321697-17-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 321697-17-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,2,1,6,9 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 321697-17:
(8*3)+(7*2)+(6*1)+(5*6)+(4*9)+(3*7)+(2*1)+(1*7)=140
140 % 10 = 0
So 321697-17-0 is a valid CAS Registry Number.
321697-17-0Relevant articles and documents
COVALENT ORGANIC FRAMEWORKS WITH A WOVEN STRUCTURE
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Paragraph 0107, (2018/11/26)
The disclosure provides for covalent organic frameworks (COFs) that constructed from weaving a plurality of long organic threads together. In particular, the disclosure provides for the construction of woven COFS, where long organic strands are connected
