Triisopropyl((4-((4-((4-((trimethylsilyl)ethynyl)-phenyl)ethynyl)phenyl)ethynyl)phenyl)ethynyl)silane CAS 176977-36-9
| CAS No. | 176977-36-9 |
| Molecular Formula | C38H42Si2 |
| Molecular Weight | 554.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Triisopropyl((4-((4-((4-((trimethylsilyl)ethynyl)-phenyl)ethynyl)phenyl)ethynyl)phenyl)ethynyl)silane (CAS 176977-36-9), molecular formula C38H42Si2 and molecular weight 554.91 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a polycyclic aromatic system, Triisopropyl((4-((4-((4-((trimethylsilyl)ethynyl)-phenyl)ethynyl)phenyl)ethynyl)phenyl)ethynyl)silane is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 554.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C38H42Si2 |
| Molecular Weight | 554.91 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
Related Triisopropyl Standards
- Triisopropyl((2-methoxy-6-(methoxymethoxy)-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-1-yl)ethynyl)silane (CAS 2773311-57-0)
- Triisopropyl((6-(methoxymethoxy)-2-methyl-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-1-yl)ethynyl)silane (CAS 2771460-15-0)
- triisopropyl-[2-[6-(methoxymethoxy)-8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-naphthyl]ethynyl]silane (CAS 2621932-42-9)
- (E)-2,4,6-triisopropyl-N'-(2,2,2-trifluoro-1-(triphenylsilyl)ethylidene)benzenesulfonohydrazide (CAS 145574-05-6)
- Triisopropyl((5-(methylthio)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-2-yl)oxy)silane (CAS 2621937-59-3)
- Triisopropyl((4-((4-((trimethylsilyl)ethynyl)-phenyl)ethynyl)phenyl)ethynyl)silane (CAS 176977-35-8)
- Triisopropyl((4-((4-((4-((4-((trimethylsilyl)ethynyl)phenyl)-ethynyl)phenyl)ethynyl)phenyl)ethynyl)phenyl)ethynyl)silane (CAS 176977-40-5)
- Triisopropyl((8-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)naphthalen-1-yl)ethynyl)silane (CAS 2454490-92-5)
Recommended Standards
- Alfacalcidol Impurity 33 (CAS CATO-C4X-139333)
- Acryloxypropyl T-structure siloxane, 10-30 cSt (CAS 398128-81-9)
- 2,3,5-triiodo-N-(3-oxopropyl)benzamide (CAS CATO-C3D-262295)
- 5,5'''-Di-n-octyl-2,2':5',2'':5'',2'''-quaterthiophene (CAS 882659-01-0)
- Oxacillin Impurity 57 (CAS CATO-C4X-232157)
- Fmoc-3-iodo-Tyr-OH (CAS 134486-00-3)
- 6-(Methylthio)-9-propyl-9H-purine (CAS 89142-50-7)
- (4-Amino-1,2-phenylene)dimethanol (CAS 959049-91-3)
- (2-amino-3-fluoropyridin-4-yl)boronic acid (CAS 1310384-05-4)
- Pterine-6-carboxylic Acid (CAS 948-60-7)
- N-((1-Methyl-4,5,6,7-tetrahydro-1H-indazol-3-yl)methyl)-3-(thiophen-2-yl)acrylamide (CAS 1448139-70-5)
- Methyl 2-bromo-6-cyanoisonicotinate (CAS 1206249-85-5)
- 4-Chloro-2-methyl-6-((phenylsulfinyl)methyl)pyrimidine (CAS 339278-67-0)
- Des-Leu14-Tirzepatide (CAS CATO-CPTD788959)
Why CATO?
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