49825 Millipore

DMACA Reagent

for microbiology

Synonym: 4-(Dimethylamino)-cinnamaldehyde solution

  • CAS Number 6203-18-5

  • Empirical Formula (Hill Notation) C11H13NO

  • Molecular Weight 175.23

  •  Beilstein/REAXYS Number 2208002

  •  MDL number MFCD00007002

  •  PubChem Substance ID 329757532



Related Categories Aldehydes, Biochemical Reagents for Identification, Building Blocks, C10-C12, Carbonyl Compounds,
grade   for microbiology
Featured Industry   Food and Beverages


General description

DMACA is basically a selective staining reagent. It helps identify the flavanols by staining them blue in color.


Used to determine the ability of an organism to split indole from the tryptophan molecule.


Composition per 100 ml:
Dimethylaminocinnamaldehye 1 g
Hydrochloric acid (concentrated) 1.0 ml
distilled water 99.0 ml

Other Notes

Reagent for the rapid identification of Streptococci.

Safety & Documentation

Safety Information

GHS05  GHS05
Signal word 
Hazard statements 
Personal Protective Equipment 
UN 1789 8 / PGIII
WGK Germany 


Certificate of Analysis

Protocols & Articles


Differentiation of Escherichia coli from coliforms

In August 2008, the discovery of E. coli-contaminated beef in the United States prompted a nationwide recall of beef. The source turned out to be one supplier that had a history of contamination of i...
Jvo Siegrist
AnalytiX Volume 8 Article 5
Keywords: Decarboxylations, Fermentation, Genetic, Indicators, Microbiology, Reductions

EZ-Product Family for Bioburden Testing

The EZ family has been designed to optimize and streamline your bioburden workflow. Ideal for microbiological water, beverage, and medical device testing using the membrane filtration method. The fam...
Keywords: Filtration

Identification of Microorganisms Based on Color

For microbiologists the most fundamental stain was developed in 1884 by the Danish bacteriologist Hans Christian Gram. The Gram Stain allows the determination of morphology, dividing bacteria into tw...
Jvo Siegrist
Microbiology Focus Edition 1.4, Product Manager Microbiology....
Keywords: Antibiotics, Enzyme activity, Fermentation, Gram stain, Help, Indicators, Reductions

Microbiology Introduction

An initial aim of all microbiologists is the reproducible growth of their microbial cultures, no matter whether the microorganisms are of natural origin or have been genetically engineered by man. Re...
Keywords: Absorption, Aerobic, Anaerobic, Antibiotics, Antimicrobials, Buffers, Culture media, Diffusion, Environmental, Filtration, Genetic, Growth factors, Metabolism, Phase transitions, Precipitation, Reductions, Respiration, Sample preparations, Vitamins

Pseudomonas Media and Tests

Pseudomonas are motile (one or more polar flagella), rod shaped and aerobe Gram-negative bacteria. They are found almost everywhere, in soil, water, plants and animals. In most cases it is not pathog...
Jvo Siegrist, Product Manager Microbiology,
Analytix Volume 2007 Article 5
Keywords: Anaerobic, Antifungals, Biochemistry, Cosmetics, Diagnostic, Environmental, Fermentation, Glycolysis, Metabolism, Metabolites, Microbiology, Pentose phosphate pathway, Pharmaceutical, Respiratory

Peer-Reviewed Papers


Related Products

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?