Butane-1,2-diylbis(triphenylsilane) CAS 18845-44-8
| CAS No. | 18845-44-8 |
| Molecular Formula | C40H38Si2 |
| Molecular Weight | 574.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Butane-1,2-diylbis(triphenylsilane) (CAS 18845-44-8), a certified reference material (molecular formula C40H38Si2, MW 574.90 g/mol) for analytical method development and quality control.
Structurally, Butane-1,2-diylbis(triphenylsilane) (C40H38Si2) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 22.0, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 574.90 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C40H38Si2 |
| Molecular Weight | 574.90 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
Related Butane Standards
- 4,4'-((Butane-1,4-diylbis(azaneylylidene))bis(methaneylylidene))bis(N,N-bis(2-chloroethyl)-3-methylaniline) (CAS 15332-60-2)
- (S)-Butane-1,2,4-triyl tris(4-methylbenzenesulfonate) (CAS 99520-83-9)
- Butane-1,3-diyl dipalmitate (CAS 33599-10-9)
- 2,2'-(Butane-1,4-diylbis(sulfanediyl))bis(N-(2-bromophenyl)acetamide) (CAS 301194-28-5)
- Butane-1,4-diyl distearate (CAS 33587-21-2)
- Butane-1,4-diyl ditetradecanoate (CAS 26719-58-4)
- 1,1'-(Butane-1,1-diylbis(azanediyl))bis(anthracene-9,10-dione) (CAS 88960-29-6)
- 9,9'-(Butane-1,4-diyl)bis(9H-fluorene-9-carboxylic acid) (CAS 1881321-31-8)
Recommended Standards
- Diheptadecyl hydrogen phosphate (CAS 146692-60-6)
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- 4-(2-(1-(Azetidin-3-yl)-1H-pyrazol-5-yl)-4-(trifluoromethyl)phenoxy)-5-chloro-2-fluoro-N-(1,3,4-thiadiazol-2-yl)benzenesulfonamide (CAS 1354818-96-4)
- 5-(2-Aminopyrimidin-4-yl)thiophene-2-carbonitrile (CAS 913322-72-2)
- 5-O-Desmethyl Donepezil-d5 (CAS 1189929-21-2)
- 1000958-55-3 4-Ethyl-1-[2-(piperidin-4-yl)ethyl]piperidine DTXSID60649257 (CAS 1000958-55-3)
- Ethyl 3-(chlorosulfonyl)-4-methoxybenzoate (CAS 262589-79-7)
- N-hydroxy-2-methylbutanimidamide hydrochloride (CAS 1390739-61-3)
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