82158-51-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82158-51-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,5 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82158-51:
(7*8)+(6*2)+(5*1)+(4*5)+(3*8)+(2*5)+(1*1)=128
128 % 10 = 8
So 82158-51-8 is a valid CAS Registry Number.
82158-51-8Relevant articles and documents
2-aroyl benzofuran derivative or 2-aroyl naphthofuran derivative and synthesis method thereof
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Paragraph 0153-0163, (2019/11/20)
The invention relates to a 2-aroyl benzofuran derivative or a 2-aroyl naphthofuran derivative and a synthesis method thereof. The compound has a structure shown in the following description, wherein Ris methoxyl, methyl, hydrogen, chlorine and nitryl. The
