ChemicalBook > CAS DataBase List > 4-Diethylaminobenzaldehyde

4-Diethylaminobenzaldehyde

Product Name: 4-Diethylaminobenzaldehyde
CAS No.: 120-21-8
Chemical Name: 4-Diethylaminobenzaldehyde
Synonyms: DEAB;4-(N,N-DIETHYLAMINO)BENZALDEHYDE;N,N-Diethylaminobenzaldehyde;4-DiethyL;DEAB - NSC 8782;AKOS BBS-00003202;4-Diethylaminobenzal;LABOTEST-BB LT00924385;p-Diethylaminobenzaldehyd;4-DIETHYLAMINOBENZALDEHYDE
CBNumber: CB5127559
Molecular Formula: C11H15NO
Formula Weight: 177.24
MOL File: 120-21-8.mol

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4-Diethylaminobenzaldehyde Property

Melting point:: 37-41 °C(lit.)
Boiling point:: 174 °C7 mm Hg(lit.)
Density: 1.03 g/cm3
refractive index: 1.5302 (estimate)
Flash point:: >230 °F
storage temp.: Store below +30°C.
solubility: 2.5g/l
pka: 3.36±0.32(Predicted)
form: Coarse Crystals, Chunks or Crystalline Solid
color: Brown to green to black
Water Solubility: insoluble
Sensitive: Air Sensitive
BRN: 511102
CAS DataBase Reference: 120-21-8(CAS DataBase Reference)
NIST Chemistry Reference: Benzaldehyde, 4-(diethylamino)-(120-21-8)
EPA Substance Registry System: Benzaldehyde, 4-(diethylamino)- (120-21-8)

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Safety

Hazard Codes: Xi,N,Xn
Risk Statements: 36/37/38-50/53-21/22
Safety Statements: 26-36-61-60-36/37
WGK Germany: 2
RTECS: CU5612850
TSCA: Yes
HS Code: 29223990
Toxicity: mouse,LD50,intraperitoneal,700mg/kg (700mg/kg),National Technical Information Service. Vol. OTS0534444,

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H312Harmful in contact with skin

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: D86256
Product name: 4-Diethylaminobenzaldehyde
Purity: 99%
Packaging: 100g
Price: $60.9
Updated: 2025/07/31

TCI Chemical

Product number: D0463
Product name: 4-Diethylaminobenzaldehyde
Purity: >99.0%(GC)(T)
Packaging: 25g
Price: $30
Updated: 2025/07/31

TCI Chemical

Product number: D0463
Product name: 4-Diethylaminobenzaldehyde
Purity: >99.0%(GC)(T)
Packaging: 100g
Price: $68
Updated: 2025/07/31

TCI Chemical

Product number: D0463
Product name: 4-Diethylaminobenzaldehyde
Purity: >99.0%(GC)(T)
Packaging: 500g
Price: $330
Updated: 2025/07/31

Matrix Scientific

Product number: 139230
Product name: 4-(Diethylamino)benzaldehyde
Purity: 95%+
Packaging: 2.500g
Price: $215
Updated: 2021/12/16

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4-Diethylaminobenzaldehyde Chemical Properties,Usage,Production

Chemical Properties

dark brown to green coarse crystals or

Uses

4-Diethylaminobenzaldehyde is used in the preparation of 5-(4-diethylamino-benzylidene)-selenazolidine-2,4-dione by using aqueous methylamine as a reagent.

Definition

ChEBI: A member of the class of benzaldehydes carrying a diethylamino substituent at position 4.

Synthesis

459-57-4

109-89-7

120-21-8

GENERAL STEPS: 4-Fluorobenzaldehyde (2.5 g, 20 mmol), diethylamine (5.12 g, 70 mmol), potassium carbonate (4.15 g), dimethylsulfoxide (25.0 mL), and Aliquat-336 (0.05 mL) were added to a 100 mL single-necked flask equipped with a stirrer and condenser. The reaction mixture was stirred at 95°C for 72 hours and subsequently cooled to room temperature. Upon addition of ice water, a yellow precipitate precipitated. The crude product was washed 2-3 times with cold water and recrystallized by ethanol to give N,N-diethyl-4-aminobenzaldehyde as a yellow solid. Yield: 92%. Elemental analysis calculated values (C11H15NO): C, 74.54; H, 8.53; N, 7.90; measured values: C, 74.67; H, 8.58; N, 7.85. 1H NMR (500 MHz, CDCl3, ppm) δ 9.71 (s, 1H), 7.72 (q, 2H), 6.69 (d, J = 8.8 Hz, 2H) , 3.46 (q, 4H), 1.24 (t, 6H). Step 2: Potassium metal (0.78 g, 20 mmol) was added to tert-butanol (11.3 mL, 120 mmol) in a 50 mL single-neck flask equipped with a condenser. After the potassium was fully reacted, 4-methylpyridine (0.975 mL, 10 mmol) and N,N-diethyl-4-aminobenzaldehyde (1.77 g, 10 mmol) were added. The mixture was heated with stirring at 80°C for 2 hours. After evaporation to remove the tert-butanol, 200 mL of dichloromethane was added and washed once with 200 mL of ice water. The aqueous phase was extracted three times with dichloromethane. The organic phases were combined, dried over anhydrous sodium sulfate, the solvent was evaporated and the crude product was recrystallized from toluene. Yield: 86%.1H NMR (500 MHz, DMSO, ppm) δ 8.43 (d, J = 5.2 Hz, 2H), 7.42 (t, J = 8.8 Hz, 2H), 7.23 (d, J = 5.4 Hz, 2H), 7.04 (d, J = 8.7 Hz, 2H), 6.27-6.66 (m, 2H), 3.39 (m, 4H), 1.13 (m, 4H). 4H), 1.13 (t, 6H).13C NMR (500 MHz, CDCl3, ppm) δ 148.56-146.96 (m, py), 134.57 (s, py), 128.86 (s, benzene), 120.51-119.95 (d, benzene), 111.56 (s, CH=CH), 44.47 (s, CH2), 12.62 (d, J = 8.7 Hz, 2H), 6.27-6.66 (m, 2H), 3.39 (m, 2H), 3.39 (m, 6H). CH2), 12.62 (s, CH3). Calculated elemental analysis (C17H20N2, EI-MS: 253.3): C, 80.91; H, 7.99; N, 11.10; measured: C, 80.76; H, 7.91; N, 11.01. IR (KBr, cm-1): 3026 w, 2974 m, 1581 s, 1520 vs, 1408 m, 1355 m. 1329 w, 1272 m, 1185 m, 1158 m, 1074 w, 972 w, 818 m, 795 m, 518 w. Melting Point: 258°C.

References

[1] Dyes and Pigments, 2015, vol. 120, p. 175 - 183
[2] Journal of Molecular Structure, 2007, vol. 829, # 1-3, p. 202 - 207
[3] Journal of Materials Chemistry, 2012, vol. 22, # 33, p. 16927 - 16932
[4] Journal of Medicinal Chemistry, 2012, vol. 55, # 19, p. 8483 - 8492,10
[5] Journal of Medicinal Chemistry, 2012, vol. 55, # 19, p. 8483 - 8492

4-Diethylaminobenzaldehyde Preparation Products And Raw materials

Raw materials

2-Ethylaniline Acetic acid Hexamethylenetetramine

Preparation Products

2-[2-[4-(diethylamino)phenyl]vinyl]-1,3,3-trimethyl-3H-indolium chloride

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View Lastest Price from 4-Diethylaminobenzaldehyde manufacturers

Zhuozhou Wenxi import and Export Co., Ltd

Product: 4-Diethylaminobenzaldehyde 120-21-8
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-07-10

Zhuozhou Wenxi import and Export Co., Ltd

Product: 4-Diethylaminobenzaldehyde 120-21-8
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-07-08

Career Henan Chemical Co

Product: 4-Diethylaminobenzaldehyde 120-21-8
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: Customized
Release date: 2019-05-25

120-21-8, 4-DiethylaminobenzaldehydeRelated Search:

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LABOTEST-BB LT00924385

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AKOS BBS-00003202

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(diethylamino)benzaldehyde

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benzaldehyde,-(diethylamino)-

Benzaldehyde,4-(diethylamino)-

N,N-Diethylaminobenzaldehyde

DEAB

4-(diethylamino)-benzaldehyd

DEAB - NSC 8782

4-Diethylaminobenzaldehyde &gt

4-DiethyL

4-Diethylaminobenzaldehyde USP/EP/BP

Factory supply 4-Diethylaminobenzaldehyde CAS 120-21-8

p-Diethylaminobenzaldhyde pure, 99%

Myristoyl Pentapeptide-17 959610-30-1

PARA DI ETHYL AMINO BENZALDEHYDE

4-4-Diethylaminobenzaldehyde

4-Diethylaminobenzaldehyde, 10 mM in DMSO

120-21-8

C2H52NC6H4CHO

Organic Building Blocks

Aldehydes

Building Blocks

Carbonyl Compounds

C10 to C21

ALDEHYDE

Pyridines

electronic

Aromatic Aldehydes & Derivatives (substituted)

Aldehydes

C10 to C21

Carbonyl Compounds