65694-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 65694-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,6,9 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 65694-41:
(7*6)+(6*5)+(5*6)+(4*9)+(3*4)+(2*4)+(1*1)=159
159 % 10 = 9
So 65694-41-9 is a valid CAS Registry Number.
65694-41-9Relevant academic research and scientific papers
Process for the preparation of 17β-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone
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, (2008/06/13)
A new process utilizing certain novel intermediates for the preparation of 17β-hydroxy-3-oxo-17α-pregn-4-ene-21-carboxylic acid γ-lactone is described herein. The procedure utilizes readily available and inexpensive sarsasaponin as starting material.
