ChemicalBook > CAS DataBase List > 4-Dimethylaminobenzaldehyde
4-Dimethylaminobenzaldehyde
- Product Name
- 4-Dimethylaminobenzaldehyde
- CAS No.
- 100-10-7
- Chemical Name
- 4-Dimethylaminobenzaldehyde
- Synonyms
- P-DIMETHYLAMINOBENZALDEHYDE;p-DAB;DIMETHYLAMINOBENZALDEHYDE;para-Dimethylaminobenzaldehyde;Ehrlichs;Benzaldehyde, 4-(dimethylamino)-;NSC 5517;amino)benzaL;EHRICH'S REAGENT;ERLICH'S REAGENT
- CBNumber
- CB4484990
- Molecular Formula
- C9H11NO
- Formula Weight
- 149.19
- MOL File
- 100-10-7.mol
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4-Dimethylaminobenzaldehyde Property
- Melting point:
- 72-75 °C(lit.)
- Boiling point:
- 176-177 °C (17 mmHg)
- Density
- 1.10 g/mL at 20 °C
- vapor pressure
- <0.1 hPa (20 °C)
- refractive index
- n20/D 1.417
- Flash point:
- 164 °C
- storage temp.
- 2-8°C
- solubility
- alcohol: passes test (APHA ≤60)
- pka
- pK1:1.647(+1) (25°C)
- form
- Liquid
- color
- White to pale yellow
- Odor
- Characteristic odor
- Water Solubility
- 0.3 g/L (20 ºC)
- Sensitive
- Air Sensitive
- Merck
- 14,3230
- BRN
- 606802
- Stability:
- Stable, but light sensitive. Incompatible with bases, strong oxidizing agents.
- InChIKey
- BGNGWHSBYQYVRX-UHFFFAOYSA-N
- LogP
- 1.810
- CAS DataBase Reference
- 100-10-7(CAS DataBase Reference)
- NIST Chemistry Reference
- Benzaldehyde, 4-(dimethylamino)-(100-10-7)
- EPA Substance Registry System
- Benzaldehyde, 4-(dimethylamino)- (100-10-7)
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Safety
- Hazard Codes
- C,Xn,Xi,F
- Risk Statements
- 36/37/38-52/53-22-67-41-37/38-10-66-37-34-20-20/21/22-36-11
- Safety Statements
- 7-16-24/25-26-61-45-39-36/37/39-36
- RIDADR
- UN 2920 8/PG 2
- WGK Germany
- 1
- RTECS
- CU5775000
- F
- 8
- Autoignition Temperature
- 445 °C
- TSCA
- Yes
- HS Code
- 29223900
- Toxicity
- LD50 orally in Rabbit: > 6400 mg/kg
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Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H317May cause an allergic skin reaction
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P272Contaminated work clothing should not be allowed out of the workplace.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.
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N-Bromosuccinimide Price
Sigma-Aldrich
- Product number
- 8.03057
- Product name
- 4-(Dimethylamino)benzaldehyde
- Purity
- for synthesis
- Packaging
- 100g
- Price
- $70.9
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 8.03057
- Product name
- 4-(Dimethylamino)benzaldehyde
- Purity
- for synthesis
- Packaging
- 250g
- Price
- $157
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 8.03057
- Product name
- 4-(Dimethylamino)benzaldehyde
- Purity
- for synthesis
- Packaging
- 1kg
- Price
- $405
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 67309
- Product name
- Kovac’s reagent for indoles
- Purity
- formicrobiology
- Packaging
- 100mL
- Price
- $102
- Updated
- 2024/03/01
Sigma-Aldrich
- Product number
- 109762
- Product name
- 4-(Dimethylamino)benzaldehyde
- Purity
- 98%
- Packaging
- 100g
- Price
- $58.8
- Updated
- 2024/03/01
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4-Dimethylaminobenzaldehyde Chemical Properties,Usage,Production
Chemical Properties
4-Dimethylaminobenzaldehyde is white to off white crystalline powder
Uses
4-Dimethylaminobenzaldehyde is used to prepare colorful Schiff base adducts with amines, pyrroles and indoles. It is often used in the Ehrlich reaction, test for the presence of indoles in a sample containing alkaloids and determination of hydrazine.
Uses
In the presence of oxygen, some bacteria, like E.coli, are able to split tryptophan into indole and alpha-aminopropionic acid. This reagent is for detecting the indole and identify the indole-positive and indole-negative microorganisms.
Uses
Forms colored condensation products (Schiff bases) with pyrroles1 and primary amines.2
Uses
In the presence of oxygen, some bacteria, like E. coli, are able to split tryptophan into indole and α-aminopropionic acid. This reagent is for detecting the indole and identifying the indole-positive and indole-negative microorganisms.
Uses
4-(Dimethylamino)benzaldehyde is used in Ehrlich's reagent for spectrophotometric determination of hydrazine as it reacts to form azo dyes. 4-(Dimethylamino)benzaldehyde is used for determination of u rine bilirubin and porphobilinogen.
Uses
Used as derivitizing agent.
Definition
4-Dimethylaminobenzaldehyde is a mamber of the class of benzaldehydes carrying a dimethylamino substituent at position 4. Used as an indicator for detection of indoles and hydrazine.
Synthesis Reference(s)
Journal of Heterocyclic Chemistry, 26, p. 1563, 1989
Organic Syntheses, Coll. Vol. 4, p. 331, 1963
Tetrahedron Letters, 30, p. 287, 1989 DOI: 10.1016/S0040-4039(00)95181-5
General Description
Kovac′s reagent for indoles is a solution of 4-(dimethylamino)benzaldehyde and hydrochloric acid in n-butanol.
Biochem/physiol Actions
Kovac′s reagent detects the indole and aids in identifying the indole-positive and indole-negative microorganisms. E. coli can split tryptophan into indole and α-aminopropionic acid in the presence of the enzyme tryptophanase. p-Aminobenzaldehyde present in the reagent reacts with indole to form a cherry-red complex, that is soluble in alcohol, ether, and chloroform. It is recommended to use glucose free media and peptone with a high tryptophan content for the test.
Purification Methods
Crystallise DMAB from water, hexane, or from EtOH (2mL/g), after charcoal treatment, by adding excess of water. Alternatively dissolve it in aqueous acetic acid, filter, and precipitate it with ammonia. Finally recrystallise it from EtOH. It is used for the detection of pyrroles [Iyer et al. J Org Chem 59 6038 1994]. [Beilstein 14 IV 51.]
4-Dimethylaminobenzaldehyde Preparation Products And Raw materials
Raw materials
N-Methylaniline
Benzylamine
Formaldehyde
Phosphorus oxychloride
Acetic acid
DIMETHYLANILINE
Hexamethylenetetramine
Ammonia
Preparation Products
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View Lastest Price from 4-Dimethylaminobenzaldehyde manufacturers
Henan Fengda Chemical Co., Ltd
- Product
- 4-Dimethylaminobenzaldehyde 100-10-7
- Price
- US $8.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2024-04-09
Hebei Duling International Trade Co. LTD
- Product
- 4-Dimethylaminobenzaldehyde 100-10-7
- Price
- US $70.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 100 tons
- Release date
- 2023-03-28
Hebei Mojin Biotechnology Co., Ltd
- Product
- 4-Dimethylaminobenzaldehyde 100-10-7
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-09-07
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