Trimethyl(pyren-1-ylethynyl)silane CAS 253271-87-3
| CAS No. | 253271-87-3 |
| Molecular Formula | C21H18Si |
| Molecular Weight | 298.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 298.45 g/mol gives Trimethyl(pyren-1-ylethynyl)silane distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Trimethyl(pyren-1-ylethynyl)silane (CAS 253271-87-3) is a high-purity analytical reference standard with the molecular formula C21H18Si and a molecular weight of 298.45 g/mol.
Structurally, Trimethyl(pyren-1-ylethynyl)silane (C21H18Si) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 298.45 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), Trimethyl(pyren-1-ylethynyl)silane 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 | C21H18Si |
| Molecular Weight | 298.45 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
Related Trimethyl Standards
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Recommended Standards
- O,O-dihexyl S-hydrogen phosphorodithioate (CAS 78-64-8)
- 6028-47-3 USM152F915 O,O-Bis(4-methylpentan-2-yl) S-hydrogen phosphorodithioate Bis(1,3-dimethylbutyl) dithiophosphate 2-Pentanol, 4-methyl-, 2-(hydrogen phosphorodithioate) 2-Pentanol, 4-methyl-, hydrogen phosphorodithioate O,O-Bis(1,3-dimethylbutyl) phosphorodithioate EINECS 227-900-8 UNII-USM152F915 2-Pentanol, 4-methyl-, O,O-diester with phosphorodithioic acid (CAS 6028-47-3)
- N1-(4-(2-(Trimethoxysilyl)ethyl)benzyl)ethane-1,2-diamine (CAS 75822-22-9)
- Vortioxetine (CAS 508233-74-7)
- 2-(3,4-Dihydronaphthalen-1(2H)-ylidene)malononitrile (CAS 2510-03-4)
- N-(Triphenylmethyl)formamide (CAS 20799-66-0)
- N-[(2-methylpyrimidin-4-yl)methylidene]hydroxylamine (CAS 28840-37-1)
- Ethyl 4-(2-(difluoromethoxy)phenyl)-2-methyl-5-oxo-5,7-dihydrofuro[3,4-b]pyridine-3-carboxylate (CAS 126335-08-8)
- (2S,3S)-2-((tert-Butoxycarbonyl)amino)-3-methoxybutanoic acid (CAS 630424-73-6)
- 4-(Benzyloxy)phenyl butyrate (CAS 6638-15-9)
- Benzyl azepan-3-ylcarbamate (CAS 1044561-15-0)
- (1-Amino-1-phosphonopropyl)phosphonic acid (CAS 15049-86-2)
- 2-(2-(Butylamino)pyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352501-07-5)
- [D-Ser8]-Semaglutide A (CAS CATO-C4X-2226116)
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