81743-93-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81743-93-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,4 and 3 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81743-93:
(7*8)+(6*1)+(5*7)+(4*4)+(3*3)+(2*9)+(1*3)=143
143 % 10 = 3
So 81743-93-3 is a valid CAS Registry Number.
InChI:InChI=1/C16H13NO3Se/c1-2-20-16(19)11-7-9-12(10-8-11)17-15(18)13-5-3-4-6-14(13)21-17/h3-10H,2H2,1H3
81743-93-3Relevant articles and documents
Benzisoselenazolone derivative and preparation method and application thereof
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, (2022/01/05)
The invention provides a benzisoselenazolone derivative and a preparation method and application thereof. The compound has a structure as shown in a formula I. The invention further relates to a preparation method of the compound with the structure shown in the formula I, a pharmaceutical composition and application of the compound in preparation of anti-SARS-CoV-2Mpro drugs.