1426839-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1426839-83-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,6,8,3 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1426839-83:
(9*1)+(8*4)+(7*2)+(6*6)+(5*8)+(4*3)+(3*9)+(2*8)+(1*3)=189
189 % 10 = 9
So 1426839-83-9 is a valid CAS Registry Number.
1426839-83-9Relevant articles and documents
PREPARATION OF MICAFUNGIN INTERMEDIATES
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Paragraph 0062, (2014/11/13)
The present invention relates to the preparation of compounds, in particular to the preparation of compounds of formula (I), which may be used with a compound of formula (VI), or a salt thereof as intermediates for the preparation of antifungal agents, preferably micafungin (MICA) or a salt thereof.