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33130

4-(Dimethylamino)benzaldehyde

≥99% (perchloric acid titration), puriss. p.a., reag. Ph. Eur.

Synonym(s):

Ehrlich’s reagent

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MXP 4,083.00

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MXP 4,083.00

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About This Item

Linear Formula:
(CH3)2NC6H4CHO
CAS Number:
100-10-7
Molecular Weight:
149.19
NACRES:
NA.21
PubChem Substance ID:
57648761
UNSPSC Code:
12352100
EC Number:
202-819-0
MDL number:
MFCD00003381
Beilstein/REAXYS Number:
606802

Key Documents

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Product Name

4-(Dimethylamino)benzaldehyde, puriss. p.a., reag. Ph. Eur., ≥99% (perchloric acid titration)

InChI key

BGNGWHSBYQYVRX-UHFFFAOYSA-N

InChI

1S/C9H11NO/c1-10(2)9-5-3-8(7-11)4-6-9/h3-7H,1-2H3

SMILES string

CN(C)c1ccc(C=O)cc1

agency

USP/NF
reag. Ph. Eur.

grade

puriss. p.a.

assay

≥99% (perchloric acid titration)

ign. residue

≤0.1% (as SO4)

loss

≤0.5% loss on drying

mp

72-75 °C (lit.)
73-75 °C

solubility

ethanol: 0.1 g/10 mL

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤50 mg/kg
K: ≤50 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤50 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

Quality Level

200

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1 of 4

This Item
109762156477D2004
4-(Dimethylamino)benzaldehyde puriss. p.a., reag. Ph. Eur., ≥99% (perchloric acid titration)

Sigma-Aldrich

33130

4-(Dimethylamino)benzaldehyde

4-(Dimethylamino)benzaldehyde 98%

Sigma-Aldrich

109762

4-(Dimethylamino)benzaldehyde

4-(Dimethylamino)benzaldehyde ACS reagent, 99%

Sigma-Aldrich

156477

4-(Dimethylamino)benzaldehyde

4-(Dimethylamino)benzaldehyde suitable for histochemical demonstration of nitro blue tetrazolium reduction in neutrophils

Sigma-Aldrich

D2004

4-(Dimethylamino)benzaldehyde

assay

≥99% (perchloric acid titration)

assay

98%

assay

99%

assay

≥99% (TLC)

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

200

solubility

ethanol: 0.1 g/10 mL

solubility

H2O: slightly soluble

solubility

alcohol: passes test (APHA ≤60), hydrochloric acid: passes test

solubility

ethanol: 50 mg/mL

mp

72-75 °C (lit.), 73-75 °C

mp

72-75 °C (lit.)

mp

72-75 °C (lit.)

mp

72-75 °C (lit.)

agency

USP/NF

agency

-

agency

-

agency

-

grade

puriss. p.a.

grade

-

grade

-

grade

-

Application

4-(Dimethylamino)benzaldehyde in micelle (sodium dodecyl sulphate) containing medium may be used for the quantification of hydroxyproline in meat samples by spectrophotometric methods.[1]
Forms colored condensation products (Schiff bases) with pyrroles and primary amines.

General description

4-(Dimethylamino)benzaldehyde is also commonly referred as Ehrlich′s reagent. Its crystal structure has been investigated by X-ray analysis. Its crystals belong to the monoclinic crystal system and exhibits space group P21/n.[2] 4-(Dimethylamino)benzaldehyde exhibits dual fluorescence. Its dipole moment in various excited states has been evaluated using their electronic spectra and Bilot-Kawski theory.[3]

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H317

Hazard Classifications

Skin Sens. 1B

Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

327.2 °F - closed cup

flash_point_c

164 °C - closed cup

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCP0197
BCCN2780
BCCL5641
BCCL1094
BCCH7024

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Determination of pyrrole derivatives and hydroxyproline with 4-(dimethylamino) benzaldehyde in a micellar medium.
Esteve-Romero JS, et al.
Analytical Letters, 27(8), 1557-1567 (1994)
4-(Dimethylamino) benzaldehyde.
Gao B and Zhu J-L.
Acta Crystallographica Section E, Structure Reports Online, 64(7), 1182-1182 (2008)
Kawski A, et al.
Chemical Physics Letters, 448(4), 208-212 (2007)
M Stefek et al.
Biochimica et biophysica acta, 1502(3), 398-404 (2000-11-09)
In the present work, pepsin digests of tail tendons from streptozotocin-diabetic rats were found to contain material that reacted rapidly at room temperature with p-dimethylaminobenzaldehyde (Ehrlich's reagent) to give an adduct with an absorbance spectrum characteristic of the Ehrlich chromogen
Rosario Zamora et al.
Journal of agricultural and food chemistry, 52(13), 4166-4171 (2004-06-24)
The Ehrlich reaction was optimized to determine the formation of pyrrolized phospholipids in edible oils in an attempt to understand the color reversion produced during the deodorization of poorly degummed edible oils. The procedure consisted of the treatment of the
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