4-Ethyl-2-isopropyl-3-methyl-phenol, also known as thymol, is a naturally occurring monoterpene phenol derived from the essential oils of thyme, oregano, and other plants. It is a colorless to pale yellow liquid with a strong, aromatic odor and is widely used in the pharmaceutical, food, and fragrance industries. Thymol exhibits antiseptic, antifungal, and antibacterial properties, making it a popular ingredient in mouthwashes, cough syrups, and topical ointments. Additionally, it is used as a flavoring agent in food products, particularly in the preparation of certain alcoholic beverages and confectionery items. The chemical structure of thymol consists of a phenol ring with an ethyl group at the 4-position, an isopropyl group at the 2-position, and a methyl group at the 3-position, which contributes to its unique properties and applications.
The CAS Registry Mumber 1634-56-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,3 and 4 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 1634-56: (6*1)+(5*6)+(4*3)+(3*4)+(2*5)+(1*6)=76 76 % 10 = 6 So 1634-56-6 is a valid CAS Registry Number.