863203-60-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 863203-60-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,3,2,0 and 3 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 863203-60:
(8*8)+(7*6)+(6*3)+(5*2)+(4*0)+(3*3)+(2*6)+(1*0)=155
155 % 10 = 5
So 863203-60-5 is a valid CAS Registry Number.
863203-60-5Relevant articles and documents
Synthesis method of biotin intermediate
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Paragraph 0095-0151, (2019/12/29)
The invention belongs to the field of chemical synthesis of medicines, and particularly discloses a synthesis method of a biotin intermediate 5-((3aS, 6aR)-1, 3-dibenzyl-4-hydroxy-2-oxohexyl-1H-furo [3, 4-d] imidazole-4-yl)-5-olefine acid. The preparation