2,4-Dichlorophenoxyacetic acid (2,4-D) was the first synthetic herbicide to be commercially developed and has commonly been used as a broadleaf herbicide for over 60 years. It is a selective herbicide that kills dicots without affecting monocots and mimics natural auxin at the molecular level. 2,4-D was developed during World War II as one of many so-called phenoxy herbicides by aiming to increase crop yields for a nation at war. It was commercially released in 1946 becoming the first successful selective herbicide and allowed for greatly enhanced weed control in wheat, maize, rice, and other similar cereal crops because it specifically targets dicots. This herbicide family is said to have “initiated an agricultural revolution and laid the corner stone of present-day weed science” when it was first marketed in the 1940s.

Cuprous Sulfide (Cu2S) occurs in nature as the mineral and has very different two-dimensional lattice structures, along with excellent electro-catalysis and high conductivity. Recently published article has shown that nanocomposites incorporated with Cu2S nanoflowers can be used for skin tumor therapy and wound healing.

Diazolidinylurea is a broad-spectrum antimicrobial preservative used in cosmetics and pharmaceutical preparations. It is especially active against gram-negative bacteria and is often combined with parabens. Diazolidinylurea is the most active member of the imidazolidinyl urea group, that acts as a formaldehyde releasers. Diazolidinylurea is used in many cosmetics, skin care products, shampoos, and conditioners, as well as a wide range of products including bubble baths, baby wipes, and household detergents.

Isopropyl Myristate is a synthetic oil used as an emollient, thickening agent or lubricant in beauty products. Isopropyl Myristate is a popular cosmetic and pharmaceutical ingredient. It is most often used as an additive in aftershaves, shampoos, bath oils, antiperspirants, deodorants, oral hygiene products, and various creams and lotions.

Sodium dehydroacetate, a water-soluble antiseptic, is a food and feed additive with antimicrobial effects. Recently published studies have shown that sodium dehydroacetate in patients with leg ulcers could cause allergic contact dermatitis.

Limonene is a naturally occurring chemical which is used in many food products, soaps and perfumes for its lemon-like flavor and odor. Limonene also is a registered active ingredient in 15 pesticide products used as insecticides, insect repellents, and dog and cat repellents. Pesticide products containing limonene are used for flea and tick control on pets, as an insecticide spray, an outdoor dog and cat repellent. It has also been used for relief of heartburn and gastroesophageal reflux (GERD). D-limonene has well-established chemopreventive activity against many types of cancer. Limonene and its oxidation products are skin and respiratory irritants.