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Kovacs’ Reagent
Boiling point (bp) 108 °C
Flash point (flp) 36 °C
Storage temp. +4 °C
ADR 8 II
WGK 1
UN-Nr. 2920
Application: Customary concentration in medium: 4-10 %
100 ml Kovacs’ Reagent is sufficient for approx. 2 l medium.
61,20 €/VE
Excl. btw | 100 ml Per VE
Bestelnr. 2950.1
Productdetails
Kovacs’ Reagent for microbiology
Tryptophanase-positive microorganisms (e.g. E. coli, S. faecalis, Proteus sp.) that cleave tryptophane hereby release indole, which may be detected by reaction with dimethylamino benzaldehyde by forming a dark red dye.
Microorganisms must be incubated in a glucose-free broth with high concentrations of tryptophane present. Kovacs’ Reagent is added to 24-48 h old cultures in a concentration of 0.2 to 0.5 ml per 5 ml broth. A colour shift to dark red shows presence of indole, thus confirming the inoculating colony as being indole-/tryptophanase-positive.
- Tussentotaal: 0.00
| Bestelnr. | VE | Verp. | Prijs | Hoeveelheid | |
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| 2950.1 | 100 ml | glass |
61,20 € |
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- Tussentotaal: 0.00
Downloads / MSDS
Analysecertificaten
Type analysis
| Appearance | yellowish, clear liquid |
| 4-(Dimethylamino)benzaldehyde | 50 g/l |
| 1-Butanol | 75 % |
| Hydrochloric acid (37 %) | 25 % |