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135974-94-6

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135974-94-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135974-94-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,9,7 and 4 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 135974-94:
(8*1)+(7*3)+(6*5)+(5*9)+(4*7)+(3*4)+(2*9)+(1*4)=166
166 % 10 = 6
So 135974-94-6 is a valid CAS Registry Number.

135974-94-6Downstream Products

135974-94-6Relevant articles and documents

General Synthesis of 1-Oxaspirodecan-2-ones and 1-Oxaspirodecanes from 5-Methylene-2(5H)-furanone

Alonso, Daniel,Font, Josep,Ortuno, Rosa M.

, p. 5567 - 5572 (2007/10/02)

5-Methylene-2(5H)-furanone underwent Diels-Alder cycloadditions to butadiene and several acyclic and cyclic C-substituted dienes, respectively, affording bicyclic and tricyclic spiroadducts in good yields.These compounds are precursors of other unsaturated and saturated spirolactones and also spiroethers, which were obtained through simple chemical reactions, i.e., hydrogenation of C-C double bonds, reduction of the carbonyl group, and Michael addition.The synthesis of 32 spirolactones and eight spiroethers illustrates the scope and efficiency of this method.Many of these products are suitable for use as components of perfumes and aromas owing to their olfactive properties.

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