The chemical compound "O2,O3,O4-triacetyl-O1-(3-oxo-androst-4-en-17β-yl)-β-D-glucopyranuronic acid methyl ester" is a complex organic molecule derived from a glucuronic acid structure. It features a β-D-glucopyranuronic acid backbone, which is a type of sugar acid, with three acetyl groups attached at the second, third, and fourth positions. The first position (O1) is linked to a 3-oxo-androst-4-en-17β-yl moiety, which is a derivative of androstane, a steroid structure. The molecule also includes a methyl ester group, indicating that the carboxylic acid group of the glucuronic acid has been esterified with methanol. O2,O3,O4-triacetyl-O1-(3-oxo-androst-4-en-17β-yl)-β-D-glucopyranuronic acid methyl ester is likely to be found in the context of pharmaceuticals or biochemistry, where such complex structures can have specific biological activities or serve as intermediates in the synthesis of other compounds.
The CAS Registry Mumber 4145-58-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,4 and 5 respectively; the second part has 2 digits, 5 and 8 respectively. Calculate Digit Verification of CAS Registry Number 4145-58: (6*4)+(5*1)+(4*4)+(3*5)+(2*5)+(1*8)=78 78 % 10 = 8 So 4145-58-8 is a valid CAS Registry Number.