenyl]-4-carbonitrile (CAS 66044-94-8)
- [1,1':3',1''-Terphenyl]-4,4'',5'-tricarbaldehyde (CAS 1977585-07-1)
- [1,1':4',1''-Terphenyl]-4,4''-bis(carboximidamide) (CAS 851340-73-3)
- 1,1'-([1,1':4',1''-Terphenyl]-4,4''-diyl)bis(ethan-1-one) (CAS 4191-07-5)
- [1,1':4',1''-Terphenyl]-3,3'',5,5''-tetraamine (CAS 1374433-06-3)
Recommended Standards
- 1-(2-Amino-3-bromo-5-chlorophenyl)-2,2,2-trifluoroethanone (CAS 1260828-48-5)
- 3-Bromo-2-chloro-5-(trifluoromethyl)benzamide (CAS 1344087-79-1)
- 2-bromo-1-[2-chloro-6-(trifluoromethyl)pyridin-3-yl]ethan-1-one (CAS 1260783-51-4)
- 6-O-(Triisopropylsilyl)-D-glucal (CAS 137915-37-8)
- tert-Butyl (2-iodothiophen-3-yl)carbamate (CAS 149704-10-9)
- 1-Benzyl 4-methyl (2S)-2-{[(benzyloxy)carbonyl]amino}butanedioate (CAS 1820579-34-7)
- (S)-2-(3-Phenylpropyl)tetrahydrofuran (CAS 528840-70-2)
- 3-Methylhexahydro-1H-pyrido[1,2-a]pyrazine-1,6(2H)-dione (CAS 325953-71-7)
- H-Lys(6-oxo,Z)-OH (CAS 83793-27-5)
- 2-(2-Bromopyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352512-16-3)
- 3-Amino-N-(3,4-dimethylphenyl)-6-ethyl-5,6,7,8-tetrahydrothieno[2,3-b]quinoline-2-carboxamide (CAS 625370-16-3)
- (3-Bromo-4-methoxybenzyl)-cyclopropyl-amine (CAS 1152928-07-8)
- 1-(3-(Methylthio)propyl)-3-phenylthiourea (CAS 99983-00-3)
- Semaglutide Impurity 128 (CAS 2490269-78-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com