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4-Dimethylaminobenzaldehyde

4-Dimethylaminobenzaldehyde
4-Dimethylaminobenzaldehyde structure
CAS No.
100-10-7
Chemical Name:
4-Dimethylaminobenzaldehyde
Synonyms
p-DAB;NSC 5517;Ehrlichs;amino)benzaL;ERLICH'S REAGENT;EHRICH'S REAGENT;EHRLICH'S REAGENT;reagensehrlichovo;HYDRAZINE-REAGENT;AKOS BBS-00003188
CBNumber:
CB4484990
Molecular Formula:
C9H11NO
Formula Weight:
149.19
MOL File:
100-10-7.mol

4-Dimethylaminobenzaldehyde Properties

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)
form 
Liquid
pka
pK1:1.647(+1) (25°C)
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
CAS DataBase Reference
100-10-7(CAS DataBase Reference)
EWG's Food Scores
1
FDA UNII
V7E88PR1YB
NIST Chemistry Reference
Benzaldehyde, 4-(dimethylamino)-(100-10-7)
EPA Substance Registry System
Benzaldehyde, 4-(dimethylamino)- (100-10-7)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS02,GHS07,GHS05
Signal word  Danger
Hazard statements  H225-H319-H336-H226-H290-H314-H332-H335-H302-H315-H318
Precautionary statements  P280a-P304+P340-P405-P501a-P264-P270-P301+P312+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P501-P210-P261-P305+P351+P338-P280-P303+P361+P353-P304+P340+P310
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
8
Autoignition Temperature 445 °C
TSCA  Yes
HS Code  29223900
Toxicity LD50 orally in Rabbit: > 6400 mg/kg
NFPA 704
0
1 0

4-Dimethylaminobenzaldehyde price More Price(37)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.03057 4-(Dimethylamino)benzaldehyde for synthesis 100-10-7 100 g $48.28 2021-03-22 Buy
Sigma-Aldrich 109762 4-(Dimethylamino)benzaldehyde 98% 100-10-7 100g $50.2 2021-03-22 Buy
Sigma-Aldrich 1.03058 4-(Dimethylamino)benzaldehyde GR for analysis Reag. Ph Eur 100-10-7 25 g $80.57 2021-03-22 Buy
Sigma-Aldrich 8.03057 4-(Dimethylamino)benzaldehyde for synthesis 100-10-7 250 g $106.37 2021-03-22 Buy
Sigma-Aldrich 1.03058 4-(Dimethylamino)benzaldehyde GR for analysis Reag. Ph Eur 100-10-7 100 g $148.92 2021-03-22 Buy

4-Dimethylaminobenzaldehyde Chemical Properties,Uses,Production

Chemical Properties

4-Dimethylaminobenzaldehyde is white to off white crystalline powder

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

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

Preparation Products


4-Dimethylaminobenzaldehyde Suppliers

Global( 498)Suppliers
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View Lastest Price from 4-Dimethylaminobenzaldehyde manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-08-26 4-Dimethylaminobenzaldehyde
100-10-7
US $11.00 / ASSAYS 1ASSAYS 99% 10000kg Hebei Crovell Biotech Co Ltd
2021-07-13 4-Dimethylaminobenzaldehyde
100-10-7
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd
2021-07-10 4-Dimethylaminobenzaldehyde
100-10-7
US $15.00-10.00 / KG 1KG 99%+ HPLC Monthly supply of 1 ton Zhuozhou Wenxi import and Export Co., Ltd

4-Dimethylaminobenzaldehyde Spectrum


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