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Natural product reagent A, 5 g
≥98 %, p.a.
H315-H319-H335
causes skin irritation, causes serious eye irritation, may cause respiratory irritation
P280 P302+P352 P305+P351+P338
wear protective gloves/protective clothing/eye protection/face protection, IF ON SKIN: Wash with plenty of water, IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
VE
Verp.
Diphenylboric acid β-aminoethyl ester complex
Empirical formula C14H16BNO
Molar mass (M) 225,10 g/mol
Density (D) 1,2 g/cm³
Melting point (mp) 192 °C
Storage temp. +4 °C
WGK 1
CAS No. 524-95-8
Molar mass (M) 225,10 g/mol
Density (D) 1,2 g/cm³
Melting point (mp) 192 °C
Storage temp. +4 °C
WGK 1
CAS No. 524-95-8
Biochemical analytical reagent for determination of flavonoids and vegetable acids.
Application: Natural substance-polyethylene glycol reagent (NST/PEG). Spray a 1 % methanol solution of natural substance reagent A and a 5 % ethanol PEG 4000 solution, one after the other onto the TLC-plate (approx. 10 ml and 8 ml). Intensive fluorescent colours will appear immediately or after 15 min in UV-365 nm. Adding PEG will lead to an increase in detection sensitivity (from 10 µg to 2.5 µg). The fluorescence behaviour depends on the structure. The reagent must be freshly prepared before use (1 % in methanol). Spray under the fume hood!
Application: Natural substance-polyethylene glycol reagent (NST/PEG). Spray a 1 % methanol solution of natural substance reagent A and a 5 % ethanol PEG 4000 solution, one after the other onto the TLC-plate (approx. 10 ml and 8 ml). Intensive fluorescent colours will appear immediately or after 15 min in UV-365 nm. Adding PEG will lead to an increase in detection sensitivity (from 10 µg to 2.5 µg). The fluorescence behaviour depends on the structure. The reagent must be freshly prepared before use (1 % in methanol). Spray under the fume hood!
73,00 €/VE
Excl. btw | 5 g Per VE
Bestelnr. 9920.1
Op voorraad
Vrij van verzendingskosten vanaf 250 €
Snelle en betrouwbare levering!
Vanaf 6 VE
69,35 €/VE
Vanaf 24 VE
65,70 €/VE
In het winkelmandje
In het winkelmandje
Natural product reagent A
Geselecteerde hoeveelheid:
0
- Tussentotaal: 0.00
In het winkelmandje
| Bestelnr. | VE | Verp. | Prijs | Hoeveelheid | |
|---|---|---|---|---|---|
| 9920.1 | 5 g | plastic |
73,00 € |
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| 9920.2 | 25 g | plastic |
198,90 € |
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| 9920.3 | 50 g | plastic |
342,95 € |
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Op voorraad
Beschikbaar
In bestelling
Niet meer verkrijgbaar
Leveringsdatum onbekend
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Geselecteerde hoeveelheid:
0
- Tussentotaal: 0.00
In het winkelmandje
Downloads / MSDS
Analysecertificaten
Type analysis
| Appearance | white cryst. powder |
| Assay | ≥98 % |
| Melting point | 190-194 °C |