17689-03-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17689-03-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,8 and 9 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17689-03:
(7*1)+(6*7)+(5*6)+(4*8)+(3*9)+(2*0)+(1*3)=141
141 % 10 = 1
So 17689-03-1 is a valid CAS Registry Number.
17689-03-1Relevant articles and documents
Optically active borinic esters and ketones
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, (2008/06/13)
A process for synthesizing an optically pure ketone comprising the steps of: treating an appropriate optically pure boronic ester with an organolithium compound at -78° C. to obtain the "ate" complex, separating the optically pure borinic ester from the c