138448-73-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138448-73-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,4,4 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 138448-73:
(8*1)+(7*3)+(6*8)+(5*4)+(4*4)+(3*8)+(2*7)+(1*3)=154
154 % 10 = 4
So 138448-73-4 is a valid CAS Registry Number.
138448-73-4Relevant articles and documents
A highly stereoselective synthesis of (3S,4S)-statine and (3S,4S)-cyclohexylstatine
Takemoto,Matsumoto,Ito,Terashima
, p. 2425 - 2428 (2007/10/02)
The title compounds, which are synthetic intermediates of renin inhibitors, could be prepared from (S)-leucine and (S)-phenylalanine, respectively, by employing highly stereoselective aldol reactions of O-methyl-O-trimethylsilyl ketene acetal with an (S)-
