(+/-)-4-isopropyl-cyclohex-2-enone-(2,4-dinitro-phenylhydrazone) and (+/-)-cryptone-(2,4-dinitro-phenylhydrazone) are two distinct chemical compounds. The first compound, (+/-)-4-isopropyl-cyclohex-2-enone-(2,4-dinitro-phenylhydrazone), is a derivative of 4-isopropyl-cyclohex-2-enone, featuring a 2,4-dinitrophenylhydrazone group attached to the carbonyl group. This modification enhances its solubility and stability, making it useful for analytical purposes. The second compound, (+/-)-cryptone-(2,4-dinitro-phenylhydrazone), is a derivative of cryptone, a bicyclic ketone, with a similar 2,4-dinitrophenylhydrazone group attached. Both compounds are characterized by the presence of the 2,4-dinitrophenylhydrazone moiety, which imparts distinct spectroscopic properties and is often used in the identification and characterization of ketones and aldehydes. These compounds are typically employed in research settings for the analysis of complex organic molecules.
The CAS Registry Mumber 2153-64-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,5 and 3 respectively; the second part has 2 digits, 6 and 4 respectively. Calculate Digit Verification of CAS Registry Number 2153-64: (6*2)+(5*1)+(4*5)+(3*3)+(2*6)+(1*4)=62 62 % 10 = 2 So 2153-64-2 is a valid CAS Registry Number.