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191800-36-9

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191800-36-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191800-36-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,8,0 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 191800-36:
(8*1)+(7*9)+(6*1)+(5*8)+(4*0)+(3*0)+(2*3)+(1*6)=129
129 % 10 = 9
So 191800-36-9 is a valid CAS Registry Number.

191800-36-9Relevant articles and documents

Total synthesis of (-)-bulgecinine

Maeda, Mikiko,Okazaki, Fumiaki,Murayama, Mayumi,Tachibana, Yohko,Aoyagi, Yutaka,Ohta, Akihiro

, p. 962 - 965 (1997)

A short synthetic route to (-)-bulgecinine (1), the amino acid moiety of bulgecins, was established by using 1,3-dipolar cycloaddition of N-benzyl- α-methoxycarbonylmethanimine N-oxide (6) to a chiral allylic alcohol (5) with moderate threo selectivity as the key reaction.

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