Urea crystals

Benzimidazole crystals

Cinnamic Acid

Sulphamic acid

Crystals of sulphanilamide

Hippuric acid crystals

Paracetamol

Crystals of malic acid, an intermediate in the TCA cycle. This chemical occurs naturally in certain foods giving them a tart flavour and when added to food it is labelled as E296.

Fern of Benzimidazole

Tartaric acid crystals

Crytals of Ascorbic acid

Vitamin C, also known as a ascorbic acid, is a water-soluble vitamin, which means it is excreated by the body and needs to be replaced in our diet. Unlike most mammals, humans do not have the ability to make their own vitamin C. Vitamin C deficiency can lead to scurvy.

Crystals of benzimidazole. Benzimidazole is used as a fungicide in agriculture and to treat worms in human and veterinary medicine.

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