3,4-Dihydroxy-5-methoxy-1,2-dimethyl-benzol, also known as syringic acid, is a naturally occurring organic compound belonging to the class of phenolic acids. It is characterized by a benzene ring structure with two hydroxyl groups at the 3 and 4 positions, a methoxy group at the 5 position, and two methyl groups at the 1 and 2 positions. Syringic acid is widely found in plants, particularly in the bark of trees such as willow and poplar, and is known for its antioxidant, anti-inflammatory, and antimicrobial properties. It is also used in the synthesis of various pharmaceuticals, agrochemicals, and other industrial applications.
The CAS Registry Mumber 5091-00-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,9 and 1 respectively; the second part has 2 digits, 0 and 0 respectively. Calculate Digit Verification of CAS Registry Number 5091-00: (6*5)+(5*0)+(4*9)+(3*1)+(2*0)+(1*0)=69 69 % 10 = 9 So 5091-00-9 is a valid CAS Registry Number.