VWR 4-(Dimethylamino)benzaldehyde ≥99%, AnalaR NORMAPUR® Reag. Ph. Eur. analytical reagent
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Specifications:
Storage Temperature | Room Temperature | ||
Product Type | Laboratory Chemical | Forms | Powder |
Product Brand | VWR | ||
Product Grade | Analytical grade | Formula | (CH₃)₂NC₆H₄CHO |
4-(Dimethylamino)benzaldehyde, also known as p-Dimethylaminobenzaldehyde (DMAB), is a high-purity aromatic aldehyde commonly used as a chromogenic reagent in analytical chemistry, particularly for the detection of indoles and amines (e.g., Ehrlich’s reagent). With ≥99% purity, this reagent-grade compound complies with European Pharmacopoeia (Ph. Eur.) standards and is suitable for regulated laboratory applications, including colorimetric assays, organic synthesis, and pharmaceutical analysis.
Key Features
- High Purity (≥99%): Ensures accurate and reproducible analytical performance
- Ph. Eur. Compliant: Manufactured according to Reag. Ph. Eur. standards for pharmaceutical use
- Chromogenic Reagent: Widely used in colorimetric detection of indoles and related compounds
- Stable Solid Form: Supplied in plastic bottles for convenient handling and long shelf life
- Versatile Laboratory Use: Applicable in chemical, clinical, and environmental testing workflows
Chemical and Physical Properties
Property | Specification |
---|---|
Chemical Name | 4-(Dimethylamino)benzaldehyde |
Synonyms | p-Dimethylaminobenzaldehyde, DMAB |
CAS Number | 100-10-7 |
Molecular Formula | (CH₃)₂NC₆H₄CHO |
Molecular Weight | 149.19 g/mol |
Boiling Point | 266 °C (at 1013 hPa) |
Melting Point | 72 °C |
Density | 1.0254 g/cm³ (at 99.9 °C) |
Flash Point | >100 °C |
Storage Conditions | Ambient temperature |
MDL Number | MFCD00003381 |
Merck Index | 13,03257 |
EINECS Number | 202-819-0 |
Applications
- Colorimetric Assays: Primary component of Ehrlich’s reagent for detecting tryptophan, indoles, and related compounds
- Pharmaceutical Analysis: Reagent for qualitative screening and identification of active ingredients
- Organic Synthesis: Intermediate in the production of dyes, pigments, and fine chemicals
- Clinical Chemistry: Used in biochemical assays for metabolic studies
- Research & Academia: Suitable for teaching and research in analytical organic chemistry
VWR 4-(Dimethylamino)benzaldehyde ≥99%, AnalaR NORMAPUR® is a reliable, pharmacopeia-grade aromatic aldehyde essential for colorimetric assays, organic synthesis, and regulated pharmaceutical analysis. Its high purity and compliance with Ph. Eur. standards make it a preferred choice for analytical laboratories seeking reproducibility and precision.
Specification Test Results
Assay | Min. 99 % |
Bases of indole type | Passes test |
IR Spectrum | Passes test |
Organic impurities | Passes test |
Solution in acetic acid | Passes test |
Melting point | 72 - 74 °C |
Heavy metals (as Pb) | Max. 10 ppm |
Ignition residue (SO4) | Max. 0.1 % |
Insolubility in alcohol | Max. 100 ppm |
Cl (Chloride) | Max. 50 ppm |
Cu (Copper) | Max. 5 ppm |
Fe (Iron) | Max. 10 ppm |
Pb (Lead) | Max. 5 ppm |
Conforms to Reag. Ph.Eur. | Passes test |
- Pack Size: 250g 50g