157427-27-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157427-27-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,2 and 7 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 157427-27:
(8*1)+(7*5)+(6*7)+(5*4)+(4*2)+(3*7)+(2*2)+(1*7)=145
145 % 10 = 5
So 157427-27-5 is a valid CAS Registry Number.
157427-27-5Relevant articles and documents
Aldol Reaction of Enol Acetates and Lactols with N-Chlorosuccinimide and Tin(II) Chloride. Diastereoselective Synthesis of Disubstituted Cyclic Ethers
Masuyama, Yoshiro,Kobayashi, Yumiko,Kurusu, Yasuhiko
, p. 1123 - 1124 (1994)
Lactols reacted with enol acetates by a Lewis acid reagent, derived from N-chlorosuccinimide and tin(II) chloride, to produce 2-acetonyl cyclic ethers diastereoselectively.