198632-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198632-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,6,3 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 198632-98:
(8*1)+(7*9)+(6*8)+(5*6)+(4*3)+(3*2)+(2*9)+(1*8)=193
193 % 10 = 3
So 198632-98-3 is a valid CAS Registry Number.
198632-98-3Relevant academic research and scientific papers
Synthesis of 4--3-(trifluoromethyl)butanoic acid
Coe, Paul L.,Markou, Magdalini,Tatlow, John Colin
, p. 112 - 118 (2007/10/03)
Benzyl trifluoromethyl ketone and ethyl bromoacetate afforded ethyl 3-hydroxy-4-phenyl-3-(trifluoromethyl)butanoate in a Reformatsky-type reaction.This hydroxy ester, by successive stages of dehydration to a but-2-enoate, hydrogenation of the double bond,
