1017576-43-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1017576-43-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,7,5,7 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1017576-43:
(9*1)+(8*0)+(7*1)+(6*7)+(5*5)+(4*7)+(3*6)+(2*4)+(1*3)=140
140 % 10 = 0
So 1017576-43-0 is a valid CAS Registry Number.
1017576-43-0Relevant articles and documents
Preparation method for 2, 3-difluoro-6-methoxy benzoic acid
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Paragraph 0032; 0038; 0044; 0050; 0056; 0062; 0068; 0074, (2017/02/28)
The invention provides a preparation method for 2, 3-difluoro-6-methoxy benzoic acid. The preparation method includes the steps: (1) preparing tetrahydrofuran solution of lithium diisopropylamide; (2) reducing temperature to range from -75 DEG C to -65 DE
