4-(Dimethylamino)benzaldehyde, Sigma-Aldrich®

Supplier: SIGMA-ALDRICH MICROSCOPY
Warning

Synonyms: Ehrlich's Reagent, 4-(N,N-Dimethylamino)benzaldehyde, p-Dimethylamino-Benzaldehyde, p-Dimethylaminobenzaldehyde, p-(Dimethylamino)benzaldehyde

D2004-100G D2004-25G D2004-500G
D2004-100GEA 173 EUR
D2004-100G D2004-25G D2004-500G
4-(Dimethylamino)benzaldehyde, Sigma-Aldrich®
4-(Dimethylamino)benzaldehyde

Suitable for histochemical demonstration of nitro blue tetrazolium reduction in neutrophils.


4-(Dimethylamino)benzaldehyde (DMAB or Ehrlich’s reagent) has been used as a color reagent for the determination of hydroxyproline level. It forms coloured condensation products (Schiff bases) with pyrroles and primary amines. DMAB is also suitable as a reagent to develop latent fingermarks on paper surfaces yielding impressions that are both coloured and photoluminescent. Forms coloured condensation products (Schiff bases) with pyrroles and primary amines.

Formula: (CH₃)₂NC₆H₄CHO
MW: 149,19 g/mol
Boiling Pt: 176…177 °C (1013 hPa)
Melting Pt: 72,..75 °C (lit.)
Density: 1,22 g/cm³
Flash Pt: 164 °C (closed cup)
Storage Temperature: RT
MDL Number: MFCD00003381
CAS Number: 100-10-7
EINECS: 202-819-0
Merck Index: 13,03257
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Specification Test Results

Appearance (Colour) White to Light Yellow
Appearance (Form) Powder
Solubility (Colour) Colourless to Light Yellow
Solubility (Turbidity), 50 mg/ml, EtOH Clear
Carbon 71.0 - 74.0%
Nitrogen 9.1 - 9.7 %
Purity (TLC) ≥99%

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