137438-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137438-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,4,3 and 8 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 137438-52:
(8*1)+(7*3)+(6*7)+(5*4)+(4*3)+(3*8)+(2*5)+(1*2)=139
139 % 10 = 9
So 137438-52-9 is a valid CAS Registry Number.
137438-52-9Relevant articles and documents
The Silyl Modified Sakurai (SMS) reaction. An efficient and versatile one-pot synthesis of homoallylic ethers
Mekhalfia,Marko
, p. 4779 - 4782 (2007/10/02)
An efficient and versatile preparation of homoallylic ethers from trimethylsilyl ethers, allyltrimethylsilane and carbonyl compounds is described. Some preliminary experiments, aimed at controlling the diastereofacial selection in the SMS reaction, are al
