138609-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138609-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,6,0 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138609-89:
(8*1)+(7*3)+(6*8)+(5*6)+(4*0)+(3*9)+(2*8)+(1*9)=159
159 % 10 = 9
So 138609-89-9 is a valid CAS Registry Number.
138609-89-9Relevant academic research and scientific papers
A complete set of β-cyclodextrins 6(A),6(X)-diactivated by two different sulfonyl groups
Fujita,Yamamura,Imoto
, p. 6737 - 6740 (2007/10/02)
Each of 6(A)-0-(p-nitrobenzenesulfonyl)-6(X)-O-(β-naphthalenesu lfonyl)-β-cyclodextrins (X=B-G) was prepared by the reaction of 6-O-(β-naphthalenesulfonyl)-β-cyclodextrin with p-nitrobenzenesulfonyl chloride, isolated, and structurally determined through
