609785-70-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 609785-70-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,0,9,7,8 and 5 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 609785-70:
(8*6)+(7*0)+(6*9)+(5*7)+(4*8)+(3*5)+(2*7)+(1*0)=198
198 % 10 = 8
So 609785-70-8 is a valid CAS Registry Number.
609785-70-8Relevant articles and documents
Preparation method of lenvatinib
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, (2020/05/01)
The invention discloses a preparation method of lenvatinib, which comprises the following steps: by using 4-nitro-2-chlorobenzonitrile as an initial raw material, introducing nitro into molecules forelectron withdrawing, thereby greatly lowering the elect