176644-45-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 176644-45-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,6,4 and 4 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 176644-45:
(8*1)+(7*7)+(6*6)+(5*6)+(4*4)+(3*4)+(2*4)+(1*5)=164
164 % 10 = 4
So 176644-45-4 is a valid CAS Registry Number.
176644-45-4Relevant articles and documents
Method for producing ortho-alkylated benzoic acid derivatives
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Page column 8-9, (2010/01/30)
The invention relates to a process for the preparation of ortho-alkylated benzoic acid derivatives of the formula I characterized in that an aryl bromide of the formula II is reacted with a secondary or tertiary organolithium compound and CO2.