93221-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 93221-49-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,2,2 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 93221-49:
(7*9)+(6*3)+(5*2)+(4*2)+(3*1)+(2*4)+(1*9)=119
119 % 10 = 9
So 93221-49-9 is a valid CAS Registry Number.
93221-49-9Relevant academic research and scientific papers
PROCESS FOR PREPARATION OF S-(-)-BETAXOLOL AND SALTS THEREOF
-
Page/Page column 5, (2010/02/15)
The present invention relates to an improved process for preparation of S-(?)-betaxolol salts. More particularly the present invention relates to the preparation of hydrochloride salt of S-(?)-betaxolol of formula (1).
