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Dibenzothiophene (DBT, diphenylene sulfide) is the organosulfur compound consisting of two benzene rings fused to a central thiophene ring. It has the chemical formula C 12 H 8 S. It is a colourless solid that is chemically somewhat similar to anthracene .
Isopropyl rubbing alcohols contain from 50% to 99% by volume of isopropyl alcohol, the remainder consisting of water. Boiling points vary with the proportion of isopropyl alcohol from 80 to 83 °C (176 to 181 °F); likewise, freezing points vary from −32 to −50 °C (−26 to −58 °F). [6] Surgical spirit BP boils at 80 °C (176 °F). [7]
Dibenzofuran is a relatively non-toxic compound as evidenced by rats being unaffected after a 200-day diet consisting of 0.025 – 0.4% of DBF. [1] The polychlorinated dibenzofurans are however among the potentially toxic dioxins and dioxin-like compounds.
It is bifunctional, containing both a tertiary amine and primary alcohol functional groups. It is a colorless viscous liquid. It is used in skin care products for improving skin tone and also taken orally as a nootropic. It is prepared by the ethoxylation of dimethylamine. [2]
Melting point: 69 °C (156 °F; 342 K) Boiling point: 298 °C (568 °F; 571 K) ... Diphenylmethanol is an irritant to the eyes, skin and respiratory system.
Benzyl alcohol is used effectively for treating lice infestations as the active ingredient in lotion shampoo with 5% benzyl alcohol. [13] Benzyl alcohol is an ingredient used in the manufacture of soaps, topical creams, skin lotions, shampoos, and facial cleansers and is popular due to its anti-bacterial and anti-fungal properties.
Melting point: 3.6 °C (38.5 °F; 276.8 K) Boiling point: 298 °C (568 °F; 571 K) Hazards ... It is classified as an ether derived from benzyl alcohol.
Methylsulfonylmethane is marketed as a dietary supplement with medical claims ranging from anti-inflammatory effects for pain management, skin condition and aging treatments, and immune system modulation. [9] [10] [11] No medical uses for MSM have been approved and there is limited evidence to support most of the claims.