4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde
Also known as: 4-(tert-Butyldimethylsiloxy)benzaldehyde, 4-(t-Butyldimethylsilyloxy)benzaldehyde, 4-((tert-Butyldimethylsilyl)oxy)benzaldehyde, 4-[tert-Butyl(dimethyl)silyl]oxybenzaldehyde, Benzaldehyde, 4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]-, 4-Formylphenyl tert-butyldimethylsilyl ether, p-(tert-Butyldimethylsiloxy)benzaldehyde, tert-Butyldimethylsilyl 4-formylphenyl ether
4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde (CAS 120743-99-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C13H20O2Si and a molecular weight of 236.38200 g/mol. Key properties include a boiling point of 224-226ºC(lit.), a density of 0.957 g/mL at 25ºC(lit.) and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H318 — Causes serious eye damage and H413. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 120743-99-9
- Jingsj CID
- J-1444315-3
- Molecular Formula
- C13H20O2Si
- Molecular Weight
- 236.38200 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 224-226ºC(lit.) |
|---|---|
| Density | 0.957 g/mL at 25ºC(lit.) |
| Flash Point | >110.0 °C |
| Exact Mass | 236.12300 |
| PSA | 26.30000 |
| LogP | 3.88310 |
| Vapor Pressure | 0.00467mmHg at 25°C |
| Refractive Index | n20/D 1.5110(lit.) |
GHS Safety & Compliance
- H318 — Causes serious eye damage
- H413
Frequently Asked Questions
What is the CAS number of 4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde?
The CAS number of 4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde is 120743-99-9.
What are the molecular formula and molecular weight of 4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde?
4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde has molecular formula C13H20O2Si and molecular weight 236.38200 g/mol.
Is 4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde hazardous?
4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde has GHS signal word Danger and hazard statements H318 — Causes serious eye damage; H413.
What are the upstream and downstream products of 4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde?
For 4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde, Upstream Products: 4-Hydroxybenzaldehyde, tert-Butyldimethylchlorosilane, tert-Butyl[4-(dimethoxymethyl)phenoxy]dimethylsilane; Downstream Products: Coelenterazine, (Z)-Pterostilbene, Pterostilbene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-[(tert-Butyldimethylsilyl)oxy]benzaldehyde (CAS 120743-99-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1444315-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.