569340-31-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 569340-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,6,9,3,4 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 569340-31:
(8*5)+(7*6)+(6*9)+(5*3)+(4*4)+(3*0)+(2*3)+(1*1)=174
174 % 10 = 4
So 569340-31-4 is a valid CAS Registry Number.
569340-31-4Relevant articles and documents
Synthesis method of ethyl 2,3-dichloro-4-nitrobenzoate
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Paragraph 0004; 0010; 0012, (2021/03/31)
The invention belongs to the technical field of medical intermediates, and particularly relates to a synthesis method of ethyl 2,3-dichloro-4-nitrobenzoate. The synthesis method of ethyl 2,3-dichloro-4-nitrobenzoate in the invention provides a synthetic r