5042-80-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5042-80-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,4 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 5042-80:
(6*5)+(5*0)+(4*4)+(3*2)+(2*8)+(1*0)=68
68 % 10 = 8
So 5042-80-8 is a valid CAS Registry Number.
5042-80-8Relevant academic research and scientific papers
SUBSTITUTED CYCLOHEXENONES
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Page/Page column 16-18, (2009/09/05)
The present invention relates to a method of preparation of an optically active cyclohexenone derivative of Formula (I) O R 1 R 2 * R 1 and wherein R1 and R2 are organic residues.
