138754-24-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138754-24-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,5 and 4 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138754-24:
(8*1)+(7*3)+(6*8)+(5*7)+(4*5)+(3*4)+(2*2)+(1*4)=152
152 % 10 = 2
So 138754-24-2 is a valid CAS Registry Number.
138754-24-2Relevant articles and documents
Stereoselective Synthesis of Both Diastereomers of the α-Methyl-β-hydroxy-β-alkyl(aryl) Units by Use of Tin(II) Triflate-Mediated Aldol Reaction
Kobayashi, Shu,Hachiya, Iwao
, p. 1324 - 1326 (2007/10/02)
Both diastereomers of the α-methyl-β-hydroxy-β-alkyl(aryl) units are prepared by the tin(II) triflate-mediated aldol reaction of 1-(ethylthio)-1-(trimethylsiloxy)propene with α-keto esters in high selectivities.
