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209589-51-5

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209589-51-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 209589-51-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,5,8 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 209589-51:
(8*2)+(7*0)+(6*9)+(5*5)+(4*8)+(3*9)+(2*5)+(1*1)=165
165 % 10 = 5
So 209589-51-5 is a valid CAS Registry Number.

209589-51-5Downstream Products

209589-51-5Relevant articles and documents

A straightforward preparation of chiral 5-(aminomethyl)oxazole derivatives from α-amino esters and α-lithiated isocyanides

Ohba, Masashi,Kubo, Hiroyuki,Seto, Shigeki,Fujii, Tozo,Ishibashi, Hiroyuki

, p. 860 - 862 (1998)

An efficient and general preparation of several chiral N-protected 5- (aminomethyl)oxazoles has been accomplished by treatment of N-protected α- amino esters with α-lithiated isocyanides, obtained by metalation of methyl and benzyl isocyanides with BuLi or of ethyl isocyanide with lithium diisopropylamide.

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