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130252-83-4

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130252-83-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 130252-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,2,5 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 130252-83:
(8*1)+(7*3)+(6*0)+(5*2)+(4*5)+(3*2)+(2*8)+(1*3)=84
84 % 10 = 4
So 130252-83-4 is a valid CAS Registry Number.

130252-83-4Relevant articles and documents

Synthetic studies of carzinophilin. Part 1: Synthesis of 2-methylidene-1-azabicyclo[3.1.0]hexane systems related to carzinophilin

Hashimoto, Masaru,Matsumoto, Miyoko,Terashima, Shiro

, p. 3019 - 3040 (2007/10/03)

Synthesis of the model compounds of carzinophilin carrying 2-methylidene-1-aza-bicyclo[3.1.0]hexane systems was achieved. Formation of malonylidenes or N-acyl-glycinylidenepyrrolidines was carried out by utilizing Eschenmoser's sulfide contraction or Herdeis's condensation between the 2-methylthio-Δ1-pyrrolone derivatives and ethyl nitroacetate, respectively. The 1-azabicyclo-[3.1.0]hexane systems were constructed by base-promoted aziridine formation.

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