4-Diethylaminobenzaldehyde
Also known as: 4-(Diethylamino)benzaldehyde, p-(Diethylamino)benzaldehyde, N,N-Diethyl-4-aminobenzaldehyde, 4-Diethylaminobenzoaldehyde, Benzaldehyde, 4-(diethylamino)-, P-FORMYL-N,N-DIETHYLANILINE
4-Diethylaminobenzaldehyde (CAS 120-21-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H15NO and a molecular weight of 177.243 g/mol. Key properties include a melting point of 37-41 °C(lit.), a boiling point of 329.6±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 110.2±12.0 °C. It is classified under GHS with signal word Warning and hazard statements H312 — Harmful in contact with skin, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 120-21-8
- Jingsj CID
- J-38665-2
- Molecular Formula
- C11H15NO
- Molecular Weight
- 177.243 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 37-41 °C(lit.) |
|---|---|
| Boiling Point | 329.6±0.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 110.2±12.0 °C |
| Exact Mass | 177.115356 |
| PSA | 20.31000 |
| LogP | 2.87 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.571 |
| Additional Property | insoluble |
GHS Safety & Compliance
- H312 — Harmful in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Luo M, et al. Diethylaminobenzaldehyde is a covalent, irreversible inactivator of ALDH7A1. ACS Chem Biol. 2015 Mar 20;10(3):693-7. [2]. Araki N, et al. Screening for androgen receptor activities in 253 industrial chemicals by in vitro reporter gene assays using AR-EcoScreen cells. Toxicol In Vitro. 2005 Sep;19(6):831-42. |
|---|
Customs & Trade Information
| HS Code | 2922399090 |
|---|---|
| Summary | 2922399090 other amino-aldehydes, amino-ketones and amino-quinones, other than those containing more than one kind of oxygen function; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Diethylaminobenzaldehyde?
The CAS number of 4-Diethylaminobenzaldehyde is 120-21-8.
What are the molecular formula and molecular weight of 4-Diethylaminobenzaldehyde?
4-Diethylaminobenzaldehyde has molecular formula C11H15NO and molecular weight 177.243 g/mol.
Is 4-Diethylaminobenzaldehyde hazardous?
4-Diethylaminobenzaldehyde has GHS signal word Warning and hazard statements H312 — Harmful in contact with skin; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4-Diethylaminobenzaldehyde?
For 4-Diethylaminobenzaldehyde, Upstream Products: N,N-Diethylaniline, Trimethyl orthoformate, N,N-Dimethylformamide; Downstream Products: 4-(Diethylamino)benzoic acid, N,N-Diethyl-4-ethynylaniline, Lithium trimethylsilanolate.
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-Diethylaminobenzaldehyde (CAS 120-21-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38665-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.