Qualitative Tests for Glycosides Flashcards by Carille Narag

Q

Test for Sterols

A

Salkowski

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Q

Test for unsaturated sterols

A

Liebermann-Burchard

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Q

Test for unsaturated lactones

A

Kedde’s

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Q

Test for deoxysugars

A

Keller-Killiani

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Q

Test for chalcone/aurone

A

Batesmith-Metcalf

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Q

Test for gamma-benzopyrone nucleus

A

Wilstatter
Cyanidin

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Q

Test for catechins

A

Matchstick

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Q

Test for saponins

A

Froth
Hemolysis
Capillary

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Q

Test for anthraquinones

A

Modified Borntrager’s

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Q

Test for cyanogenic

A

Guignard

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Q

Reagent of Salkowski

A

Sulfuric acid

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Q

Reagent of Liebermann-Burchard

A

Sulfuric acid
Acetic anhydride

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Q

Reagent of Kedde’s

A

Dinitrobenzoic acid in NaOH

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Q

Reagent of Batesmith-Metcalf

A

HCL

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Q

Reagent of Wilstatter/Cyanidin

A

HCl
Magnesium
Octanol

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Q

Reagent of Matchstick

A

Matchstick in HCl

Q

Reagent of Modified Borntrager’s

A

NH4OH + FeCl3 and HCl

Q

Reagent of Guignard

A

Sodium picrate paper

Q

Result of Salkowski

A

Red/Violet

Q

Result of Liebermann-Burchard

A

Saturated: yellow
Unsaturated: emerald green

Q

Result of Kedde’s

A

Blue-violet/Amethyst

Q

Result of Keller-Killiani

A

Reddish brown

Q

Result of Batesmith-Metcalf

A

Red

Q

Result of Wilstatter/Cyanidin

A

Various colors

Result of Matchstick

Pink stain on wood

Result of Froth

Honeycomb froth > 2 cm for 10 minutes or more

Result of Hemolysis

Zones of hemolysis

Result of Capillary

Reduction of at least 1/2 height

Result of Modified Borntrager’s

Pink

Result of Guignard

Red color on the paper