405167-45-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 405167-45-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,5,1,6 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 405167-45:
(8*4)+(7*0)+(6*5)+(5*1)+(4*6)+(3*7)+(2*4)+(1*5)=125
125 % 10 = 5
So 405167-45-5 is a valid CAS Registry Number.
405167-45-5Relevant academic research and scientific papers
Method for producing ketocarboxylic acid derivatives
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Page/Page column 8-9, (2010/02/03)
A novel process affords ω-ketocarboxylic acid derivatives of the formula (I) in which R1, R2, R3, and n are as defined in the description by reaction of compounds of the formula (II) with compounds of the formula (III) or