556811-69-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 556811-69-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,5,6,8,1 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 556811-69:
(8*5)+(7*5)+(6*6)+(5*8)+(4*1)+(3*1)+(2*6)+(1*9)=179
179 % 10 = 9
So 556811-69-9 is a valid CAS Registry Number.
556811-69-9Relevant articles and documents
Process for preparing terbinafine and HCI salt thereof
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, (2008/06/13)
Provided are a process for preparing terbinafine or its HCl salt, which comprises: (a) reacting a furan derivative with a base; (b) performing a reductive alkylation of the resulting compound obtained in the step (a) with N-methyl-1-naphthalenemethylamine or its HCl salt; and (c) purifying the resulting compound obtained in the step (b).
