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33130 Sigma-Aldrich

4-(Dimethylamino)benzaldehyde

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

Synonym: Ehrlich’s reagent

  • CAS Number 100-10-7

  • Linear Formula (CH3)2NC6H4CHO

  • Molecular Weight 149.19

  •  Beilstein Registry Number 606802

  •  EC Number 202-819-0

  •  MDL number MFCD00003381

  •  PubChem Substance ID 57648761

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Properties

Related Categories Aldehydes, Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Building Blocks,
grade   Reag. Ph. Eur.
InChI Key   BGNGWHSBYQYVRX-UHFFFAOYSA-N
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: soluble0.1 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

Description

Application

Forms colored condensation products (Schiff bases) with pyrroles and primary amines.

4-(Dimethylamino)benzaldehyde in micelle (sodium dodecyl sulphate) containing medium may be used for the quantification of hydroxyproline in meat samples by spectrophotometric methods.

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. 4-(Dimethylamino)benzaldehyde exhibits dual fluorescence. Its dipole moment in various excited states has been evaluated using their electronic spectra and Bilot-Kawski theory.

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Laboratory Gloves
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
CU5775000
Flash Point(F) 
327.2 °F
Flash Point(C) 
164 °C

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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