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39070 Fluka

4-(Dimethylamino)benzaldehyde

for the determination of hydroxyproline, ≥99.0% (HPLC)

Synonym: Ehrlich’s reagent

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Properties

Related Categories Aldehydes, Amines, Amino Acids, Analytical Reagents, Analytical Reagents for General Use,
assay   ≥99.0% (HPLC)
quality   for the determination of hydroxyproline
ign. residue   ≤0.1% (as SO4)
loss   ≤0.5% loss on drying
mp   72-75 °C(lit.)
  73-75 °C
solubility   concentrated sulfuric acid: soluble0.1 g/10 mL
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤10 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.

Other Notes

Analytical reagent for the determination of amino acids and peptides, amines, indoles, hydrazines and hydrogen peroxides; spray reagent for tryptophan; For the determination of tryptophan in proteins; Used in microbiology as test reagent for the identification of indole-producing microorganisms.; For Kovacs reagent dissolve 10 g 4-dimethylamino-benzaldehyde in 150 mL 1-pentanol and add 50 mL hydrochloric acid conc.

Legal Information

FLUKA is a registered trademark of Honeywell Specialty Chemicals Seelze GmbH.

Price and Availability

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
Protocols & Articles

Articles

Determination of Water Content in 4-Dimethylaminobenzaldehyde Using Karl Fischer Titration

Aldehydes have a tendency to form acetals. At the same time water is formed. Water is bound in the bisulfite addition. Short chain aldehydes show a strong tendency to acetal formation, aromatic aldeh...
Keywords: Size-exclusion chromatography, Titrations

Peer-Reviewed Papers
15

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