137869-52-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137869-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,6 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 137869-52:
(8*1)+(7*3)+(6*7)+(5*8)+(4*6)+(3*9)+(2*5)+(1*2)=174
174 % 10 = 4
So 137869-52-4 is a valid CAS Registry Number.
137869-52-4Relevant academic research and scientific papers
Diastereoselection in the Lewis Acid Catalyzed Cycloaddition Reaction of α-Alkoxy Imines
Midland, M. Mark,Koops, Roger W.
, p. 1158 - 1161 (2007/10/02)
The Lewis acid catalyzed cycloaddition reactions of α-benzyloxy imines (RCH(OCH2C6H5)CH=NCH2C6H5) were investigated using 1,3-dimethoxy-1--1,3-butadiene.The observed diastereoselectivity was dependent on both the Lewis acid and substr
