C21H30O5 is a chemical compound with a molecular formula indicating that it contains 21 carbon atoms, 30 hydrogen atoms, and 5 oxygen atoms. C21H30O5 is likely a complex organic molecule, possibly a derivative of a steroid or a terpene, given the high carbon and hydrogen content. It could be a natural product or a synthetic compound used in various industries, such as pharmaceuticals, fragrances, or food additives. The specific properties and applications of C21H30O5 would depend on its exact structure, which is not provided in the molecular formula alone. Further analysis, such as spectroscopic techniques or chemical synthesis, would be required to determine its structure and potential uses.
The CAS Registry Mumber 746-26-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,4 and 6 respectively; the second part has 2 digits, 2 and 6 respectively. Calculate Digit Verification of CAS Registry Number 746-26: (5*7)+(4*4)+(3*6)+(2*2)+(1*6)=79 79 % 10 = 9 So 746-26-9 is a valid CAS Registry Number.