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4α-ethyl-5α-cholestan-3-one is a steroidal ketone with the molecular formula C28H48O. It is a derivative of cholestane, a naturally occurring steroid, and features an ethyl group at the 4α position and a ketone group at the 3 position. 4α-ethyl-5α-cholestan-3-one is of interest in the field of organic chemistry and may have potential applications in pharmaceuticals or as a chemical intermediate. Its structure is characterized by a rigid steroid nucleus with a unique substitution pattern, which can influence its chemical properties and reactivity.

5189-81-1

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5189-81-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5189-81-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,8 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5189-81:
(6*5)+(5*1)+(4*8)+(3*9)+(2*8)+(1*1)=111
111 % 10 = 1
So 5189-81-1 is a valid CAS Registry Number.

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