693287-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 693287-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,9,3,2,8 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 693287-31:
(8*6)+(7*9)+(6*3)+(5*2)+(4*8)+(3*7)+(2*3)+(1*1)=199
199 % 10 = 9
So 693287-31-9 is a valid CAS Registry Number.
693287-31-9Relevant articles and documents
Optically active fluorine-containing compounds and processes for their production
-
Page 14, (2008/06/13)
An optically active fluorine-containing compound represented by the following formula (1) or (2) wherein A is an oxygen atom, a sulfur atom or an NH group, and R1 selected from a variety of organic group, is used in the preparation of (S)- or (R)-3,3,3-trifluoro-2-hydroxy-2-methylpropionic acid.