98552-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98552-51-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,5,5 and 2 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 98552-51:
(7*9)+(6*8)+(5*5)+(4*5)+(3*2)+(2*5)+(1*1)=173
173 % 10 = 3
So 98552-51-3 is a valid CAS Registry Number.
98552-51-3Relevant academic research and scientific papers
PROCESS FOR THE PREPARATION OF 4-DIMETHYLAMINOCROTONIC ACID
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Page/Page column 6, (2015/12/24)
The present invention provides a process for the preparation of 4- dimethylaminocrotonic acid of Formula (II) or its salts, which is used as an intermediate for the preparation of afatinib or its salts.
